./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 ae007674 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-ae00767 [2021-12-28 05:17:59,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 05:17:59,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 05:17:59,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 05:17:59,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 05:17:59,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 05:17:59,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 05:17:59,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 05:17:59,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 05:17:59,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 05:17:59,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 05:17:59,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 05:17:59,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 05:17:59,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 05:17:59,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 05:17:59,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 05:17:59,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 05:17:59,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 05:17:59,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 05:17:59,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 05:17:59,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 05:17:59,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 05:17:59,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 05:17:59,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 05:17:59,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 05:17:59,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 05:17:59,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 05:17:59,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 05:17:59,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 05:17:59,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 05:17:59,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 05:17:59,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 05:17:59,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 05:17:59,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 05:17:59,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 05:17:59,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 05:17:59,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 05:17:59,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 05:17:59,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 05:17:59,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 05:17:59,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 05:17:59,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 05:17:59,370 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 05:17:59,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 05:17:59,371 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 05:17:59,371 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 05:17:59,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 05:17:59,372 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 05:17:59,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 05:17:59,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 05:17:59,373 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 05:17:59,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 05:17:59,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 05:17:59,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 05:17:59,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 05:17:59,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 05:17:59,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 05:17:59,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 05:17:59,375 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 05:17:59,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 05:17:59,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 05:17:59,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 05:17:59,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 05:17:59,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:17:59,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 05:17:59,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 05:17:59,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 05:17:59,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 05:17:59,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 05:17:59,376 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 05:17:59,377 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 05:17:59,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 05:17:59,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2021-12-28 05:17:59,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 05:17:59,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 05:17:59,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 05:17:59,697 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 05:17:59,697 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 05:17:59,698 INFO L432 ainManager$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 [2021-12-28 05:17:59,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e688d216a/f1d5301cc74b4e8eb9eca1d7ed6e9859/FLAG9989a587b [2021-12-28 05:18:00,551 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 05:18:00,552 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 [2021-12-28 05:18:00,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e688d216a/f1d5301cc74b4e8eb9eca1d7ed6e9859/FLAG9989a587b [2021-12-28 05:18:00,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e688d216a/f1d5301cc74b4e8eb9eca1d7ed6e9859 [2021-12-28 05:18:01,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 05:18:01,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 05:18:01,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 05:18:01,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 05:18:01,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 05:18:01,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:18:01" (1/1) ... [2021-12-28 05:18:01,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac089ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:01, skipping insertion in model container [2021-12-28 05:18:01,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:18:01" (1/1) ... [2021-12-28 05:18:01,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 05:18:01,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 05:18:02,777 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] [2021-12-28 05:18:02,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:18:02,865 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 05:18:03,375 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] [2021-12-28 05:18:03,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:18:03,458 INFO L208 MainTranslator]: Completed translation [2021-12-28 05:18:03,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03 WrapperNode [2021-12-28 05:18:03,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 05:18:03,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 05:18:03,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 05:18:03,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 05:18:03,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:03,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:03,932 INFO L137 Inliner]: procedures = 170, calls = 6771, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 16522 [2021-12-28 05:18:03,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 05:18:03,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 05:18:03,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 05:18:03,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 05:18:03,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:03,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:04,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:04,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:04,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:04,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:04,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:04,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 05:18:04,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 05:18:04,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 05:18:04,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 05:18:04,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (1/1) ... [2021-12-28 05:18:04,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:18:04,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:18:04,632 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) [2021-12-28 05:18:04,671 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 [2021-12-28 05:18:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2021-12-28 05:18:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2021-12-28 05:18:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2021-12-28 05:18:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2021-12-28 05:18:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 05:18:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-28 05:18:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-28 05:18:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2021-12-28 05:18:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2021-12-28 05:18:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2021-12-28 05:18:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2021-12-28 