./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 19:05:33,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 19:05:33,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 19:05:33,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 19:05:33,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 19:05:33,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 19:05:33,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 19:05:33,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 19:05:33,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 19:05:33,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 19:05:33,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 19:05:33,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 19:05:33,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 19:05:33,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 19:05:33,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 19:05:33,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 19:05:33,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 19:05:33,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 19:05:33,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 19:05:33,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 19:05:33,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 19:05:33,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 19:05:33,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 19:05:33,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 19:05:33,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 19:05:33,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 19:05:33,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 19:05:33,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 19:05:33,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 19:05:33,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 19:05:33,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 19:05:33,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 19:05:33,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 19:05:33,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 19:05:33,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 19:05:33,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 19:05:33,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 19:05:33,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 19:05:33,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 19:05:33,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 19:05:33,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 19:05:33,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 19:05:33,743 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 19:05:33,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 19:05:33,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 19:05:33,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 19:05:33,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 19:05:33,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 19:05:33,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 19:05:33,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 19:05:33,749 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 19:05:33,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 19:05:33,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 19:05:33,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 19:05:33,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 19:05:33,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 19:05:33,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 19:05:33,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 19:05:33,750 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 19:05:33,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 19:05:33,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 19:05:33,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 19:05:33,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 19:05:33,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:05:33,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 19:05:33,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 19:05:33,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 19:05:33,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 19:05:33,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 19:05:33,753 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 19:05:33,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 19:05:33,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 19:05:33,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 19:05:33,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2021-12-14 19:05:33,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 19:05:33,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 19:05:33,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 19:05:33,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 19:05:33,951 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 19:05:33,952 INFO L432 ainManager$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 [2021-12-14 19:05:34,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bdef399/a227b43991964d249d28b39c11e191b0/FLAGa63e71266 [2021-12-14 19:05:34,680 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 19:05:34,680 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 [2021-12-14 19:05:34,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bdef399/a227b43991964d249d28b39c11e191b0/FLAGa63e71266 [2021-12-14 19:05:35,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bdef399/a227b43991964d249d28b39c11e191b0 [2021-12-14 19:05:35,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 19:05:35,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 19:05:35,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 19:05:35,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 19:05:35,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 19:05:35,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:05:35" (1/1) ... [2021-12-14 19:05:35,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a16041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:35, skipping insertion in model container [2021-12-14 19:05:35,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:05:35" (1/1) ... [2021-12-14 19:05:35,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 19:05:35,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 19:05:36,741 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] [2021-12-14 19:05:36,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:05:36,844 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 19:05:37,333 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] [2021-12-14 19:05:37,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:05:37,459 INFO L208 MainTranslator]: Completed translation [2021-12-14 19:05:37,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37 WrapperNode [2021-12-14 19:05:37,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 19:05:37,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 19:05:37,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 19:05:37,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 19:05:37,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:37,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:37,886 INFO L137 Inliner]: procedures = 170, calls = 6771, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 16522 [2021-12-14 19:05:37,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 19:05:37,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 19:05:37,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 19:05:37,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 19:05:37,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:37,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:38,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:38,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:38,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:38,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:38,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:38,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 19:05:38,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 19:05:38,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 19:05:38,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 19:05:38,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (1/1) ... [2021-12-14 19:05:38,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:05:38,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 19:05:38,520 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) [2021-12-14 19:05:38,526 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 [2021-12-14 19:05:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2021-12-14 19:05:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2021-12-14 19:05:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2021-12-14 19:05:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2021-12-14 19:05:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 19:05:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 19:05:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 19:05:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2021-12-14 19:05:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2021-12-14 19:05:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2021-12-14 19:05:38,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2021-12-14 19:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 19:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 19:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2021-12-14 19:05:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2021-12-14 19:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 19:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2021-12-14 19:05:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2021-12-14 19:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2021-12-14 19:05:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2021-12-14 19:05:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2021-12-14 19:05:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2021-12-14 19:05:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2021-12-14 19:05:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2021-12-14 19:05:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 19:05:38,560 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 19:05:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2021-12-14 19:05:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2021-12-14 19:05:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2021-12-14 19:05:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2021-12-14 19:05:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 19:05:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 19:05:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 19:05:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2021-12-14 19:05:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2021-12-14 19:05:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 19:05:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 19:05:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2021-12-14 19:05:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2021-12-14 19:05:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2021-12-14 19:05:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2021-12-14 19:05:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2021-12-14 19:05:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2021-12-14 19:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-12-14 19:05:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-12-14 19:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 19:05:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 19:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-14 19:05:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-14 19:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2021-12-14 19:05:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2021-12-14 19:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2021-12-14 19:05:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2021-12-14 19:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 19:05:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 19:05:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 19:05:38,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 19:05:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2021-12-14 19:05:38,566 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2021-12-14 19:05:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 19:05:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 19:05:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 19:05:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2021-12-14 19:05:38,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2021-12-14 19:05:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2021-12-14 19:05:38,567 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2021-12-14 19:05:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2021-12-14 19:05:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2021-12-14 19:05:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2021-12-14 19:05:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2021-12-14 19:05:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 19:05:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 19:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 19:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2021-12-14 19:05:38,569 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2021-12-14 19:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2021-12-14 19:05:38,569 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2021-12-14 19:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2021-12-14 19:05:38,569 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2021-12-14 19:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2021-12-14 19:05:38,570 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2021-12-14 19:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2021-12-14 19:05:38,570 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2021-12-14 19:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 19:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 19:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2021-12-14 19:05:38,570 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2021-12-14 19:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2021-12-14 19:05:38,570 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2021-12-14 19:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2021-12-14 19:05:38,571 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2021-12-14 19:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2021-12-14 19:05:38,571 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2021-12-14 19:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 19:05:38,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 19:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2021-12-14 19:05:38,572 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2021-12-14 19:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2021-12-14 19:05:38,573 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2021-12-14 19:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 19:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-14 19:05:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-14 19:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2021-12-14 19:05:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2021-12-14 19:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 19:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2021-12-14 19:05:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2021-12-14 19:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 19:05:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 19:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2021-12-14 19:05:38,575 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2021-12-14 19:05:39,427 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 19:05:39,429 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 19:05:48,611 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 19:05:48,656 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 19:05:48,656 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 19:05:48,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:05:48 BoogieIcfgContainer [2021-12-14 19:05:48,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 19:05:48,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 19:05:48,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 19:05:48,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 19:05:48,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:05:35" (1/3) ... [2021-12-14 19:05:48,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486de812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:05:48, skipping insertion in model container [2021-12-14 19:05:48,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:05:37" (2/3) ... [2021-12-14 19:05:48,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486de812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:05:48, skipping insertion in model container [2021-12-14 19:05:48,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:05:48" (3/3) ... [2021-12-14 19:05:48,675 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 [2021-12-14 19:05:48,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 19:05:48,684 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 19:05:48,734 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 19:05:48,740 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 [2021-12-14 19:05:48,741 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 19:05:48,811 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) [2021-12-14 19:05:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-14 19:05:48,814 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:48,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:05:48,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:05:48,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash 715822238, now seen corresponding path program 1 times [2021-12-14 19:05:48,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:48,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437322522] [2021-12-14 19:05:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:48,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 19:05:49,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:49,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437322522] [2021-12-14 19:05:49,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437322522] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:49,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:49,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 19:05:49,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750998567] [2021-12-14 19:05:49,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:49,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 