/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 15:47:19,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 15:47:19,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 15:47:19,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 15:47:19,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 15:47:19,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 15:47:19,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 15:47:19,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 15:47:19,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 15:47:19,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 15:47:19,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 15:47:19,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 15:47:19,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 15:47:19,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 15:47:19,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 15:47:19,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 15:47:19,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 15:47:19,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 15:47:19,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 15:47:19,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 15:47:19,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 15:47:19,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 15:47:19,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 15:47:19,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 15:47:19,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 15:47:19,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 15:47:19,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 15:47:19,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 15:47:19,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 15:47:19,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 15:47:19,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 15:47:19,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 15:47:19,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 15:47:19,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 15:47:19,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 15:47:19,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 15:47:19,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 15:47:19,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 15:47:19,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 15:47:19,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 15:47:19,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 15:47:19,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-14 15:47:19,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 15:47:19,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 15:47:19,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 15:47:19,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 15:47:19,977 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 15:47:19,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 15:47:19,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 15:47:19,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 15:47:19,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 15:47:19,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 15:47:19,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 15:47:19,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 15:47:19,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 15:47:19,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 15:47:19,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 15:47:19,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 15:47:19,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 15:47:19,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 15:47:19,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 15:47:19,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 15:47:19,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 15:47:19,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 15:47:19,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 15:47:19,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 15:47:19,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 15:47:19,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 15:47:19,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 15:47:19,982 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 15:47:20,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 15:47:20,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 15:47:20,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 15:47:20,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 15:47:20,311 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 15:47:20,313 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2020-10-14 15:47:20,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6f319c8/428af86572ef47afb349c1f4ff3c848b/FLAG453681a64 [2020-10-14 15:47:21,247 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 15:47:21,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2020-10-14 15:47:21,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6f319c8/428af86572ef47afb349c1f4ff3c848b/FLAG453681a64 [2020-10-14 15:47:21,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6f319c8/428af86572ef47afb349c1f4ff3c848b [2020-10-14 15:47:21,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 15:47:21,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 15:47:21,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 15:47:21,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 15:47:21,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 15:47:21,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:47:21" (1/1) ... [2020-10-14 15:47:21,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368a0f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:21, skipping insertion in model container [2020-10-14 15:47:21,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:47:21" (1/1) ... [2020-10-14 15:47:21,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 15:47:21,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 15:47:22,695 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4481] [2020-10-14 15:47:24,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 15:47:24,263 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 15:47:24,401 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4481] [2020-10-14 15:47:25,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 15:47:25,291 INFO L208 MainTranslator]: Completed translation [2020-10-14 15:47:25,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25 WrapperNode [2020-10-14 15:47:25,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 15:47:25,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 15:47:25,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 15:47:25,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 15:47:25,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (1/1) ... [2020-10-14 15:47:25,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (1/1) ... [2020-10-14 15:47:25,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (1/1) ... [2020-10-14 15:47:25,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (1/1) ... [2020-10-14 15:47:25,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (1/1) ... [2020-10-14 15:47:25,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (1/1) ... [2020-10-14 15:47:25,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (1/1) ... [2020-10-14 15:47:25,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 15:47:25,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 15:47:25,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 15:47:25,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 15:47:25,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 15:47:25,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 15:47:25,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 15:47:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 15:47:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-14 15:47:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-14 15:47:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-14 15:47:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~int~TO~$Pointer$ [2020-10-14 15:47:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~$Pointer$ [2020-10-14 15:47:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2020-10-14 15:47:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2020-10-14 15:47:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2020-10-14 15:47:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2020-10-14 15:47:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2020-10-14 15:47:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 15:47:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 15:47:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 15:47:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 15:47:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 15:47:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 15:47:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-14 15:47:25,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-14 15:47:25,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 15:47:25,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 15:47:25,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 15:47:25,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 15:47:25,759 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2020-10-14 15:47:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mt352_write [2020-10-14 15:47:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure print_err_status [2020-10-14 15:47:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_dvb_urb_data_copy [2020-10-14 15:47:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_start_streaming [2020-10-14 15:47:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_stop_streaming [2020-10-14 15:47:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_start_feed [2020-10-14 15:47:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_stop_feed [2020-10-14 15:47:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_dvb_bus_ctrl [2020-10-14 15:47:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2020-10-14 15:47:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure hauppauge_hvr930c_init [2020-10-14 15:47:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure terratec_h5_init [2020-10-14 15:47:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure terratec_htc_stick_init [2020-10-14 15:47:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure terratec_htc_usb_xs_init [2020-10-14 15:47:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pctv_520e_init [2020-10-14 15:47:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_pctv_290e_set_lna [2020-10-14 15:47:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_pctv_292e_set_lna [2020-10-14 15:47:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_mt352_terratec_xs_init [2020-10-14 15:47:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_attach_xc3028 [2020-10-14 15:47:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_register_dvb [2020-10-14 15:47:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_unregister_dvb [2020-10-14 15:47:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_dvb_init [2020-10-14 15:47:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure prevent_sleep [2020-10-14 15:47:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_dvb_fini [2020-10-14 15:47:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_dvb_suspend [2020-10-14 15:47:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_dvb_resume [2020-10-14 15:47:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_dvb_register [2020-10-14 15:47:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_dvb_unregister [2020-10-14 15:47:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_em28xx_ops_1 [2020-10-14 15:47:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 15:47:25,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2020-10-14 15:47:25,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2020-10-14 15:47:25,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_7 [2020-10-14 15:47:25,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_8 [2020-10-14 15:47:25,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_9 [2020-10-14 15:47:25,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_10 [2020-10-14 15:47:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_11 [2020-10-14 15:47:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_12 [2020-10-14 15:47:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_13 [2020-10-14 15:47:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_14 [2020-10-14 15:47:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_15 [2020-10-14 15:47:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_16 [2020-10-14 15:47:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_17 [2020-10-14 15:47:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_18 [2020-10-14 15:47:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_19 [2020-10-14 15:47:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_20 [2020-10-14 15:47:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_21 [2020-10-14 15:47:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_22 [2020-10-14 15:47:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_23 [2020-10-14 15:47:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_24 [2020-10-14 15:47:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_25 [2020-10-14 15:47:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_26 [2020-10-14 15:47:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_27 [2020-10-14 15:47:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_28 [2020-10-14 15:47:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_29 [2020-10-14 15:47:25,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 15:47:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-14 15:47:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-14 15:47:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-14 15:47:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-14 15:47:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-10-14 15:47:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-10-14 15:47:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-10-14 15:47:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-10-14 15:47:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-10-14 15:47:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 15:47:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-14 15:47:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-14 15:47:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2020-10-14 15:47:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2020-10-14 15:47:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2020-10-14 15:47:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2020-10-14 15:47:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_init [2020-10-14 15:47:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2020-10-14 15:47:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_swfilter [2020-10-14 15:47:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_init [2020-10-14 15:47:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2020-10-14 15:47:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_detach [2020-10-14 15:47:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_resume [2020-10-14 15:47:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_suspend [2020-10-14 15:47:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_init [2020-10-14 15:47:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2020-10-14 15:47:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_adapter [2020-10-14 15:47:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_frontend [2020-10-14 15:47:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2020-10-14 15:47:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2020-10-14 15:47:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_alloc_urbs [2020-10-14 15:47:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_gpio_set [2020-10-14 15:47:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_init_usb_xfer [2020-10-14 15:47:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_register_extension [2020-10-14 15:47:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_mode [2020-10-14 15:47:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_setup_xc3028 [2020-10-14 15:47:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_stop_urbs [2020-10-14 15:47:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_uninit_usb_xfer [2020-10-14 15:47:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_unregister_extension [2020-10-14 15:47:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg [2020-10-14 15:47:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg_bits [2020-10-14 15:47:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2020-10-14 15:47:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request_one [2020-10-14 15:47:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_send [2020-10-14 15:47:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_device [2020-10-14 15:47:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2020-10-14 15:47:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-10-14 15:47:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_1 [2020-10-14 15:47:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 15:47:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-14 15:47:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_start_1 [2020-10-14 15:47:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop_1 [2020-10-14 15:47:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2020-10-14 15:47:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-14 15:47:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-14 15:47:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-14 15:47:25,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 15:47:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-14 15:47:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2020-10-14 15:47:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-14 15:47:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-14 15:47:25,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 15:47:25,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 15:47:25,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 15:47:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 15:47:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 15:47:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 15:47:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-14 15:47:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 15:47:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-14 15:47:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-10-14 15:47:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2020-10-14 15:47:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2020-10-14 15:47:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2020-10-14 15:47:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-14 15:47:25,778 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-14 15:47:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-14 15:47:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2020-10-14 15:47:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2020-10-14 15:47:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 15:47:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2020-10-14 15:47:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 15:47:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2020-10-14 15:47:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2020-10-14 15:47:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2020-10-14 15:47:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2020-10-14 15:47:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_7 [2020-10-14 15:47:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_9 [2020-10-14 15:47:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_10 [2020-10-14 15:47:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_12 [2020-10-14 15:47:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_16 [2020-10-14 15:47:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_19 [2020-10-14 15:47:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_21 [2020-10-14 15:47:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_23 [2020-10-14 15:47:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_25 [2020-10-14 15:47:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2020-10-14 15:47:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_8 [2020-10-14 15:47:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_11 [2020-10-14 15:47:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_13 [2020-10-14 15:47:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_14 [2020-10-14 15:47:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_15 [2020-10-14 15:47:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_17 [2020-10-14 15:47:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_18 [2020-10-14 15:47:25,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_20 [2020-10-14 15:47:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_22 [2020-10-14 15:47:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_24 [2020-10-14 15:47:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_26 [2020-10-14 15:47:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_27 [2020-10-14 15:47:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_28 [2020-10-14 15:47:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_29 [2020-10-14 15:47:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-10-14 15:47:25,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-10-14 15:47:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 15:47:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 15:47:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 15:47:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 15:47:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 15:47:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 15:47:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 15:47:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 15:47:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 15:47:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 15:47:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 15:47:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 15:47:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 15:47:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_em28xx_ops_1 [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-14 15:47:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure down [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure up [2020-10-14 15:47:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-14 15:47:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_send [2020-10-14 15:47:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_device [2020-10-14 15:47:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2020-10-14 15:47:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_adapter [2020-10-14 15:47:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2020-10-14 15:47:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_frontend [2020-10-14 15:47:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2020-10-14 15:47:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_detach [2020-10-14 15:47:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_suspend [2020-10-14 15:47:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_resume [2020-10-14 15:47:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg [2020-10-14 15:47:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg_bits [2020-10-14 15:47:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_alloc_urbs [2020-10-14 15:47:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_init_usb_xfer [2020-10-14 15:47:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_uninit_usb_xfer [2020-10-14 15:47:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_stop_urbs [2020-10-14 15:47:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_mode [2020-10-14 15:47:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_gpio_set [2020-10-14 15:47:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_register_extension [2020-10-14 15:47:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_unregister_extension [2020-10-14 15:47:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_tuner_callback [2020-10-14 15:47:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_setup_xc3028 [2020-10-14 15:47:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_free_device [2020-10-14 15:47:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_init [2020-10-14 15:47:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2020-10-14 15:47:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_swfilter [2020-10-14 15:47:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2020-10-14 15:47:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_init [2020-10-14 15:47:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_init [2020-10-14 15:47:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2020-10-14 15:47:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2020-10-14 15:47:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request_one [2020-10-14 15:47:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure mt352_write [2020-10-14 15:47:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-14 15:47:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure print_err_status [2020-10-14 15:47:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_dvb_urb_data_copy [2020-10-14 15:47:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_start_streaming [2020-10-14 15:47:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_stop_streaming [2020-10-14 15:47:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_start_feed [2020-10-14 15:47:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_stop_feed [2020-10-14 15:47:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_dvb_bus_ctrl [2020-10-14 15:47:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2020-10-14 15:47:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-14 15:47:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure hauppauge_hvr930c_init [2020-10-14 15:47:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure terratec_h5_init [2020-10-14 15:47:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure terratec_htc_stick_init [2020-10-14 15:47:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure terratec_htc_usb_xs_init [2020-10-14 15:47:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure pctv_520e_init [2020-10-14 15:47:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_pctv_290e_set_lna [2020-10-14 15:47:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_pctv_292e_set_lna [2020-10-14 15:47:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_mt352_terratec_xs_init [2020-10-14 15:47:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_attach_xc3028 [2020-10-14 15:47:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_register_dvb [2020-10-14 15:47:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-14 15:47:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_unregister_dvb [2020-10-14 15:47:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_dvb_init [2020-10-14 15:47:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~int~TO~$Pointer$ [2020-10-14 15:47:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~$Pointer$ [2020-10-14 15:47:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2020-10-14 15:47:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure prevent_sleep [2020-10-14 15:47:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_dvb_fini [2020-10-14 15:47:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_dvb_suspend [2020-10-14 15:47:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_dvb_resume [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_dvb_register [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_dvb_unregister [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop_1 [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_start_1 [2020-10-14 15:47:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_1 [2020-10-14 15:47:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 15:47:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 15:47:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-14 15:47:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-14 15:47:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-14 15:47:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-14 15:47:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-10-14 15:47:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-10-14 15:47:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-10-14 15:47:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 15:47:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 15:47:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 15:47:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 15:47:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 15:47:27,557 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 15:47:52,751 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-10-14 15:48:02,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 15:48:02,583 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-14 15:48:02,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:48:02 BoogieIcfgContainer [2020-10-14 15:48:02,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 15:48:02,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 15:48:02,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 15:48:02,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 15:48:02,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:47:21" (1/3) ... [2020-10-14 15:48:02,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7b77b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:48:02, skipping insertion in model container [2020-10-14 15:48:02,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:47:25" (2/3) ... [2020-10-14 15:48:02,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7b77b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:48:02, skipping insertion in model container [2020-10-14 15:48:02,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:48:02" (3/3) ... [2020-10-14 15:48:02,616 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2020-10-14 15:48:02,626 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 15:48:02,638 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 15:48:02,652 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 15:48:02,686 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 15:48:02,686 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 15:48:02,686 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 15:48:02,686 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 15:48:02,687 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 15:48:02,687 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 15:48:02,687 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 15:48:02,687 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 15:48:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states. [2020-10-14 15:48:02,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 15:48:02,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 15:48:02,760 INFO L422 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] [2020-10-14 15:48:02,761 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 15:48:02,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 15:48:02,767 INFO L82 PathProgramCache]: Analyzing trace with hash -2009173921, now seen corresponding path program 1 times [2020-10-14 15:48:02,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 15:48:02,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164212794] [2020-10-14 15:48:02,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 15:48:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:48:05,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:06,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:13,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:48:13,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 15:48:13,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 15:48:13,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8909 [2020-10-14 15:48:13,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:48:13,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:48:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:48:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 15:48:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:48:13,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 15:48:26,446 WARN L193 SmtUtils]: Spent 12.20 s on a formula simplification that was a NOOP. DAG size: 1765 [2020-10-14 15:48:26,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 15:48:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:48:26,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:32,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:48:32,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 15:48:32,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:48:32,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5796 [2020-10-14 15:48:32,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:48:32,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:48:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:48:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:48:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:48:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 15:48:32,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 15:48:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:48:32,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:32,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:48:32,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 15:48:32,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:48:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 15:48:32,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:48:32,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:48:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:48:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 15:48:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:48:32,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:48:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 15:48:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:48:32,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:32,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:48:32,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 15:48:32,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:48:32,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 15:48:32,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:48:32,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:48:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:48:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:48:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:48:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:48:32,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 15:48:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:48:33,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:33,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:48:33,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 15:48:33,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:48:33,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 15:48:33,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:48:33,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:48:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:48:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 15:48:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:48:33,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:48:33,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 15:48:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:48:33,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:33,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:48:33,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 15:48:33,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:48:33,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 15:48:33,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:48:33,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:48:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:48:33,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 15:48:33,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:48:33,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 15:48:33,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 15:48:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:48:33,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:33,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:48:33,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 15:48:33,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:48:33,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 15:48:33,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:48:33,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:48:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:48:33,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 15:48:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:48:33,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 15:48:33,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 15:48:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:48:33,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:48:33,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:48:33,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 15:48:33,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:48:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 15:48:33,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:48:33,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:48:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:48:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:48:33,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:48:33,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:48:33,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 15:48:33,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164212794] [2020-10-14 15:48:33,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 15:48:33,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 15:48:33,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70812189] [2020-10-14 15:48:33,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 15:48:33,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 15:48:33,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 15:48:33,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 15:48:33,407 INFO L87 Difference]: Start difference. First operand 1866 states. Second operand 5 states. [2020-10-14 15:48:45,146 WARN L193 SmtUtils]: Spent 11.64 s on a formula simplification that was a NOOP. DAG size: 1768 [2020-10-14 15:50:17,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 15:50:17,790 INFO L93 Difference]: Finished difference Result 3736 states and 5631 transitions. [2020-10-14 15:50:17,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 15:50:17,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-10-14 15:50:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 15:50:17,831 INFO L225 Difference]: With dead ends: 3736 [2020-10-14 15:50:17,831 INFO L226 Difference]: Without dead ends: 1929 [2020-10-14 15:50:17,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 15:50:17,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2020-10-14 15:50:18,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1788. [2020-10-14 15:50:18,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1788 states. [2020-10-14 15:50:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2520 transitions. [2020-10-14 15:50:18,704 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2520 transitions. Word has length 44 [2020-10-14 15:50:18,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 15:50:18,704 INFO L479 AbstractCegarLoop]: Abstraction has 1788 states and 2520 transitions. [2020-10-14 15:50:18,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 15:50:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2520 transitions. [2020-10-14 15:50:18,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 15:50:18,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 15:50:18,710 INFO L422 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] [2020-10-14 15:50:18,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 15:50:18,710 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 15:50:18,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 15:50:18,711 INFO L82 PathProgramCache]: Analyzing trace with hash -622970527, now seen corresponding path program 1 times [2020-10-14 15:50:18,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 15:50:18,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211389660] [2020-10-14 15:50:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 15:50:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:50:19,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:50:26,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:50:26,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 15:50:26,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:50:26,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7197 [2020-10-14 15:50:26,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:50:26,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:50:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 15:50:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 15:50:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 15:50:26,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:50:39,366 WARN L193 SmtUtils]: Spent 12.58 s on a formula simplification that was a NOOP. DAG size: 1765 [2020-10-14 15:50:39,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 15:50:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:50:39,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:50:42,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:50:42,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 15:50:42,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:50:42,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3152 [2020-10-14 15:50:42,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:50:42,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:50:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:50:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:50:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:50:42,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:50:42,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 15:50:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:50:42,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:50:43,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:50:43,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 15:50:43,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:50:43,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 15:50:43,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:50:43,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:50:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:50:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:50:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:50:43,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:50:43,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 15:50:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:50:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:50:43,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:50:43,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 15:50:43,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:50:43,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 15:50:43,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:50:43,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:50:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:50:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:50:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:50:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:50:43,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 15:50:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:50:43,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:50:43,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:50:43,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 15:50:43,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:50:43,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 15:50:43,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:50:43,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:50:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:50:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:50:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:50:43,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:50:43,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 15:50:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:50:43,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:50:43,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:50:43,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 15:50:43,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:50:43,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 15:50:43,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:50:43,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:50:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:50:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:50:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:50:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:50:43,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 15:50:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:50:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:50:43,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:50:43,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 15:50:43,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:50:43,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 15:50:43,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:50:43,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:50:43,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:50:43,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 15:50:43,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:50:43,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:50:43,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 15:50:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 15:50:43,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 15:50:43,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 15:50:43,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 15:50:43,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 15:50:43,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 15:50:43,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 15:50:43,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 15:50:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 15:50:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 15:50:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 15:50:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 15:50:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 15:50:43,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211389660] [2020-10-14 15:50:43,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 15:50:43,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 15:50:43,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953187255] [2020-10-14 15:50:43,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 15:50:43,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 15:50:43,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 15:50:43,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 15:50:43,621 INFO L87 Difference]: Start difference. First operand 1788 states and 2520 transitions. Second operand 6 states. [2020-10-14 15:50:56,162 WARN L193 SmtUtils]: Spent 12.49 s on a formula simplification that was a NOOP. DAG size: 1768