05:18:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 05:18:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 05:18:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2021-12-28 05:18:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2021-12-28 05:18:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 05:18:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2021-12-28 05:18:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2021-12-28 05:18:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2021-12-28 05:18:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2021-12-28 05:18:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2021-12-28 05:18:04,695 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2021-12-28 05:18:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2021-12-28 05:18:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2021-12-28 05:18:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 05:18:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 05:18:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2021-12-28 05:18:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2021-12-28 05:18:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2021-12-28 05:18:04,696 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2021-12-28 05:18:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 05:18:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 05:18:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 05:18:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2021-12-28 05:18:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2021-12-28 05:18:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 05:18:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 05:18:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2021-12-28 05:18:04,697 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2021-12-28 05:18:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2021-12-28 05:18:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2021-12-28 05:18:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2021-12-28 05:18:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2021-12-28 05:18:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-12-28 05:18:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-12-28 05:18:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 05:18:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 05:18:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-28 05:18:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-28 05:18:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2021-12-28 05:18:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2021-12-28 05:18:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2021-12-28 05:18:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2021-12-28 05:18:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 05:18:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 05:18:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 05:18:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 05:18:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2021-12-28 05:18:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2021-12-28 05:18:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 05:18:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 05:18:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 05:18:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2021-12-28 05:18:04,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2021-12-28 05:18:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2021-12-28 05:18:04,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2021-12-28 05:18:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2021-12-28 05:18:04,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2021-12-28 05:18:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2021-12-28 05:18:04,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2021-12-28 05:18:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:18:04,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:18:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 05:18:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2021-12-28 05:18:04,703 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2021-12-28 05:18:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2021-12-28 05:18:04,703 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2021-12-28 05:18:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2021-12-28 05:18:04,704 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2021-12-28 05:18:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2021-12-28 05:18:04,704 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2021-12-28 05:18:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2021-12-28 05:18:04,704 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2021-12-28 05:18:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 05:18:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 05:18:04,704 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2021-12-28 05:18:04,705 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2021-12-28 05:18:04,705 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2021-12-28 05:18:04,705 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2021-12-28 05:18:04,705 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2021-12-28 05:18:04,705 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2021-12-28 05:18:04,705 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2021-12-28 05:18:04,706 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2021-12-28 05:18:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 05:18:04,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 05:18:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2021-12-28 05:18:04,706 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2021-12-28 05:18:04,706 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2021-12-28 05:18:04,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2021-12-28 05:18:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 05:18:04,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-28 05:18:04,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-28 05:18:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2021-12-28 05:18:04,708 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2021-12-28 05:18:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 05:18:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2021-12-28 05:18:04,708 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2021-12-28 05:18:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 05:18:04,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 05:18:04,708 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2021-12-28 05:18:04,709 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2021-12-28 05:18:05,639 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 05:18:05,641 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 05:18:15,311 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 05:18:15,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 05:18:15,335 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 05:18:15,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:18:15 BoogieIcfgContainer [2021-12-28 05:18:15,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 05:18:15,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 05:18:15,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 05:18:15,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 05:18:15,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:18:01" (1/3) ... [2021-12-28 05:18:15,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b4c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:18:15, skipping insertion in model container [2021-12-28 05:18:15,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:18:03" (2/3) ... [2021-12-28 05:18:15,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b4c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:18:15, skipping insertion in model container [2021-12-28 05:18:15,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:18:15" (3/3) ... [2021-12-28 05:18:15,353 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 [2021-12-28 05:18:15,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 05:18:15,357 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 05:18:15,422 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 05:18:15,430 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 [2021-12-28 05:18:15,431 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 05:18:15,501 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) [2021-12-28 05:18:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 05:18:15,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:18:15,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:18:15,505 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:18:15,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:18:15,508 INFO L85 PathProgramCache]: Analyzing trace with hash 715822238, now seen corresponding path program 1 times [2021-12-28 05:18:15,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:18:15,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102692136] [2021-12-28 05:18:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:18:15,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:18:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 05:18:15,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:18:15,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102692136] [2021-12-28 