19:05:49,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:49,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 19:05:49,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 19:05:49,323 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) [2021-12-14 19:05:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:49,679 INFO L93 Difference]: Finished difference Result 10704 states and 17477 transitions. [2021-12-14 19:05:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 19:05:49,681 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 [2021-12-14 19:05:49,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:49,742 INFO L225 Difference]: With dead ends: 10704 [2021-12-14 19:05:49,742 INFO L226 Difference]: Without dead ends: 5381 [2021-12-14 19:05:49,811 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 [2021-12-14 19:05:49,814 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 [2021-12-14 19:05:49,815 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] [2021-12-14 19:05:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2021-12-14 19:05:50,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5379. [2021-12-14 19:05:50,796 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) [2021-12-14 19:05:50,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 8745 transitions. [2021-12-14 19:05:50,838 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 8745 transitions. Word has length 8 [2021-12-14 19:05:50,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:50,838 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 8745 transitions. [2021-12-14 19:05:50,839 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) [2021-12-14 19:05:50,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 8745 transitions. [2021-12-14 19:05:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-14 19:05:50,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:50,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:05:50,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 19:05:50,840 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:05:50,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:50,841 INFO L85 PathProgramCache]: Analyzing trace with hash 713153290, now seen corresponding path program 1 times [2021-12-14 19:05:50,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:50,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410402849] [2021-12-14 19:05:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:50,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:51,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 19:05:51,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:51,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410402849] [2021-12-14 19:05:51,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410402849] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:51,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:51,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 19:05:51,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171297966] [2021-12-14 19:05:51,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:51,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 19:05:51,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:51,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 19:05:51,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 19:05:51,101 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) [2021-12-14 19:05:51,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:51,326 INFO L93 Difference]: Finished difference Result 5381 states and 8746 transitions. [2021-12-14 19:05:51,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 19:05:51,327 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 [2021-12-14 19:05:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:51,367 INFO L225 Difference]: With dead ends: 5381 [2021-12-14 19:05:51,367 INFO L226 Difference]: Without dead ends: 5378 [2021-12-14 19:05:51,377 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 [2021-12-14 19:05:51,379 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 [2021-12-14 19:05:51,380 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] [2021-12-14 19:05:51,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2021-12-14 19:05:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2021-12-14 19:05:52,165 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) [2021-12-14 19:05:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8743 transitions. [2021-12-14 19:05:52,202 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8743 transitions. Word has length 9 [2021-12-14 19:05:52,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:52,202 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 8743 transitions. [2021-12-14 19:05:52,203 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) [2021-12-14 19:05:52,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8743 transitions. [2021-12-14 19:05:52,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-14 19:05:52,204 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:52,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:05:52,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 19:05:52,204 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:05:52,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:52,205 INFO L85 PathProgramCache]: Analyzing trace with hash 630420769, now seen corresponding path program 1 times [2021-12-14 19:05:52,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:52,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645173896] [2021-12-14 19:05:52,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:52,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 19:05:52,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:52,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645173896] [2021-12-14 19:05:52,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645173896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:52,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:52,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 19:05:52,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423767035] [2021-12-14 19:05:52,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:52,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 19:05:52,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:52,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 19:05:52,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 19:05:52,511 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) [2021-12-14 19:05:52,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:52,702 INFO L93 Difference]: Finished difference Result 5380 states and 8744 transitions. [2021-12-14 19:05:52,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 19:05:52,703 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 [2021-12-14 19:05:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:52,732 INFO L225 Difference]: With dead ends: 5380 [2021-12-14 19:05:52,733 INFO L226 Difference]: Without dead ends: 5377 [2021-12-14 19:05:52,737 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 [2021-12-14 19:05:52,738 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 [2021-12-14 19:05:52,738 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] [2021-12-14 19:05:52,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2021-12-14 19:05:53,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5377. [2021-12-14 19:05:53,291 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) [2021-12-14 19:05:53,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8741 transitions. [2021-12-14 19:05:53,320 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 8741 transitions. Word has length 10 [2021-12-14 19:05:53,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:53,320 INFO L470 AbstractCegarLoop]: Abstraction has 5377 states and 8741 transitions. [2021-12-14 19:05:53,321 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) [2021-12-14 19:05:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 8741 transitions. [2021-12-14 19:05:53,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-14 19:05:53,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:53,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 19:05:53,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 19:05:53,322 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:05:53,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:53,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1934282515, now seen corresponding path program 1 times [2021-12-14 19:05:53,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:53,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395133911] [2021-12-14 19:05:53,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:53,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 19:05:53,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:53,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395133911] [2021-12-14 19:05:53,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395133911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:53,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:53,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 19:05:53,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055733271] [2021-12-14 19:05:53,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:53,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 19:05:53,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:53,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 19:05:53,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 19:05:53,499 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) [2021-12-14 19:05:53,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:05:53,922 INFO L93 Difference]: Finished difference Result 16109 states and 26329 transitions. [2021-12-14 19:05:53,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 19:05:53,923 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 [2021-12-14 19:05:53,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:05:53,991 INFO L225 Difference]: With dead ends: 16109 [2021-12-14 19:05:53,991 INFO L226 Difference]: Without dead ends: 10731 [2021-12-14 19:05:54,061 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 [2021-12-14 19:05:54,062 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 [2021-12-14 19:05:54,063 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] [2021-12-14 19:05:54,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2021-12-14 19:05:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10727. [2021-12-14 19:05:55,078 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) [2021-12-14 19:05:55,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 17530 transitions. [2021-12-14 19:05:55,156 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 17530 transitions. Word has length 11 [2021-12-14 19:05:55,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:05:55,157 INFO L470 AbstractCegarLoop]: Abstraction has 10727 states and 17530 transitions. [2021-12-14 19:05:55,157 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) [2021-12-14 19:05:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 17530 transitions. [2021-12-14 19:05:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 19:05:55,171 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:05:55,171 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] [2021-12-14 19:05:55,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 19:05:55,171 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:05:55,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:05:55,172 INFO L85 PathProgramCache]: Analyzing trace with hash -724196731, now seen corresponding path program 1 times [2021-12-14 19:05:55,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:05:55,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434679699] [2021-12-14 19:05:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:05:55,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:05:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 19:05:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 19:05:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:55,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:05:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:55,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 19:05:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:05:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:55,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:05:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:05:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-14 19:05:55,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:05:55,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434679699] [2021-12-14 19:05:55,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434679699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:05:55,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:05:55,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:05:55,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965317696] [2021-12-14 19:05:55,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:05:55,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:05:55,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:05:55,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:05:55,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:05:55,579 INFO L87 Difference]: Start difference. First operand 10727 states and 17530 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 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) [2021-12-14 19:06:02,471 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 [] [2021-12-14 19:06:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:06:02,853 INFO L93 Difference]: Finished difference Result 21692 states and 35546 transitions. [2021-12-14 19:06:02,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:06:02,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 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 [2021-12-14 19:06:02,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:06:02,935 INFO L225 Difference]: With dead ends: 21692 [2021-12-14 19:06:02,935 INFO L226 Difference]: Without dead ends: 10968 [2021-12-14 19:06:03,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:06:03,184 INFO L933 BasicCegarLoop]: 8525 mSDtfsCounter, 490 mSDsluCounter, 22279 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 1343 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 30804 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1343 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-14 19:06:03,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 30804 Invalid, 3606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1343 Valid, 2262 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-12-14 19:06:03,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2021-12-14 19:06:04,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 10840. [2021-12-14 19:06:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10840 states, 8137 states have (on average 1.5279587071402236) internal successors, (12433), 8149 states have internal predecessors, (12433), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 108 states have return successors, (2678), 2588 states have call predecessors, (2678), 2588 states have call successors, (2678) [2021-12-14 19:06:04,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10840 states to 10840 states and 17705 transitions. [2021-12-14 19:06:04,466 INFO L78 Accepts]: Start accepts. Automaton has 10840 states and 17705 transitions. Word has length 69 [2021-12-14 19:06:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:06:04,466 INFO L470 AbstractCegarLoop]: Abstraction has 10840 states and 17705 transitions. [2021-12-14 19:06:04,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 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) [2021-12-14 19:06:04,467 INFO L276 IsEmpty]: Start isEmpty. Operand 10840 states and 17705 transitions. [2021-12-14 19:06:04,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-14 19:06:04,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:06:04,473 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] [2021-12-14 19:06:04,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 19:06:04,473 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:06:04,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:06:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash 412085355, now seen corresponding path program 1 times [2021-12-14 19:06:04,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:06:04,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310664807] [2021-12-14 19:06:04,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:06:04,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:06:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:06:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 19:06:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:06:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 19:06:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:06:05,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 19:06:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:06:05,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:06:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:06:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 19:06:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:06:05,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:06:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:06:05,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:06:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:06:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-14 19:06:05,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:06:05,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310664807] [2021-12-14 19:06:05,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310664807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:06:05,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:06:05,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-14 19:06:05,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47749633] [2021-12-14 19:06:05,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:06:05,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 19:06:05,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:06:05,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 19:06:05,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-12-14 19:06:05,653 INFO L87 Difference]: Start difference. First operand 10840 states and 17705 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 9 states have internal predecessors, (58), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2021-12-14 19:06:18,157 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 [] [2021-12-14 19:06:20,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-14 19:06:22,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-14 19:06:24,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []