./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.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 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 13:42:39,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 13:42:39,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 13:42:39,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 13:42:39,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 13:42:39,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 13:42:39,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 13:42:39,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 13:42:39,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 13:42:39,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 13:42:39,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 13:42:39,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 13:42:39,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 13:42:39,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 13:42:39,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 13:42:39,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 13:42:39,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 13:42:39,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 13:42:39,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 13:42:39,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 13:42:39,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 13:42:39,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 13:42:39,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 13:42:39,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 13:42:39,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 13:42:39,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 13:42:39,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 13:42:39,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 13:42:39,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 13:42:39,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 13:42:39,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 13:42:39,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 13:42:39,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 13:42:39,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 13:42:39,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 13:42:39,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 13:42:39,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 13:42:39,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 13:42:39,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 13:42:39,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 13:42:39,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 13:42:39,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 13:42:39,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 13:42:39,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 13:42:39,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 13:42:39,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 13:42:39,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 13:42:39,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 13:42:39,981 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 13:42:39,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 13:42:39,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 13:42:39,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 13:42:39,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 13:42:39,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 13:42:39,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 13:42:39,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 13:42:39,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 13:42:39,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 13:42:39,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 13:42:39,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 13:42:39,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 13:42:39,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:42:39,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 13:42:39,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 13:42:39,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 13:42:39,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 13:42:39,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 13:42:39,985 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 13:42:39,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 13:42:39,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 13:42:39,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 13:42:39,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 [2021-11-06 13:42:40,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 13:42:40,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 13:42:40,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 13:42:40,208 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 13:42:40,210 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 13:42:40,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2021-11-06 13:42:40,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86d3a9ee/cc24dde3b2c244c0a8ae4d8a4da19b54/FLAG77daa6a38 [2021-11-06 13:42:40,943 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 13:42:40,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2021-11-06 13:42:40,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86d3a9ee/cc24dde3b2c244c0a8ae4d8a4da19b54/FLAG77daa6a38 [2021-11-06 13:42:41,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86d3a9ee/cc24dde3b2c244c0a8ae4d8a4da19b54 [2021-11-06 13:42:41,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 13:42:41,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 13:42:41,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 13:42:41,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 13:42:41,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 13:42:41,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:42:41" (1/1) ... [2021-11-06 13:42:41,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a600313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:41, skipping insertion in model container [2021-11-06 13:42:41,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:42:41" (1/1) ... [2021-11-06 13:42:41,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 13:42:41,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 13:42:42,971 WARN L228 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2021-11-06 13:42:43,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:42:43,160 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 13:42:43,410 WARN L228 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2021-11-06 13:42:43,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:42:43,480 INFO L208 MainTranslator]: Completed translation [2021-11-06 13:42:43,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43 WrapperNode [2021-11-06 13:42:43,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 13:42:43,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 13:42:43,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 13:42:43,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 13:42:43,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:43,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:43,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 13:42:43,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 13:42:43,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 13:42:43,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 13:42:43,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:43,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:43,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:43,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:44,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:44,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:44,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:44,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 13:42:44,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 13:42:44,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 13:42:44,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 13:42:44,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (1/1) ... [2021-11-06 13:42:44,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:42:44,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:42:44,531 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) [2021-11-06 13:42:44,601 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 [2021-11-06 13:42:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_register [2021-11-06 13:42:44,647 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_register [2021-11-06 13:42:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-06 13:42:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 13:42:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 13:42:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 13:42:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 13:42:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 13:42:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 13:42:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 13:42:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure node_remove [2021-11-06 13:42:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure node_remove [2021-11-06 13:42:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 13:42:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_unregister [2021-11-06 13:42:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_unregister [2021-11-06 13:42:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 13:42:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 13:42:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 13:42:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 13:42:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 13:42:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 13:42:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 13:42:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure node_probe [2021-11-06 13:42:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure node_probe [2021-11-06 13:42:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 13:42:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 13:42:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 13:43:51,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 13:43:51,511 INFO L299 CfgBuilder]: Removed 2901 assume(true) statements. [2021-11-06 13:43:51,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:43:51 BoogieIcfgContainer [2021-11-06 13:43:51,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 13:43:51,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 13:43:51,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 13:43:51,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 13:43:51,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:42:41" (1/3) ... [2021-11-06 13:43:51,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c89e647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:43:51, skipping insertion in model container [2021-11-06 13:43:51,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:42:43" (2/3) ... [2021-11-06 13:43:51,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c89e647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:43:51, skipping insertion in model container [2021-11-06 13:43:51,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:43:51" (3/3) ... [2021-11-06 13:43:51,523 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2021-11-06 13:43:51,527 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 13:43:51,527 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 83 error locations. [2021-11-06 13:43:51,578 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 13:43:51,584 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 [2021-11-06 13:43:51,584 INFO L340 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2021-11-06 13:43:51,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 4974 states, 4877 states have (on average 1.4853393479598114) internal successors, (7244), 4960 states have internal predecessors, (7244), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-06 13:43:51,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-06 13:43:51,649 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:51,649 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:51,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:43:51,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash -309315328, now seen corresponding path program 1 times [2021-11-06 13:43:51,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:51,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773143886] [2021-11-06 13:43:51,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:51,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:52,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:52,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773143886] [2021-11-06 13:43:52,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773143886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:52,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:52,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:52,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889873325] [2021-11-06 13:43:52,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:52,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:52,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:52,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:52,073 INFO L87 Difference]: Start difference. First operand has 4974 states, 4877 states have (on average 1.4853393479598114) internal successors, (7244), 4960 states have internal predecessors, (7244), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:43:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:54,528 INFO L93 Difference]: Finished difference Result 14887 states and 21753 transitions. [2021-11-06 13:43:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:54,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-06 13:43:54,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:54,578 INFO L225 Difference]: With dead ends: 14887 [2021-11-06 13:43:54,579 INFO L226 Difference]: Without dead ends: 9910 [2021-11-06 13:43:54,607 INFO L786 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 [2021-11-06 13:43:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9910 states. [2021-11-06 13:43:55,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9910 to 9754. [2021-11-06 13:43:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9754 states, 9645 states have (on average 1.470191809227579) internal successors, (14180), 9727 states have internal predecessors, (14180), 16 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-06 13:43:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9754 states to 9754 states and 14212 transitions. [2021-11-06 13:43:55,059 INFO L78 Accepts]: Start accepts. Automaton has 9754 states and 14212 transitions. Word has length 14 [2021-11-06 13:43:55,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:55,060 INFO L470 AbstractCegarLoop]: Abstraction has 9754 states and 14212 transitions. [2021-11-06 13:43:55,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:43:55,061 INFO L276 IsEmpty]: Start isEmpty. Operand 9754 states and 14212 transitions. [2021-11-06 13:43:55,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-06 13:43:55,065 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:55,065 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:55,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 13:43:55,066 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:43:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2070326368, now seen corresponding path program 1 times [2021-11-06 13:43:55,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:55,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063434937] [2021-11-06 13:43:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:55,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:55,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:55,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063434937] [2021-11-06 13:43:55,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063434937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:55,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:55,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:55,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894850146] [2021-11-06 13:43:55,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:55,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:55,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:55,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:55,192 INFO L87 Difference]: Start difference. First operand 9754 states and 14212 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:43:55,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:55,488 INFO L93 Difference]: Finished difference Result 27276 states and 39708 transitions. [2021-11-06 13:43:55,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:55,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-06 13:43:55,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:55,553 INFO L225 Difference]: With dead ends: 27276 [2021-11-06 13:43:55,553 INFO L226 Difference]: Without dead ends: 17525 [2021-11-06 13:43:55,574 INFO L786 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 [2021-11-06 13:43:55,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17525 states. [2021-11-06 13:43:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17525 to 17388. [2021-11-06 13:43:55,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17388 states, 17253 states have (on average 1.4697154118124385) internal successors, (25357), 17335 states have internal predecessors, (25357), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-06 13:43:55,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17388 states to 17388 states and 25421 transitions. [2021-11-06 13:43:55,961 INFO L78 Accepts]: Start accepts. Automaton has 17388 states and 25421 transitions. Word has length 14 [2021-11-06 13:43:55,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:55,961 INFO L470 AbstractCegarLoop]: Abstraction has 17388 states and 25421 transitions. [2021-11-06 13:43:55,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:43:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 17388 states and 25421 transitions. [2021-11-06 13:43:55,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 13:43:55,963 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:55,963 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:55,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 13:43:55,963 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:43:55,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:55,964 INFO L85 PathProgramCache]: Analyzing trace with hash 805360743, now seen corresponding path program 1 times [2021-11-06 13:43:55,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:55,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981517627] [2021-11-06 13:43:55,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:55,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:56,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:56,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:56,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981517627] [2021-11-06 13:43:56,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981517627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:56,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:56,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:56,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674611718] [2021-11-06 13:43:56,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:56,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:56,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:56,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:56,065 INFO L87 Difference]: Start difference. First operand 17388 states and 25421 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:43:58,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:58,551 INFO L93 Difference]: Finished difference Result 17388 states and 25421 transitions. [2021-11-06 13:43:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:58,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-06 13:43:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:58,594 INFO L225 Difference]: With dead ends: 17388 [2021-11-06 13:43:58,594 INFO L226 Difference]: Without dead ends: 17312 [2021-11-06 13:43:58,608 INFO L786 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 [2021-11-06 13:43:58,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17312 states. [2021-11-06 13:43:58,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17312 to 17312. [2021-11-06 13:43:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17312 states, 17215 states have (on average 1.4631426081905314) internal successors, (25188), 17259 states have internal predecessors, (25188), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-06 13:43:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17312 states to 17312 states and 25252 transitions. [2021-11-06 13:43:59,051 INFO L78 Accepts]: Start accepts. Automaton has 17312 states and 25252 transitions. Word has length 17 [2021-11-06 13:43:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:59,052 INFO L470 AbstractCegarLoop]: Abstraction has 17312 states and 25252 transitions. [2021-11-06 13:43:59,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:43:59,052 INFO L276 IsEmpty]: Start isEmpty. Operand 17312 states and 25252 transitions. [2021-11-06 13:43:59,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-06 13:43:59,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:59,055 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:59,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 13:43:59,056 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:43:59,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:59,057 INFO L85 PathProgramCache]: Analyzing trace with hash -803608067, now seen corresponding path program 1 times [2021-11-06 13:43:59,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:59,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313178617] [2021-11-06 13:43:59,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:59,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:59,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:59,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313178617] [2021-11-06 13:43:59,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313178617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:59,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:59,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:59,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693565524] [2021-11-06 13:43:59,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:59,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:59,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:59,190 INFO L87 Difference]: Start difference. First operand 17312 states and 25252 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:01,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:01,450 INFO L93 Difference]: Finished difference Result 17312 states and 25252 transitions. [2021-11-06 13:44:01,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:01,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-06 13:44:01,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:01,484 INFO L225 Difference]: With dead ends: 17312 [2021-11-06 13:44:01,484 INFO L226 Difference]: Without dead ends: 17310 [2021-11-06 13:44:01,495 INFO L786 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 [2021-11-06 13:44:01,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17310 states. [2021-11-06 13:44:01,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17310 to 17310. [2021-11-06 13:44:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17310 states, 17214 states have (on average 1.463111420936447) internal successors, (25186), 17257 states have internal predecessors, (25186), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-06 13:44:01,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17310 states to 17310 states and 25250 transitions. [2021-11-06 13:44:01,977 INFO L78 Accepts]: Start accepts. Automaton has 17310 states and 25250 transitions. Word has length 18 [2021-11-06 13:44:01,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:01,977 INFO L470 AbstractCegarLoop]: Abstraction has 17310 states and 25250 transitions. [2021-11-06 13:44:01,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:01,978 INFO L276 IsEmpty]: Start isEmpty. Operand 17310 states and 25250 transitions. [2021-11-06 13:44:01,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-06 13:44:01,979 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:01,979 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:01,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 13:44:01,979 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:01,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:01,980 INFO L85 PathProgramCache]: Analyzing trace with hash 857966385, now seen corresponding path program 1 times [2021-11-06 13:44:01,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:01,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779029339] [2021-11-06 13:44:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:01,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:02,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:02,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779029339] [2021-11-06 13:44:02,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779029339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:02,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:02,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:02,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515044711] [2021-11-06 13:44:02,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:02,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:02,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:02,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:02,105 INFO L87 Difference]: Start difference. First operand 17310 states and 25250 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:04,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:04,768 INFO L93 Difference]: Finished difference Result 51872 states and 75816 transitions. [2021-11-06 13:44:04,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:04,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-06 13:44:04,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:04,873 INFO L225 Difference]: With dead ends: 51872 [2021-11-06 13:44:04,873 INFO L226 Difference]: Without dead ends: 34565 [2021-11-06 13:44:04,936 INFO L786 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 [2021-11-06 13:44:04,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34565 states. [2021-11-06 13:44:05,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34565 to 33431. [2021-11-06 13:44:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33431 states, 33283 states have (on average 1.4632094462638585) internal successors, (48700), 33326 states have internal predecessors, (48700), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (128), 64 states have call predecessors, (128), 64 states have call successors, (128) [2021-11-06 13:44:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33431 states to 33431 states and 48892 transitions. [2021-11-06 13:44:05,728 INFO L78 Accepts]: Start accepts. Automaton has 33431 states and 48892 transitions. Word has length 19 [2021-11-06 13:44:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:05,728 INFO L470 AbstractCegarLoop]: Abstraction has 33431 states and 48892 transitions. [2021-11-06 13:44:05,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 33431 states and 48892 transitions. [2021-11-06 13:44:05,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-06 13:44:05,732 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:05,732 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:05,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 13:44:05,732 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:05,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:05,733 INFO L85 PathProgramCache]: Analyzing trace with hash 827166855, now seen corresponding path program 1 times [2021-11-06 13:44:05,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:05,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564551637] [2021-11-06 13:44:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:05,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:06,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:06,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:06,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564551637] [2021-11-06 13:44:06,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564551637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:06,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:06,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:06,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075503478] [2021-11-06 13:44:06,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:06,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:06,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:06,016 INFO L87 Difference]: Start difference. First operand 33431 states and 48892 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:08,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:08,454 INFO L93 Difference]: Finished difference Result 33431 states and 48892 transitions. [2021-11-06 13:44:08,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:08,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-06 13:44:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:08,531 INFO L225 Difference]: With dead ends: 33431 [2021-11-06 13:44:08,531 INFO L226 Difference]: Without dead ends: 33429 [2021-11-06 13:44:08,548 INFO L786 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 [2021-11-06 13:44:08,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33429 states. [2021-11-06 13:44:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33429 to 33429. [2021-11-06 13:44:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33429 states, 33282 states have (on average 1.4631933177092722) internal successors, (48698), 33324 states have internal predecessors, (48698), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (128), 64 states have call predecessors, (128), 64 states have call successors, (128) [2021-11-06 13:44:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33429 states to 33429 states and 48890 transitions. [2021-11-06 13:44:09,285 INFO L78 Accepts]: Start accepts. Automaton has 33429 states and 48890 transitions. Word has length 20 [2021-11-06 13:44:09,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:09,285 INFO L470 AbstractCegarLoop]: Abstraction has 33429 states and 48890 transitions. [2021-11-06 13:44:09,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 33429 states and 48890 transitions. [2021-11-06 13:44:09,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-06 13:44:09,287 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:09,287 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:09,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 13:44:09,289 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:09,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:09,289 INFO L85 PathProgramCache]: Analyzing trace with hash -127618565, now seen corresponding path program 1 times [2021-11-06 13:44:09,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:09,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732161738] [2021-11-06 13:44:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:09,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:09,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:09,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732161738] [2021-11-06 13:44:09,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732161738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:09,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:09,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:09,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315295276] [2021-11-06 13:44:09,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:09,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:09,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:09,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:09,397 INFO L87 Difference]: Start difference. First operand 33429 states and 48890 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:11,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:11,871 INFO L93 Difference]: Finished difference Result 33429 states and 48890 transitions. [2021-11-06 13:44:11,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:11,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-06 13:44:11,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:12,071 INFO L225 Difference]: With dead ends: 33429 [2021-11-06 13:44:12,071 INFO L226 Difference]: Without dead ends: 33420 [2021-11-06 13:44:12,086 INFO L786 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 [2021-11-06 13:44:12,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33420 states. [2021-11-06 13:44:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33420 to 33420. [2021-11-06 13:44:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33420 states, 33274 states have (on average 1.463154414858448) internal successors, (48685), 33315 states have internal predecessors, (48685), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (128), 64 states have call predecessors, (128), 64 states have call successors, (128) [2021-11-06 13:44:12,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33420 states to 33420 states and 48877 transitions. [2021-11-06 13:44:12,796 INFO L78 Accepts]: Start accepts. Automaton has 33420 states and 48877 transitions. Word has length 21 [2021-11-06 13:44:12,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:12,796 INFO L470 AbstractCegarLoop]: Abstraction has 33420 states and 48877 transitions. [2021-11-06 13:44:12,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:12,797 INFO L276 IsEmpty]: Start isEmpty. Operand 33420 states and 48877 transitions. [2021-11-06 13:44:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-06 13:44:12,799 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:12,799 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:12,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 13:44:12,802 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1081299637, now seen corresponding path program 1 times [2021-11-06 13:44:12,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:12,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086402610] [2021-11-06 13:44:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:12,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:44:12,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:12,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086402610] [2021-11-06 13:44:12,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086402610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:12,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:12,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:12,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196739765] [2021-11-06 13:44:12,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:12,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:12,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:12,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:12,920 INFO L87 Difference]: Start difference. First operand 33420 states and 48877 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:14,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:14,038 INFO L93 Difference]: Finished difference Result 73226 states and 107066 transitions. [2021-11-06 13:44:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:14,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-06 13:44:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:14,112 INFO L225 Difference]: With dead ends: 73226 [2021-11-06 13:44:14,112 INFO L226 Difference]: Without dead ends: 39809 [2021-11-06 13:44:14,159 INFO L786 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 [2021-11-06 13:44:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39809 states. [2021-11-06 13:44:14,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39809 to 33456. [2021-11-06 13:44:14,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33456 states, 33310 states have (on average 1.4626538577003902) internal successors, (48721), 33351 states have internal predecessors, (48721), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (128), 64 states have call predecessors, (128), 64 states have call successors, (128) [2021-11-06 13:44:14,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33456 states to 33456 states and 48913 transitions. [2021-11-06 13:44:14,887 INFO L78 Accepts]: Start accepts. Automaton has 33456 states and 48913 transitions. Word has length 34 [2021-11-06 13:44:14,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:14,888 INFO L470 AbstractCegarLoop]: Abstraction has 33456 states and 48913 transitions. [2021-11-06 13:44:14,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:14,888 INFO L276 IsEmpty]: Start isEmpty. Operand 33456 states and 48913 transitions. [2021-11-06 13:44:14,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-06 13:44:14,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:14,893 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:14,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 13:44:14,895 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:14,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:14,895 INFO L85 PathProgramCache]: Analyzing trace with hash -120764988, now seen corresponding path program 1 times [2021-11-06 13:44:14,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:14,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073716339] [2021-11-06 13:44:14,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:14,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:14,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:14,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073716339] [2021-11-06 13:44:14,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073716339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:14,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:14,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:14,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313044948] [2021-11-06 13:44:14,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:14,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:14,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:14,990 INFO L87 Difference]: Start difference. First operand 33456 states and 48913 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:15,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:15,898 INFO L93 Difference]: Finished difference Result 72154 states and 105682 transitions. [2021-11-06 13:44:15,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:15,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-06 13:44:15,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:16,121 INFO L225 Difference]: With dead ends: 72154 [2021-11-06 13:44:16,122 INFO L226 Difference]: Without dead ends: 38701 [2021-11-06 13:44:16,157 INFO L786 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 [2021-11-06 13:44:16,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38701 states. [2021-11-06 13:44:16,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38701 to 38676. [2021-11-06 13:44:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38676 states, 38530 states have (on average 1.4678691928367507) internal successors, (56557), 38571 states have internal predecessors, (56557), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (128), 64 states have call predecessors, (128), 64 states have call successors, (128) [2021-11-06 13:44:16,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38676 states to 38676 states and 56749 transitions. [2021-11-06 13:44:16,855 INFO L78 Accepts]: Start accepts. Automaton has 38676 states and 56749 transitions. Word has length 46 [2021-11-06 13:44:16,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:16,855 INFO L470 AbstractCegarLoop]: Abstraction has 38676 states and 56749 transitions. [2021-11-06 13:44:16,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:16,855 INFO L276 IsEmpty]: Start isEmpty. Operand 38676 states and 56749 transitions. [2021-11-06 13:44:16,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-06 13:44:16,859 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:16,859 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:16,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 13:44:16,859 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:16,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:16,860 INFO L85 PathProgramCache]: Analyzing trace with hash 434945564, now seen corresponding path program 1 times [2021-11-06 13:44:16,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:16,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979405635] [2021-11-06 13:44:16,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:16,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:44:16,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:16,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979405635] [2021-11-06 13:44:16,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979405635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:16,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:16,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:16,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096056155] [2021-11-06 13:44:16,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 13:44:16,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:16,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 13:44:16,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:44:16,966 INFO L87 Difference]: Start difference. First operand 38676 states and 56749 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:17,662 INFO L93 Difference]: Finished difference Result 76611 states and 112406 transitions. [2021-11-06 13:44:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 13:44:17,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-06 13:44:17,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:17,736 INFO L225 Difference]: With dead ends: 76611 [2021-11-06 13:44:17,736 INFO L226 Difference]: Without dead ends: 37938 [2021-11-06 13:44:17,797 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:44:17,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37938 states. [2021-11-06 13:44:18,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37938 to 37930. [2021-11-06 13:44:18,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37930 states, 37785 states have (on average 1.4675664946407305) internal successors, (55452), 37825 states have internal predecessors, (55452), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (128), 64 states have call predecessors, (128), 64 states have call successors, (128) [2021-11-06 13:44:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37930 states to 37930 states and 55644 transitions. [2021-11-06 13:44:18,885 INFO L78 Accepts]: Start accepts. Automaton has 37930 states and 55644 transitions. Word has length 45 [2021-11-06 13:44:18,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:18,885 INFO L470 AbstractCegarLoop]: Abstraction has 37930 states and 55644 transitions. [2021-11-06 13:44:18,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:18,885 INFO L276 IsEmpty]: Start isEmpty. Operand 37930 states and 55644 transitions. [2021-11-06 13:44:18,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-06 13:44:18,892 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:18,893 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:18,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 13:44:18,900 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:18,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:18,902 INFO L85 PathProgramCache]: Analyzing trace with hash -788174428, now seen corresponding path program 1 times [2021-11-06 13:44:18,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:18,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502420166] [2021-11-06 13:44:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:18,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:19,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:44:19,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:19,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502420166] [2021-11-06 13:44:19,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502420166] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:19,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:19,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 13:44:19,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948251160] [2021-11-06 13:44:19,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 13:44:19,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:19,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 13:44:19,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:44:19,023 INFO L87 Difference]: Start difference. First operand 37930 states and 55644 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:19,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:19,898 INFO L93 Difference]: Finished difference Result 73506 states and 107796 transitions. [2021-11-06 13:44:19,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 13:44:19,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-06 13:44:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:19,968 INFO L225 Difference]: With dead ends: 73506 [2021-11-06 13:44:19,968 INFO L226 Difference]: Without dead ends: 35579 [2021-11-06 13:44:20,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 13:44:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35579 states. [2021-11-06 13:44:20,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35579 to 31724. [2021-11-06 13:44:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31724 states, 31586 states have (on average 1.4648578484138541) internal successors, (46269), 31619 states have internal predecessors, (46269), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (128), 64 states have call predecessors, (128), 64 states have call successors, (128) [2021-11-06 13:44:20,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31724 states to 31724 states and 46461 transitions. [2021-11-06 13:44:20,783 INFO L78 Accepts]: Start accepts. Automaton has 31724 states and 46461 transitions. Word has length 52 [2021-11-06 13:44:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:20,784 INFO L470 AbstractCegarLoop]: Abstraction has 31724 states and 46461 transitions. [2021-11-06 13:44:20,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:20,784 INFO L276 IsEmpty]: Start isEmpty. Operand 31724 states and 46461 transitions. [2021-11-06 13:44:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-06 13:44:20,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:20,789 INFO L513 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] [2021-11-06 13:44:20,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 13:44:20,790 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:20,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:20,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1676409213, now seen corresponding path program 1 times [2021-11-06 13:44:20,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:20,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923660419] [2021-11-06 13:44:20,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:20,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:20,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:20,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923660419] [2021-11-06 13:44:20,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923660419] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:44:20,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704190857] [2021-11-06 13:44:20,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:20,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:44:20,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:44:20,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:44:20,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 13:44:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:21,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:44:21,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:44:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 13:44:21,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704190857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:21,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 13:44:21,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-06 13:44:21,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897309021] [2021-11-06 13:44:21,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:21,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:21,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:21,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:44:21,945 INFO L87 Difference]: Start difference. First operand 31724 states and 46461 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:22,853 INFO L93 Difference]: Finished difference Result 63477 states and 93031 transitions. [2021-11-06 13:44:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:22,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-06 13:44:22,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:22,915 INFO L225 Difference]: With dead ends: 63477 [2021-11-06 13:44:22,916 INFO L226 Difference]: Without dead ends: 31748 [2021-11-06 13:44:22,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:44:22,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31748 states. [2021-11-06 13:44:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31748 to 31748. [2021-11-06 13:44:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31748 states, 31602 states have (on average 1.4643693437124232) internal successors, (46277), 31643 states have internal predecessors, (46277), 64 states have call successors, (64), 40 states have call predecessors, (64), 48 states have return successors, (144), 64 states have call predecessors, (144), 64 states have call successors, (144) [2021-11-06 13:44:23,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31748 states to 31748 states and 46485 transitions. [2021-11-06 13:44:23,686 INFO L78 Accepts]: Start accepts. Automaton has 31748 states and 46485 transitions. Word has length 59 [2021-11-06 13:44:23,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:23,686 INFO L470 AbstractCegarLoop]: Abstraction has 31748 states and 46485 transitions. [2021-11-06 13:44:23,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:23,687 INFO L276 IsEmpty]: Start isEmpty. Operand 31748 states and 46485 transitions. [2021-11-06 13:44:23,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-06 13:44:23,692 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:23,692 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:23,715 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-06 13:44:23,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-06 13:44:23,908 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:23,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:23,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1125510950, now seen corresponding path program 1 times [2021-11-06 13:44:23,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:23,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283131954] [2021-11-06 13:44:23,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:23,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:44:24,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:24,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283131954] [2021-11-06 13:44:24,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283131954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:24,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:24,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:24,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116610277] [2021-11-06 13:44:24,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:24,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:24,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:24,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:24,082 INFO L87 Difference]: Start difference. First operand 31748 states and 46485 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:26,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:26,800 INFO L93 Difference]: Finished difference Result 31748 states and 46485 transitions. [2021-11-06 13:44:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:26,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-06 13:44:26,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:26,869 INFO L225 Difference]: With dead ends: 31748 [2021-11-06 13:44:26,869 INFO L226 Difference]: Without dead ends: 31690 [2021-11-06 13:44:26,887 INFO L786 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 [2021-11-06 13:44:26,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31690 states. [2021-11-06 13:44:27,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31690 to 31690. [2021-11-06 13:44:27,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31690 states, 31573 states have (on average 1.4577328730244197) internal successors, (46025), 31585 states have internal predecessors, (46025), 64 states have call successors, (64), 40 states have call predecessors, (64), 48 states have return successors, (144), 64 states have call predecessors, (144), 64 states have call successors, (144) [2021-11-06 13:44:27,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31690 states to 31690 states and 46233 transitions. [2021-11-06 13:44:27,661 INFO L78 Accepts]: Start accepts. Automaton has 31690 states and 46233 transitions. Word has length 57 [2021-11-06 13:44:27,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:27,662 INFO L470 AbstractCegarLoop]: Abstraction has 31690 states and 46233 transitions. [2021-11-06 13:44:27,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:27,662 INFO L276 IsEmpty]: Start isEmpty. Operand 31690 states and 46233 transitions. [2021-11-06 13:44:27,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-06 13:44:27,667 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:27,667 INFO L513 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] [2021-11-06 13:44:27,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 13:44:27,667 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1385026707, now seen corresponding path program 1 times [2021-11-06 13:44:27,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:27,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185380406] [2021-11-06 13:44:27,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:27,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:27,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:27,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185380406] [2021-11-06 13:44:27,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185380406] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:44:27,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093203547] [2021-11-06 13:44:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:27,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:44:27,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:44:27,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:44:27,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 13:44:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:28,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:44:28,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:44:28,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:28,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093203547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:28,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 13:44:28,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-06 13:44:28,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562878508] [2021-11-06 13:44:28,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:28,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:28,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:28,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:44:28,954 INFO L87 Difference]: Start difference. First operand 31690 states and 46233 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:29,986 INFO L93 Difference]: Finished difference Result 92168 states and 134609 transitions. [2021-11-06 13:44:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:29,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-06 13:44:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:30,180 INFO L225 Difference]: With dead ends: 92168 [2021-11-06 13:44:30,180 INFO L226 Difference]: Without dead ends: 60481 [2021-11-06 13:44:30,240 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:44:30,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60481 states. [2021-11-06 13:44:31,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60481 to 60114. [2021-11-06 13:44:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60114 states, 59901 states have (on average 1.4602260396320597) internal successors, (87469), 59921 states have internal predecessors, (87469), 112 states have call successors, (112), 80 states have call predecessors, (112), 96 states have return successors, (256), 112 states have call predecessors, (256), 112 states have call successors, (256) [2021-11-06 13:44:31,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60114 states to 60114 states and 87837 transitions. [2021-11-06 13:44:31,654 INFO L78 Accepts]: Start accepts. Automaton has 60114 states and 87837 transitions. Word has length 61 [2021-11-06 13:44:31,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:31,654 INFO L470 AbstractCegarLoop]: Abstraction has 60114 states and 87837 transitions. [2021-11-06 13:44:31,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:44:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 60114 states and 87837 transitions. [2021-11-06 13:44:31,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 13:44:31,669 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:31,669 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:31,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-06 13:44:31,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-06 13:44:31,882 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:44:31,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:31,882 INFO L85 PathProgramCache]: Analyzing trace with hash -646346988, now seen corresponding path program 1 times [2021-11-06 13:44:31,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:31,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860808716] [2021-11-06 13:44:31,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:31,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-06 13:44:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:32,040 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:44:32,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:32,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860808716] [2021-11-06 13:44:32,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860808716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:32,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:32,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 13:44:32,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061111840] [2021-11-06 13:44:32,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 13:44:32,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:32,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 13:44:32,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:44:32,042 INFO L87 Difference]: Start difference. First operand 60114 states and 87837 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:45:24,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:45:24,658 INFO L93 Difference]: Finished difference Result 120411 states and 176053 transitions. [2021-11-06 13:45:24,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 13:45:24,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2021-11-06 13:45:24,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:45:24,940 INFO L225 Difference]: With dead ends: 120411 [2021-11-06 13:45:24,941 INFO L226 Difference]: Without dead ends: 60300 [2021-11-06 13:45:25,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:45:25,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60300 states. [2021-11-06 13:45:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60300 to 60180. [2021-11-06 13:45:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60180 states, 59951 states have (on average 1.4598422044669814) internal successors, (87519), 59987 states have internal predecessors, (87519), 112 states have call successors, (112), 80 states have call predecessors, (112), 112 states have return successors, (272), 112 states have call predecessors, (272), 112 states have call successors, (272) [2021-11-06 13:45:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60180 states to 60180 states and 87903 transitions. [2021-11-06 13:45:26,418 INFO L78 Accepts]: Start accepts. Automaton has 60180 states and 87903 transitions. Word has length 80 [2021-11-06 13:45:26,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:45:26,418 INFO L470 AbstractCegarLoop]: Abstraction has 60180 states and 87903 transitions. [2021-11-06 13:45:26,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:45:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 60180 states and 87903 transitions. [2021-11-06 13:45:26,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-06 13:45:26,424 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:45:26,425 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:45:26,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-06 13:45:26,425 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ##fun~$Pointer$~TO~intErr11ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:45:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:45:26,425 INFO L85 PathProgramCache]: Analyzing trace with hash 45131601, now seen corresponding path program 1 times [2021-11-06 13:45:26,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:45:26,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433896431] [2021-11-06 13:45:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:45:26,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:45:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:45:26,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-06 13:45:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:45:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:45:26,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:45:26,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433896431] [2021-11-06 13:45:26,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433896431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:45:26,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:45:26,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 13:45:26,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875435146] [2021-11-06 13:45:26,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 13:45:26,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:45:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 13:45:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:45:26,541 INFO L87 Difference]: Start difference. First operand 60180 states and 87903 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:46:19,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:46:19,784 INFO L93 Difference]: Finished difference Result 122533 states and 179124 transitions. [2021-11-06 13:46:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 13:46:19,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2021-11-06 13:46:19,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:46:19,954 INFO L225 Difference]: With dead ends: 122533 [2021-11-06 13:46:19,954 INFO L226 Difference]: Without dead ends: 62356 [2021-11-06 13:46:20,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:46:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62356 states. [2021-11-06 13:46:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62356 to 60198. [2021-11-06 13:46:21,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60198 states, 59969 states have (on average 1.459704180493255) internal successors, (87537), 60005 states have internal predecessors, (87537), 112 states have call successors, (112), 80 states have call predecessors, (112), 112 states have return successors, (272), 112 states have call predecessors, (272), 112 states have call successors, (272) [2021-11-06 13:46:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60198 states to 60198 states and 87921 transitions. [2021-11-06 13:46:21,524 INFO L78 Accepts]: Start accepts. Automaton has 60198 states and 87921 transitions. Word has length 81 [2021-11-06 13:46:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:46:21,524 INFO L470 AbstractCegarLoop]: Abstraction has 60198 states and 87921 transitions. [2021-11-06 13:46:21,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:46:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 60198 states and 87921 transitions. [2021-11-06 13:46:21,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 13:46:21,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:46:21,532 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:46:21,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-06 13:46:21,532 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ##fun~$Pointer$~TO~intErr11ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:46:21,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:46:21,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1938496302, now seen corresponding path program 1 times [2021-11-06 13:46:21,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:46:21,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018662005] [2021-11-06 13:46:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:46:21,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:46:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:46:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-06 13:46:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:46:21,673 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:46:21,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:46:21,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018662005] [2021-11-06 13:46:21,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018662005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:46:21,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:46:21,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 13:46:21,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041001372] [2021-11-06 13:46:21,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 13:46:21,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:46:21,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 13:46:21,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 13:46:21,676 INFO L87 Difference]: Start difference. First operand 60198 states and 87921 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:47:12,264 INFO L93 Difference]: Finished difference Result 122551 states and 179124 transitions. [2021-11-06 13:47:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 13:47:12,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2021-11-06 13:47:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:47:12,422 INFO L225 Difference]: With dead ends: 122551 [2021-11-06 13:47:12,422 INFO L226 Difference]: Without dead ends: 62356 [2021-11-06 13:47:12,539 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-06 13:47:12,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62356 states. [2021-11-06 13:47:13,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62356 to 60297. [2021-11-06 13:47:13,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60297 states, 60068 states have (on average 1.4592461876539922) internal successors, (87654), 60104 states have internal predecessors, (87654), 112 states have call successors, (112), 80 states have call predecessors, (112), 112 states have return successors, (272), 112 states have call predecessors, (272), 112 states have call successors, (272) [2021-11-06 13:47:13,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60297 states to 60297 states and 88038 transitions. [2021-11-06 13:47:13,926 INFO L78 Accepts]: Start accepts. Automaton has 60297 states and 88038 transitions. Word has length 84 [2021-11-06 13:47:13,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:47:13,927 INFO L470 AbstractCegarLoop]: Abstraction has 60297 states and 88038 transitions. [2021-11-06 13:47:13,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 60297 states and 88038 transitions. [2021-11-06 13:47:13,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 13:47:13,934 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:47:13,934 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:47:13,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-06 13:47:13,935 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:47:13,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:47:13,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1471650878, now seen corresponding path program 1 times [2021-11-06 13:47:13,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:47:13,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085363599] [2021-11-06 13:47:13,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:13,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:47:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:14,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-06 13:47:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:14,070 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:47:14,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:47:14,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085363599] [2021-11-06 13:47:14,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085363599] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:47:14,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206480133] [2021-11-06 13:47:14,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:14,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:47:14,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:47:14,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:47:14,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 13:47:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:14,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 2009 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 13:47:14,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:47:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-06 13:47:15,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206480133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:47:15,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 13:47:15,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-06 13:47:15,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547117357] [2021-11-06 13:47:15,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:47:15,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:47:15,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:47:15,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-06 13:47:15,098 INFO L87 Difference]: Start difference. First operand 60297 states and 88038 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:18,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:47:18,605 INFO L93 Difference]: Finished difference Result 120591 states and 176129 transitions. [2021-11-06 13:47:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:47:18,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2021-11-06 13:47:18,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:47:18,771 INFO L225 Difference]: With dead ends: 120591 [2021-11-06 13:47:18,771 INFO L226 Difference]: Without dead ends: 60297 [2021-11-06 13:47:18,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-06 13:47:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60297 states. [2021-11-06 13:47:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60297 to 60200. [2021-11-06 13:47:20,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60200 states, 59987 states have (on average 1.4593328554520146) internal successors, (87541), 60007 states have internal predecessors, (87541), 112 states have call successors, (112), 80 states have call predecessors, (112), 96 states have return successors, (192), 112 states have call predecessors, (192), 112 states have call successors, (192) [2021-11-06 13:47:20,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60200 states to 60200 states and 87845 transitions. [2021-11-06 13:47:20,377 INFO L78 Accepts]: Start accepts. Automaton has 60200 states and 87845 transitions. Word has length 85 [2021-11-06 13:47:20,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:47:20,377 INFO L470 AbstractCegarLoop]: Abstraction has 60200 states and 87845 transitions. [2021-11-06 13:47:20,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:20,378 INFO L276 IsEmpty]: Start isEmpty. Operand 60200 states and 87845 transitions. [2021-11-06 13:47:20,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 13:47:20,385 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:47:20,385 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:47:20,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 13:47:20,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-06 13:47:20,604 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:47:20,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:47:20,604 INFO L85 PathProgramCache]: Analyzing trace with hash -116697024, now seen corresponding path program 1 times [2021-11-06 13:47:20,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:47:20,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756777804] [2021-11-06 13:47:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:20,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:47:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-06 13:47:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:47:20,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:47:20,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756777804] [2021-11-06 13:47:20,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756777804] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:47:20,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036897142] [2021-11-06 13:47:20,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:20,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:47:20,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:47:20,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:47:20,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 13:47:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:21,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 2008 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 13:47:21,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:47:21,801 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 13:47:21,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036897142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:47:21,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 13:47:21,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-11-06 13:47:21,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59494490] [2021-11-06 13:47:21,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 13:47:21,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:47:21,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 13:47:21,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-06 13:47:21,802 INFO L87 Difference]: Start difference. First operand 60200 states and 87845 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:25,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:47:25,211 INFO L93 Difference]: Finished difference Result 120426 states and 175721 transitions. [2021-11-06 13:47:25,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 13:47:25,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2021-11-06 13:47:25,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:47:25,378 INFO L225 Difference]: With dead ends: 120426 [2021-11-06 13:47:25,378 INFO L226 Difference]: Without dead ends: 60217 [2021-11-06 13:47:25,470 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-06 13:47:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60217 states. [2021-11-06 13:47:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60217 to 60202. [2021-11-06 13:47:26,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60202 states, 59989 states have (on average 1.459217523212589) internal successors, (87537), 60009 states have internal predecessors, (87537), 112 states have call successors, (112), 80 states have call predecessors, (112), 96 states have return successors, (192), 112 states have call predecessors, (192), 112 states have call successors, (192) [2021-11-06 13:47:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60202 states to 60202 states and 87841 transitions. [2021-11-06 13:47:26,892 INFO L78 Accepts]: Start accepts. Automaton has 60202 states and 87841 transitions. Word has length 85 [2021-11-06 13:47:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:47:26,893 INFO L470 AbstractCegarLoop]: Abstraction has 60202 states and 87841 transitions. [2021-11-06 13:47:26,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand 60202 states and 87841 transitions. [2021-11-06 13:47:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 13:47:26,900 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:47:26,900 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:47:26,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-06 13:47:27,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:47:27,110 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:47:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:47:27,110 INFO L85 PathProgramCache]: Analyzing trace with hash 197854018, now seen corresponding path program 1 times [2021-11-06 13:47:27,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:47:27,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451078563] [2021-11-06 13:47:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:27,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:47:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:27,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-06 13:47:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:47:27,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:47:27,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451078563] [2021-11-06 13:47:27,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451078563] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:47:27,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240350902] [2021-11-06 13:47:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:27,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:47:27,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:47:27,271 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:47:27,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-06 13:47:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:28,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 13:47:28,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:47:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 13:47:28,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240350902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:47:28,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 13:47:28,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-06 13:47:28,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594527461] [2021-11-06 13:47:28,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 13:47:28,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:47:28,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 13:47:28,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-06 13:47:28,582 INFO L87 Difference]: Start difference. First operand 60202 states and 87841 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:31,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:47:31,871 INFO L93 Difference]: Finished difference Result 120442 states and 175725 transitions. [2021-11-06 13:47:31,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 13:47:31,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2021-11-06 13:47:31,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:47:32,034 INFO L225 Difference]: With dead ends: 120442 [2021-11-06 13:47:32,034 INFO L226 Difference]: Without dead ends: 60225 [2021-11-06 13:47:32,121 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-06 13:47:32,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60225 states. [2021-11-06 13:47:33,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60225 to 60203. [2021-11-06 13:47:33,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60203 states, 59990 states have (on average 1.4591098516419403) internal successors, (87532), 60010 states have internal predecessors, (87532), 112 states have call successors, (112), 80 states have call predecessors, (112), 96 states have return successors, (192), 112 states have call predecessors, (192), 112 states have call successors, (192) [2021-11-06 13:47:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60203 states to 60203 states and 87836 transitions. [2021-11-06 13:47:33,596 INFO L78 Accepts]: Start accepts. Automaton has 60203 states and 87836 transitions. Word has length 88 [2021-11-06 13:47:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:47:33,596 INFO L470 AbstractCegarLoop]: Abstraction has 60203 states and 87836 transitions. [2021-11-06 13:47:33,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 60203 states and 87836 transitions. [2021-11-06 13:47:33,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 13:47:33,604 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:47:33,604 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:47:33,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-06 13:47:33,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:47:33,826 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:47:33,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:47:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1528688287, now seen corresponding path program 1 times [2021-11-06 13:47:33,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:47:33,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920372415] [2021-11-06 13:47:33,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:33,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:47:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:33,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-06 13:47:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:47:33,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:47:33,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920372415] [2021-11-06 13:47:33,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920372415] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:47:33,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848810513] [2021-11-06 13:47:33,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:33,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:47:33,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:47:33,965 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:47:33,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-06 13:47:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:34,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 2023 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 13:47:34,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:47:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:47:35,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848810513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:47:35,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 13:47:35,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-06 13:47:35,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408930260] [2021-11-06 13:47:35,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 13:47:35,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:47:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 13:47:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-06 13:47:35,074 INFO L87 Difference]: Start difference. First operand 60203 states and 87836 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:39,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:47:39,097 INFO L93 Difference]: Finished difference Result 151643 states and 221286 transitions. [2021-11-06 13:47:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 13:47:39,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2021-11-06 13:47:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:47:39,360 INFO L225 Difference]: With dead ends: 151643 [2021-11-06 13:47:39,360 INFO L226 Difference]: Without dead ends: 91443 [2021-11-06 13:47:39,448 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-06 13:47:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91443 states. [2021-11-06 13:47:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91443 to 60243. [2021-11-06 13:47:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60243 states, 60018 states have (on average 1.458895664633943) internal successors, (87560), 60042 states have internal predecessors, (87560), 112 states have call successors, (112), 80 states have call predecessors, (112), 108 states have return successors, (212), 120 states have call predecessors, (212), 112 states have call successors, (212) [2021-11-06 13:47:41,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60243 states to 60243 states and 87884 transitions. [2021-11-06 13:47:41,326 INFO L78 Accepts]: Start accepts. Automaton has 60243 states and 87884 transitions. Word has length 88 [2021-11-06 13:47:41,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:47:41,326 INFO L470 AbstractCegarLoop]: Abstraction has 60243 states and 87884 transitions. [2021-11-06 13:47:41,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:47:41,327 INFO L276 IsEmpty]: Start isEmpty. Operand 60243 states and 87884 transitions. [2021-11-06 13:47:41,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-06 13:47:41,335 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:47:41,335 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:47:41,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-06 13:47:41,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:47:41,551 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:47:41,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:47:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1912751382, now seen corresponding path program 1 times [2021-11-06 13:47:41,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:47:41,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930116332] [2021-11-06 13:47:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:47:41,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:47:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-06 13:47:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:47:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:47:41,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:47:41,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930116332] [2021-11-06 13:47:41,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930116332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:47:41,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:47:41,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 13:47:41,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028312811] [2021-11-06 13:47:41,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 13:47:41,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:47:41,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 13:47:41,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:47:41,677 INFO L87 Difference]: Start difference. First operand 60243 states and 87884 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:48:36,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:48:36,222 INFO L93 Difference]: Finished difference Result 124523 states and 181753 transitions. [2021-11-06 13:48:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 13:48:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2021-11-06 13:48:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:48:36,404 INFO L225 Difference]: With dead ends: 124523 [2021-11-06 13:48:36,405 INFO L226 Difference]: Without dead ends: 64283 [2021-11-06 13:48:36,517 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:48:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64283 states. [2021-11-06 13:48:37,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64283 to 60275. [2021-11-06 13:48:37,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60275 states, 60050 states have (on average 1.4586511240632807) internal successors, (87592), 60074 states have internal predecessors, (87592), 112 states have call successors, (112), 80 states have call predecessors, (112), 108 states have return successors, (212), 120 states have call predecessors, (212), 112 states have call successors, (212) [2021-11-06 13:48:38,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60275 states to 60275 states and 87916 transitions. [2021-11-06 13:48:38,077 INFO L78 Accepts]: Start accepts. Automaton has 60275 states and 87916 transitions. Word has length 111 [2021-11-06 13:48:38,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:48:38,077 INFO L470 AbstractCegarLoop]: Abstraction has 60275 states and 87916 transitions. [2021-11-06 13:48:38,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:48:38,078 INFO L276 IsEmpty]: Start isEmpty. Operand 60275 states and 87916 transitions. [2021-11-06 13:48:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-06 13:48:38,086 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:48:38,086 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:48:38,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-06 13:48:38,087 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:48:38,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:48:38,087 INFO L85 PathProgramCache]: Analyzing trace with hash -201065308, now seen corresponding path program 1 times [2021-11-06 13:48:38,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:48:38,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241535574] [2021-11-06 13:48:38,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:48:38,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:48:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:48:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-06 13:48:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:48:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:48:38,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:48:38,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241535574] [2021-11-06 13:48:38,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241535574] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:48:38,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229627258] [2021-11-06 13:48:38,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:48:38,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:48:38,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:48:38,284 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:48:38,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-06 13:48:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:48:39,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 2345 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-06 13:48:39,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:48:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:48:39,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229627258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:48:39,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 13:48:39,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2021-11-06 13:48:39,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507484396] [2021-11-06 13:48:39,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 13:48:39,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:48:39,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 13:48:39,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-06 13:48:39,573 INFO L87 Difference]: Start difference. First operand 60275 states and 87916 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:48:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:48:43,751 INFO L93 Difference]: Finished difference Result 151931 states and 221874 transitions. [2021-11-06 13:48:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-06 13:48:43,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2021-11-06 13:48:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:48:43,979 INFO L225 Difference]: With dead ends: 151931 [2021-11-06 13:48:43,979 INFO L226 Difference]: Without dead ends: 91659 [2021-11-06 13:48:44,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2021-11-06 13:48:44,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91659 states. [2021-11-06 13:48:45,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91659 to 60331. [2021-11-06 13:48:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60331 states, 60106 states have (on average 1.4582238046118523) internal successors, (87648), 60130 states have internal predecessors, (87648), 112 states have call successors, (112), 80 states have call predecessors, (112), 108 states have return successors, (212), 120 states have call predecessors, (212), 112 states have call successors, (212) [2021-11-06 13:48:45,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60331 states to 60331 states and 87972 transitions. [2021-11-06 13:48:45,752 INFO L78 Accepts]: Start accepts. Automaton has 60331 states and 87972 transitions. Word has length 114 [2021-11-06 13:48:45,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:48:45,752 INFO L470 AbstractCegarLoop]: Abstraction has 60331 states and 87972 transitions. [2021-11-06 13:48:45,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:48:45,752 INFO L276 IsEmpty]: Start isEmpty. Operand 60331 states and 87972 transitions. [2021-11-06 13:48:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-06 13:48:45,761 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:48:45,761 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:48:45,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-06 13:48:45,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:48:45,975 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:48:45,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:48:45,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1378912051, now seen corresponding path program 1 times [2021-11-06 13:48:45,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:48:45,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614444959] [2021-11-06 13:48:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:48:45,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:48:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:48:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-06 13:48:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:48:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:48:46,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:48:46,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614444959] [2021-11-06 13:48:46,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614444959] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:48:46,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332068017] [2021-11-06 13:48:46,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:48:46,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:48:46,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:48:46,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:48:46,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-06 13:48:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:48:47,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 2401 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 13:48:47,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:48:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:48:47,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332068017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:48:47,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 13:48:47,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2021-11-06 13:48:47,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157842342] [2021-11-06 13:48:47,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 13:48:47,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:48:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 13:48:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-06 13:48:47,551 INFO L87 Difference]: Start difference. First operand 60331 states and 87972 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:48:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:48:51,932 INFO L93 Difference]: Finished difference Result 152179 states and 222138 transitions. [2021-11-06 13:48:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-06 13:48:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2021-11-06 13:48:51,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:48:52,139 INFO L225 Difference]: With dead ends: 152179 [2021-11-06 13:48:52,139 INFO L226 Difference]: Without dead ends: 91851 [2021-11-06 13:48:52,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2021-11-06 13:48:52,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91851 states. [2021-11-06 13:48:53,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91851 to 60363. [2021-11-06 13:48:53,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60363 states, 60138 states have (on average 1.4579799793807575) internal successors, (87680), 60162 states have internal predecessors, (87680), 112 states have call successors, (112), 80 states have call predecessors, (112), 108 states have return successors, (212), 120 states have call predecessors, (212), 112 states have call successors, (212) [2021-11-06 13:48:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60363 states to 60363 states and 88004 transitions. [2021-11-06 13:48:54,032 INFO L78 Accepts]: Start accepts. Automaton has 60363 states and 88004 transitions. Word has length 120 [2021-11-06 13:48:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:48:54,033 INFO L470 AbstractCegarLoop]: Abstraction has 60363 states and 88004 transitions. [2021-11-06 13:48:54,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:48:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 60363 states and 88004 transitions. [2021-11-06 13:48:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-06 13:48:54,040 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:48:54,041 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:48:54,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-06 13:48:54,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-06 13:48:54,242 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:48:54,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:48:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash -575438220, now seen corresponding path program 1 times [2021-11-06 13:48:54,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:48:54,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715734978] [2021-11-06 13:48:54,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:48:54,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:48:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:48:54,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-06 13:48:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:48:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 13:48:54,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:48:54,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715734978] [2021-11-06 13:48:54,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715734978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:48:54,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:48:54,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 13:48:54,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741141127] [2021-11-06 13:48:54,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 13:48:54,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:48:54,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 13:48:54,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:48:54,448 INFO L87 Difference]: Start difference. First operand 60363 states and 88004 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:49:49,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:49:49,418 INFO L93 Difference]: Finished difference Result 124283 states and 181337 transitions. [2021-11-06 13:49:49,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 13:49:49,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2021-11-06 13:49:49,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:49:49,601 INFO L225 Difference]: With dead ends: 124283 [2021-11-06 13:49:49,601 INFO L226 Difference]: Without dead ends: 63923 [2021-11-06 13:49:49,715 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-06 13:49:49,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63923 states. [2021-11-06 13:49:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63923 to 60395. [2021-11-06 13:49:51,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60395 states, 60170 states have (on average 1.4577364134950972) internal successors, (87712), 60194 states have internal predecessors, (87712), 112 states have call successors, (112), 80 states have call predecessors, (112), 108 states have return successors, (212), 120 states have call predecessors, (212), 112 states have call successors, (212) [2021-11-06 13:49:51,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60395 states to 60395 states and 88036 transitions. [2021-11-06 13:49:51,333 INFO L78 Accepts]: Start accepts. Automaton has 60395 states and 88036 transitions. Word has length 122 [2021-11-06 13:49:51,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:49:51,334 INFO L470 AbstractCegarLoop]: Abstraction has 60395 states and 88036 transitions. [2021-11-06 13:49:51,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-06 13:49:51,334 INFO L276 IsEmpty]: Start isEmpty. Operand 60395 states and 88036 transitions. [2021-11-06 13:49:51,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 13:49:51,343 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:49:51,344 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:49:51,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-06 13:49:51,344 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ##fun~$Pointer$~TO~intErr5ASSERT_VIOLATIONERROR_FUNCTION === [fdtv_dvb_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr1ASSERT_VIOLATIONERROR_FUNCTION, fdtv_dvb_registerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 80 more)] === [2021-11-06 13:49:51,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:49:51,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1777351094, now seen corresponding path program 1 times [2021-11-06 13:49:51,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:49:51,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073257547] [2021-11-06 13:49:51,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:49:51,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:49:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:49:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-06 13:49:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:49:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 13:49:51,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:49:51,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073257547] [2021-11-06 13:49:51,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073257547] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 13:49:51,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062990650] [2021-11-06 13:49:51,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:49:51,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 13:49:51,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:49:51,648 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 13:49:51,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process