05:18:15,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102692136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:18:15,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:18:15,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 05:18:15,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432789026] [2021-12-28 05:18:15,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:18:15,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 05:18:15,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:18:15,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 05:18:15,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 05:18:15,971 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) [2021-12-28 05:18:16,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:18:16,423 INFO L93 Difference]: Finished difference Result 10704 states and 17477 transitions. [2021-12-28 05:18:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 05:18:16,425 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 [2021-12-28 05:18:16,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:18:16,498 INFO L225 Difference]: With dead ends: 10704 [2021-12-28 05:18:16,499 INFO L226 Difference]: Without dead ends: 5381 [2021-12-28 05:18:16,569 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 [2021-12-28 05:18:16,572 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 [2021-12-28 05:18:16,573 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] [2021-12-28 05:18:16,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2021-12-28 05:18:17,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5379. [2021-12-28 05:18:17,604 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) [2021-12-28 05:18:17,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 8745 transitions. [2021-12-28 05:18:17,648 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 8745 transitions. Word has length 8 [2021-12-28 05:18:17,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:18:17,649 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 8745 transitions. [2021-12-28 05:18:17,649 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) [2021-12-28 05:18:17,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 8745 transitions. [2021-12-28 05:18:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-28 05:18:17,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:18:17,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:18:17,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 05:18:17,652 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:18:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:18:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash 713153290, now seen corresponding path program 1 times [2021-12-28 05:18:17,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:18:17,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840537930] [2021-12-28 05:18:17,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:18:17,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:18:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 05:18:17,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:18:17,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840537930] [2021-12-28 05:18:17,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840537930] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:18:17,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:18:17,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 05:18:17,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900161918] [2021-12-28 05:18:17,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:18:17,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 05:18:17,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:18:17,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 05:18:17,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 05:18:17,923 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) [2021-12-28 05:18:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:18:18,171 INFO L93 Difference]: Finished difference Result 5381 states and 8746 transitions. [2021-12-28 05:18:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 05:18:18,171 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 [2021-12-28 05:18:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:18:18,215 INFO L225 Difference]: With dead ends: 5381 [2021-12-28 05:18:18,215 INFO L226 Difference]: Without dead ends: 5378 [2021-12-28 05:18:18,223 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 [2021-12-28 05:18:18,224 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 [2021-12-28 05:18:18,224 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] [2021-12-28 05:18:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2021-12-28 05:18:18,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2021-12-28 05:18:18,871 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) [2021-12-28 05:18:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8743 transitions. [2021-12-28 05:18:18,921 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8743 transitions. Word has length 9 [2021-12-28 05:18:18,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:18:18,922 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 8743 transitions. [2021-12-28 05:18:18,922 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) [2021-12-28 05:18:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8743 transitions. [2021-12-28 05:18:18,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-28 05:18:18,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:18:18,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:18:18,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 05:18:18,923 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:18:18,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:18:18,924 INFO L85 PathProgramCache]: Analyzing trace with hash 630420769, now seen corresponding path program 1 times [2021-12-28 05:18:18,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:18:18,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364044659] [2021-12-28 05:18:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:18:18,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:18:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 05:18:19,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:18:19,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364044659] [2021-12-28 05:18:19,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364044659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:18:19,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:18:19,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 05:18:19,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793805096] [2021-12-28 05:18:19,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:18:19,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 05:18:19,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:18:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 05:18:19,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 05:18:19,151 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) [2021-12-28 05:18:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:18:19,342 INFO L93 Difference]: Finished difference Result 5380 states and 8744 transitions. [2021-12-28 05:18:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 05:18:19,345 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 [2021-12-28 05:18:19,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:18:19,383 INFO L225 Difference]: With dead ends: 5380 [2021-12-28 05:18:19,384 INFO L226 Difference]: Without dead ends: 5377 [2021-12-28 05:18:19,391 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 [2021-12-28 05:18:19,393 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 [2021-12-28 05:18:19,394 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] [2021-12-28 05:18:19,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2021-12-28 05:18:20,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5377. [2021-12-28 05:18:20,049 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) [2021-12-28 05:18:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8741 transitions. [2021-12-28 05:18:20,087 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 8741 transitions. Word has length 10 [2021-12-28 05:18:20,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:18:20,087 INFO L470 AbstractCegarLoop]: Abstraction has 5377 states and 8741 transitions. [2021-12-28 05:18:20,088 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) [2021-12-28 05:18:20,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 8741 transitions. [2021-12-28 05:18:20,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-28 05:18:20,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:18:20,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:18:20,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 05:18:20,090 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:18:20,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:18:20,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1934282515, now seen corresponding path program 1 times [2021-12-28 05:18:20,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:18:20,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398136649] [2021-12-28 05:18:20,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:18:20,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:18:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 05:18:20,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:18:20,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398136649] [2021-12-28 05:18:20,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398136649] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:18:20,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:18:20,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 05:18:20,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432503258] [2021-12-28 05:18:20,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:18:20,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 05:18:20,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:18:20,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 05:18:20,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 05:18:20,310 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) [2021-12-28 05:18:20,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:18:20,718 INFO L93 Difference]: Finished difference Result 16109 states and 26329 transitions. [2021-12-28 05:18:20,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 05:18:20,718 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 [2021-12-28 05:18:20,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:18:20,800 INFO L225 Difference]: With dead ends: 16109 [2021-12-28 05:18:20,800 INFO L226 Difference]: Without dead ends: 10731 [2021-12-28 05:18:20,860 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 [2021-12-28 05:18:20,861 INFO L933 BasicCegarLoop]: 10042 mSDtfsCounter, 8663 mSDsluCounter, 8663 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 05:18:20,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8663 Valid, 18705 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 05:18:20,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2021-12-28 05:18:21,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10727. [2021-12-28 05:18:21,933 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) [2021-12-28 05:18:22,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 17530 transitions. [2021-12-28 05:18:22,004 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 17530 transitions. Word has length 11 [2021-12-28 05:18:22,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:18:22,004 INFO L470 AbstractCegarLoop]: Abstraction has 10727 states and 17530 transitions. [2021-12-28 05:18:22,004 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) [2021-12-28 05:18:22,004 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 17530 transitions. [2021-12-28 05:18:22,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 05:18:22,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:18:22,011 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] [2021-12-28 05:18:22,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 05:18:22,012 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:18:22,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:18:22,012 INFO L85 PathProgramCache]: Analyzing trace with hash -724196731, now seen corresponding path program 1 times [2021-12-28 05:18:22,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:18:22,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183172927] [2021-12-28 05:18:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:18:22,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:18:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:22,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 05:18:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 05:18:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:22,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:18:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 05:18:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:18:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:18:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 05:18:22,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:18:22,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183172927] [2021-12-28 05:18:22,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183172927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:18:22,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:18:22,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:18:22,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772515520] [2021-12-28 05:18:22,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:18:22,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:18:22,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:18:22,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:18:22,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:18:22,559 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) [2021-12-28 05:18:30,991 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 [] [2021-12-28 05:18:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:18:31,413 INFO L93 Difference]: Finished difference Result 21759 states and 35777 transitions. [2021-12-28 05:18:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 05:18:31,413 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 [2021-12-28 05:18:31,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:18:31,489 INFO L225 Difference]: With dead ends: 21759 [2021-12-28 05:18:31,489 INFO L226 Difference]: Without dead ends: 11035 [2021-12-28 05:18:31,576 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 [2021-12-28 05:18:31,577 INFO L933 BasicCegarLoop]: 8504 mSDtfsCounter, 660 mSDsluCounter, 30207 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 1369 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 38711 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1369 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:18:31,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [713 Valid, 38711 Invalid, 4263 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1369 Valid, 2893 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-12-28 05:18:31,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2021-12-28 05:18:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 10875. [2021-12-28 05:18:32,980 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) [2021-12-28 05:18:33,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10875 states to 10875 states and 17774 transitions. [2021-12-28 05:18:33,088 INFO L78 Accepts]: Start accepts. Automaton has 10875 states and 17774 transitions. Word has length 69 [2021-12-28 05:18:33,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:18:33,088 INFO L470 AbstractCegarLoop]: Abstraction has 10875 states and 17774 transitions. [2021-12-28 05:18:33,088 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) [2021-12-28 05:18:33,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10875 states and 17774 transitions. [2021-12-28 05:18:33,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-28 05:18:33,094 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:18:33,094 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] [2021-12-28 05:18:33,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 05:18:33,095 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:18:33,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:18:33,095 INFO L85 PathProgramCache]: Analyzing trace with hash 412085355, now seen corresponding path program 1 times [2021-12-28 05:18:33,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:18:33,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221417220] [2021-12-28 05:18:33,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:18:33,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:18:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:33,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 05:18:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:33,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:18:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:18:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:34,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:18:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:34,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 05:18:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:18:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:34,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:18:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:18:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 05:18:34,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:18:34,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221417220] [2021-12-28 05:18:34,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221417220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:18:34,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:18:34,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 05:18:34,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26846067] [2021-12-28 05:18:34,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:18:34,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 05:18:34,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:18:34,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 05:18:34,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-28 05:18:34,352 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) [2021-12-28 05:18:51,558 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 [] [2021-12-28 05:18:53,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:18:55,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:18:57,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:19:00,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []