/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 06:30:20,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 06:30:20,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 06:30:20,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 06:30:20,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 06:30:20,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 06:30:20,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 06:30:20,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 06:30:20,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 06:30:20,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 06:30:20,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 06:30:20,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 06:30:20,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 06:30:20,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 06:30:20,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 06:30:20,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 06:30:20,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 06:30:20,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 06:30:20,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 06:30:20,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 06:30:20,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 06:30:20,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 06:30:20,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 06:30:20,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 06:30:20,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 06:30:20,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 06:30:20,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 06:30:20,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 06:30:20,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 06:30:20,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 06:30:20,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 06:30:20,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 06:30:20,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 06:30:20,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 06:30:20,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 06:30:20,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 06:30:20,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 06:30:20,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 06:30:20,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 06:30:20,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 06:30:20,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 06:30:20,336 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 [2020-10-15 06:30:20,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 06:30:20,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 06:30:20,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 06:30:20,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 06:30:20,379 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 06:30:20,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 06:30:20,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 06:30:20,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 06:30:20,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 06:30:20,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 06:30:20,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 06:30:20,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 06:30:20,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 06:30:20,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 06:30:20,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 06:30:20,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 06:30:20,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 06:30:20,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 06:30:20,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:30:20,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 06:30:20,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 06:30:20,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 06:30:20,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 06:30:20,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 06:30:20,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 06:30:20,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 06:30:20,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 06:30:20,385 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 06:30:20,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 06:30:20,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 06:30:20,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 06:30:20,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 06:30:20,728 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 06:30:20,728 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-15 06:30:20,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81ab9f1c5/209e03a1206446f88cfc09e26736a8e1/FLAG794e136ea [2020-10-15 06:30:21,576 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 06:30:21,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-15 06:30:21,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81ab9f1c5/209e03a1206446f88cfc09e26736a8e1/FLAG794e136ea [2020-10-15 06:30:22,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81ab9f1c5/209e03a1206446f88cfc09e26736a8e1 [2020-10-15 06:30:22,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 06:30:22,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 06:30:22,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 06:30:22,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 06:30:22,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 06:30:22,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:30:22" (1/1) ... [2020-10-15 06:30:22,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610ce734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:22, skipping insertion in model container [2020-10-15 06:30:22,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:30:22" (1/1) ... [2020-10-15 06:30:22,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 06:30:22,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 06:30:23,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:30:23,956 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 06:30:24,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:30:24,603 INFO L208 MainTranslator]: Completed translation [2020-10-15 06:30:24,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24 WrapperNode [2020-10-15 06:30:24,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 06:30:24,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 06:30:24,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 06:30:24,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 06:30:24,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 06:30:24,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 06:30:24,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 06:30:24,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 06:30:24,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 06:30:24,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 06:30:25,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (1/1) ... [2020-10-15 06:30:25,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 06:30:25,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 06:30:25,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 06:30:25,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 06:30:25,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (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 [2020-10-15 06:30:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 06:30:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 06:30:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-15 06:30:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-15 06:30:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-15 06:30:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-15 06:30:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-15 06:30:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-15 06:30:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-15 06:30:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-15 06:30:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-15 06:30:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-15 06:30:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-15 06:30:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-15 06:30:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-15 06:30:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-15 06:30:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-15 06:30:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-15 06:30:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-15 06:30:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-15 06:30:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-15 06:30:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-15 06:30:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2020-10-15 06:30:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure test_channelmap [2020-10-15 06:30:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2020-10-15 06:30:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 06:30:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-15 06:30:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 06:30:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-15 06:30:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-15 06:30:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-15 06:30:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2020-10-15 06:30:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-15 06:30:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-15 06:30:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-15 06:30:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2020-10-15 06:30:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2020-10-15 06:30:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2020-10-15 06:30:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_send [2020-10-15 06:30:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_recv [2020-10-15 06:30:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_parse [2020-10-15 06:30:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_thread [2020-10-15 06:30:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_close [2020-10-15 06:30:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_open [2020-10-15 06:30:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_send_bh [2020-10-15 06:30:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_keepalive [2020-10-15 06:30:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_timeout [2020-10-15 06:30:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_dmsg [2020-10-15 06:30:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_dctrl [2020-10-15 06:30:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2020-10-15 06:30:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2020-10-15 06:30:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_dctrl [2020-10-15 06:30:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmsg [2020-10-15 06:30:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2020-10-15 06:30:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_bctrl [2020-10-15 06:30:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure release_card [2020-10-15 06:30:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_cleanup [2020-10-15 06:30:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure init_card [2020-10-15 06:30:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_init [2020-10-15 06:30:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 06:30:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-15 06:30:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-15 06:30:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-15 06:30:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-15 06:30:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-15 06:30:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-15 06:30:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-15 06:30:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_law_to_4bit [2020-10-15 06:30:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_to_law [2020-10-15 06:30:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_alaw_to_ulaw [2020-10-15 06:30:25,235 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_ulaw_to_alaw [2020-10-15 06:30:25,235 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_free [2020-10-15 06:30:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_alloc [2020-10-15 06:30:25,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2020-10-15 06:30:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2020-10-15 06:30:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2020-10-15 06:30:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_18 [2020-10-15 06:30:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2020-10-15 06:30:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2020-10-15 06:30:25,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2020-10-15 06:30:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-15 06:30:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-15 06:30:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-15 06:30:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-15 06:30:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-15 06:30:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-15 06:30:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-15 06:30:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-15 06:30:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-15 06:30:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-15 06:30:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-15 06:30:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-15 06:30:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-15 06:30:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-15 06:30:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-15 06:30:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-15 06:30:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-15 06:30:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 06:30:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 06:30:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2020-10-15 06:30:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-15 06:30:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2020-10-15 06:30:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-15 06:30:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-15 06:30:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-15 06:30:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-15 06:30:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-15 06:30:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure allow_signal [2020-10-15 06:30:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2020-10-15 06:30:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-15 06:30:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-15 06:30:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2020-10-15 06:30:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2020-10-15 06:30:25,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_recvmsg [2020-10-15 06:30:25,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_sendmsg [2020-10-15 06:30:25,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2020-10-15 06:30:25,252 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-15 06:30:25,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2020-10-15 06:30:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2020-10-15 06:30:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2020-10-15 06:30:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2020-10-15 06:30:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2020-10-15 06:30:25,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2020-10-15 06:30:25,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2020-10-15 06:30:25,259 INFO L138 BoogieDeclarations]: Found implementation of procedure memchr_inv [2020-10-15 06:30:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2020-10-15 06:30:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-15 06:30:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-15 06:30:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-15 06:30:25,261 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-15 06:30:25,261 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2020-10-15 06:30:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2020-10-15 06:30:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2020-10-15 06:30:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2020-10-15 06:30:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure send_sig [2020-10-15 06:30:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-15 06:30:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-15 06:30:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_create [2020-10-15 06:30:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_release [2020-10-15 06:30:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2020-10-15 06:30:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2020-10-15 06:30:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2020-10-15 06:30:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2020-10-15 06:30:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2020-10-15 06:30:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 06:30:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-15 06:30:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 06:30:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-15 06:30:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-15 06:30:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-15 06:30:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-15 06:30:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 06:30:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-15 06:30:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-15 06:30:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-15 06:30:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-15 06:30:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-15 06:30:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-15 06:30:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-15 06:30:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 06:30:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-15 06:30:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-15 06:30:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 06:30:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-15 06:30:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-15 06:30:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-15 06:30:25,279 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-15 06:30:25,279 INFO L130 BoogieDeclarations]: Found specification of procedure memchr_inv [2020-10-15 06:30:25,279 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-15 06:30:25,279 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-15 06:30:25,279 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2020-10-15 06:30:25,280 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-15 06:30:25,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-15 06:30:25,280 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-15 06:30:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-15 06:30:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-15 06:30:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-15 06:30:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-15 06:30:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-15 06:30:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-15 06:30:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-15 06:30:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-15 06:30:25,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-15 06:30:25,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-15 06:30:25,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-15 06:30:25,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-15 06:30:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 06:30:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-15 06:30:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-15 06:30:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-15 06:30:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-15 06:30:25,285 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-15 06:30:25,285 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-15 06:30:25,285 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-15 06:30:25,285 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-15 06:30:25,285 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-15 06:30:25,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 06:30:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 06:30:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 06:30:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2020-10-15 06:30:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-15 06:30:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2020-10-15 06:30:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2020-10-15 06:30:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2020-10-15 06:30:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-15 06:30:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2020-10-15 06:30:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2020-10-15 06:30:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2020-10-15 06:30:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2020-10-15 06:30:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2020-10-15 06:30:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure test_channelmap [2020-10-15 06:30:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2020-10-15 06:30:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure sock_create [2020-10-15 06:30:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure sock_release [2020-10-15 06:30:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_sendmsg [2020-10-15 06:30:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_recvmsg [2020-10-15 06:30:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 06:30:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 06:30:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 06:30:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 06:30:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-15 06:30:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 06:30:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 06:30:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-15 06:30:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-15 06:30:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-15 06:30:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-15 06:30:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-15 06:30:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2020-10-15 06:30:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2020-10-15 06:30:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-15 06:30:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-15 06:30:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-15 06:30:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2020-10-15 06:30:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2020-10-15 06:30:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure send_sig [2020-10-15 06:30:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure allow_signal [2020-10-15 06:30:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-15 06:30:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-15 06:30:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2020-10-15 06:30:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-15 06:30:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2020-10-15 06:30:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-15 06:30:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2020-10-15 06:30:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-15 06:30:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2020-10-15 06:30:25,300 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2020-10-15 06:30:25,300 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2020-10-15 06:30:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2020-10-15 06:30:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2020-10-15 06:30:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2020-10-15 06:30:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2020-10-15 06:30:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2020-10-15 06:30:25,302 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2020-10-15 06:30:25,302 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_law_to_4bit [2020-10-15 06:30:25,302 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_to_law [2020-10-15 06:30:25,302 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_alaw_to_ulaw [2020-10-15 06:30:25,302 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_ulaw_to_alaw [2020-10-15 06:30:25,303 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_free [2020-10-15 06:30:25,303 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_alloc [2020-10-15 06:30:25,303 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_send [2020-10-15 06:30:25,303 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_recv [2020-10-15 06:30:25,303 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_parse [2020-10-15 06:30:25,303 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_thread [2020-10-15 06:30:25,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-15 06:30:25,308 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_close [2020-10-15 06:30:25,309 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_open [2020-10-15 06:30:25,309 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_send_bh [2020-10-15 06:30:25,309 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_keepalive [2020-10-15 06:30:25,309 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_timeout [2020-10-15 06:30:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure handle_dmsg [2020-10-15 06:30:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure channel_dctrl [2020-10-15 06:30:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2020-10-15 06:30:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2020-10-15 06:30:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_dctrl [2020-10-15 06:30:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmsg [2020-10-15 06:30:25,311 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2020-10-15 06:30:25,311 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_bctrl [2020-10-15 06:30:25,311 INFO L130 BoogieDeclarations]: Found specification of procedure release_card [2020-10-15 06:30:25,311 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_cleanup [2020-10-15 06:30:25,311 INFO L130 BoogieDeclarations]: Found specification of procedure init_card [2020-10-15 06:30:25,312 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_init [2020-10-15 06:30:25,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 06:30:25,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 06:30:25,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 06:30:25,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_18 [2020-10-15 06:30:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2020-10-15 06:30:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2020-10-15 06:30:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2020-10-15 06:30:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2020-10-15 06:30:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2020-10-15 06:30:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2020-10-15 06:30:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2020-10-15 06:30:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2020-10-15 06:30:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-15 06:30:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-15 06:30:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-15 06:30:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-15 06:30:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-15 06:30:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-15 06:30:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-15 06:30:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-15 06:30:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-15 06:30:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-15 06:30:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-15 06:30:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-15 06:30:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 06:30:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-15 06:30:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 06:30:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 06:30:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 06:30:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 06:30:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 06:30:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-15 06:30:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-15 06:30:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-15 06:30:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-15 06:30:39,223 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 06:30:39,224 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 06:30:39,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:30:39 BoogieIcfgContainer [2020-10-15 06:30:39,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 06:30:39,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 06:30:39,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 06:30:39,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 06:30:39,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:30:22" (1/3) ... [2020-10-15 06:30:39,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44adcfed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:30:39, skipping insertion in model container [2020-10-15 06:30:39,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:30:24" (2/3) ... [2020-10-15 06:30:39,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44adcfed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:30:39, skipping insertion in model container [2020-10-15 06:30:39,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:30:39" (3/3) ... [2020-10-15 06:30:39,244 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-15 06:30:39,255 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 06:30:39,265 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 06:30:39,280 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 06:30:39,309 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 06:30:39,310 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 06:30:39,310 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 06:30:39,310 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 06:30:39,310 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 06:30:39,310 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 06:30:39,310 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 06:30:39,310 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 06:30:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states. [2020-10-15 06:30:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-15 06:30:39,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:30:39,359 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] [2020-10-15 06:30:39,359 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:30:39,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:30:39,365 INFO L82 PathProgramCache]: Analyzing trace with hash -574548870, now seen corresponding path program 1 times [2020-10-15 06:30:39,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:30:39,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724506960] [2020-10-15 06:30:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:30:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:30:40,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:30:41,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:30:46,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:30:46,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 06:30:46,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:30:46,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6401 [2020-10-15 06:30:46,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:30:46,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:30:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:30:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 06:30:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 06:30:46,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 06:30:53,999 WARN L193 SmtUtils]: Spent 7.01 s on a formula simplification that was a NOOP. DAG size: 1201 [2020-10-15 06:30:54,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:30:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:30:54,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:30:56,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:30:56,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:30:56,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:30:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2611 [2020-10-15 06:30:56,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:30:56,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:30:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:30:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:30:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:30:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:30:56,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:30:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:30:56,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:30:56,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:30:56,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:30:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:30:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 06:30:56,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:30:56,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:30:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:30:56,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:30:56,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:30:56,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:30:56,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 06:30:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:30:56,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:30:57,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:30:57,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 06:30:57,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:30:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 06:30:57,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:30:57,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:30:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:30:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:30:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 06:30:57,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 06:30:57,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 06:30:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:30:57,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:30:57,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:30:57,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 06:30:57,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:30:57,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 06:30:57,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:30:57,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:30:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:30:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:30:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:30:57,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:30:57,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:30:57,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724506960] [2020-10-15 06:30:57,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:30:57,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 06:30:57,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397127673] [2020-10-15 06:30:57,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 06:30:57,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:30:57,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 06:30:57,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 06:30:57,181 INFO L87 Difference]: Start difference. First operand 1081 states. Second operand 7 states. [2020-10-15 06:31:04,394 WARN L193 SmtUtils]: Spent 7.14 s on a formula simplification that was a NOOP. DAG size: 1207 [2020-10-15 06:31:13,798 WARN L193 SmtUtils]: Spent 6.92 s on a formula simplification that was a NOOP. DAG size: 1209 [2020-10-15 06:31:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:31:34,380 INFO L93 Difference]: Finished difference Result 1573 states and 2134 transitions. [2020-10-15 06:31:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 06:31:34,382 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-10-15 06:31:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:31:34,415 INFO L225 Difference]: With dead ends: 1573 [2020-10-15 06:31:34,416 INFO L226 Difference]: Without dead ends: 882 [2020-10-15 06:31:34,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-15 06:31:34,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-10-15 06:31:34,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 682. [2020-10-15 06:31:34,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2020-10-15 06:31:34,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 877 transitions. [2020-10-15 06:31:34,897 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 877 transitions. Word has length 32 [2020-10-15 06:31:34,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:31:34,898 INFO L479 AbstractCegarLoop]: Abstraction has 682 states and 877 transitions. [2020-10-15 06:31:34,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 06:31:34,898 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 877 transitions. [2020-10-15 06:31:34,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-15 06:31:34,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:31:34,900 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] [2020-10-15 06:31:34,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 06:31:34,901 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:31:34,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:31:34,901 INFO L82 PathProgramCache]: Analyzing trace with hash -631732400, now seen corresponding path program 1 times [2020-10-15 06:31:34,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:31:34,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3926313] [2020-10-15 06:31:34,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:31:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:31:35,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:31:35,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:31:42,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:31:42,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 06:31:42,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:31:42,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7534 [2020-10-15 06:31:42,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:31:42,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:31:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:31:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 06:31:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 06:31:42,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 06:31:50,150 WARN L193 SmtUtils]: Spent 7.17 s on a formula simplification that was a NOOP. DAG size: 1201 [2020-10-15 06:31:50,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:31:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:31:50,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:31:52,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:31:52,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:31:52,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:31:52,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2549 [2020-10-15 06:31:52,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:31:52,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:31:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:31:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:31:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:31:52,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:31:52,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:31:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:31:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:31:53,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:31:53,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:31:53,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:31:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:31:53,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:31:53,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:31:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:31:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:31:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:31:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:31:53,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 06:31:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:31:53,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:31:53,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:31:53,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 06:31:53,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:31:53,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 06:31:53,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:31:53,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:31:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:31:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:31:53,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 06:31:53,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:31:53,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 06:31:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:31:53,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:31:53,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:31:53,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 06:31:53,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:31:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:31:53,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:31:53,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:31:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:31:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:31:53,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:31:53,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:31:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:31:53,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3926313] [2020-10-15 06:31:53,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:31:53,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 06:31:53,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197367871] [2020-10-15 06:31:53,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 06:31:53,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:31:53,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 06:31:53,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 06:31:53,215 INFO L87 Difference]: Start difference. First operand 682 states and 877 transitions. Second operand 7 states. [2020-10-15 06:32:00,156 WARN L193 SmtUtils]: Spent 6.90 s on a formula simplification that was a NOOP. DAG size: 1207 [2020-10-15 06:32:09,707 WARN L193 SmtUtils]: Spent 7.12 s on a formula simplification that was a NOOP. DAG size: 1209 [2020-10-15 06:32:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:32:31,744 INFO L93 Difference]: Finished difference Result 884 states and 1190 transitions. [2020-10-15 06:32:31,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 06:32:31,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-10-15 06:32:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:32:31,755 INFO L225 Difference]: With dead ends: 884 [2020-10-15 06:32:31,760 INFO L226 Difference]: Without dead ends: 881 [2020-10-15 06:32:31,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-15 06:32:31,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-10-15 06:32:32,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 681. [2020-10-15 06:32:32,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-10-15 06:32:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 875 transitions. [2020-10-15 06:32:32,171 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 875 transitions. Word has length 33 [2020-10-15 06:32:32,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:32:32,171 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 875 transitions. [2020-10-15 06:32:32,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 06:32:32,171 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 875 transitions. [2020-10-15 06:32:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-15 06:32:32,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:32:32,174 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] [2020-10-15 06:32:32,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 06:32:32,174 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:32:32,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:32:32,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1890550333, now seen corresponding path program 1 times [2020-10-15 06:32:32,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:32:32,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941947553] [2020-10-15 06:32:32,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:32:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:32:32,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:32:39,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:32:39,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 06:32:39,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:32:39,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6643 [2020-10-15 06:32:39,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:32:39,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:32:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:32:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 06:32:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:32:39,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:32:46,068 WARN L193 SmtUtils]: Spent 6.84 s on a formula simplification that was a NOOP. DAG size: 1201 [2020-10-15 06:32:46,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:32:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:32:46,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:32:47,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:32:47,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:32:47,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:32:47,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1585 [2020-10-15 06:32:47,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:32:47,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:32:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:32:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:32:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:32:47,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:32:47,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:32:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:32:47,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:32:47,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:32:47,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:32:47,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:32:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:32:47,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:32:47,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:32:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:32:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:32:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:32:47,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:32:47,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 06:32:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:32:47,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:32:47,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:32:47,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 06:32:47,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:32:47,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 06:32:47,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:32:47,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:32:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:32:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 06:32:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:32:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:32:48,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 06:32:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:32:48,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:32:48,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:32:48,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 06:32:48,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:32:48,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:32:48,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:32:48,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:32:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:32:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:32:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:32:48,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:32:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:32:48,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941947553] [2020-10-15 06:32:48,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:32:48,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 06:32:48,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687509488] [2020-10-15 06:32:48,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 06:32:48,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:32:48,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 06:32:48,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 06:32:48,055 INFO L87 Difference]: Start difference. First operand 681 states and 875 transitions. Second operand 7 states. [2020-10-15 06:32:55,218 WARN L193 SmtUtils]: Spent 7.12 s on a formula simplification that was a NOOP. DAG size: 1207 [2020-10-15 06:33:04,693 WARN L193 SmtUtils]: Spent 6.92 s on a formula simplification that was a NOOP. DAG size: 1209 [2020-10-15 06:33:44,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:33:44,198 INFO L93 Difference]: Finished difference Result 1821 states and 2418 transitions. [2020-10-15 06:33:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 06:33:44,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-10-15 06:33:44,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:33:44,212 INFO L225 Difference]: With dead ends: 1821 [2020-10-15 06:33:44,212 INFO L226 Difference]: Without dead ends: 1417 [2020-10-15 06:33:44,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-15 06:33:44,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2020-10-15 06:33:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1088. [2020-10-15 06:33:44,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-10-15 06:33:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1399 transitions. [2020-10-15 06:33:44,846 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1399 transitions. Word has length 34 [2020-10-15 06:33:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:33:44,847 INFO L479 AbstractCegarLoop]: Abstraction has 1088 states and 1399 transitions. [2020-10-15 06:33:44,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 06:33:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1399 transitions. [2020-10-15 06:33:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-15 06:33:44,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:33:44,849 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, 1, 1, 1, 1, 1, 1] [2020-10-15 06:33:44,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 06:33:44,850 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:33:44,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:33:44,850 INFO L82 PathProgramCache]: Analyzing trace with hash 585006904, now seen corresponding path program 1 times [2020-10-15 06:33:44,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:33:44,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769083446] [2020-10-15 06:33:44,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:33:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:33:45,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:33:58,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:33:58,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 06:33:58,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:33:58,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12994 [2020-10-15 06:33:58,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:33:58,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:33:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 06:33:58,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:33:58,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 06:33:58,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:34:05,610 WARN L193 SmtUtils]: Spent 7.26 s on a formula simplification that was a NOOP. DAG size: 1201 [2020-10-15 06:34:05,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:34:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:34:05,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:34:09,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:34:09,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:34:09,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:34:09,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3500 [2020-10-15 06:34:09,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:34:09,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:34:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:34:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:34:09,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:34:09,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:34:09,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:34:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:34:09,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:34:09,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:34:09,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:34:09,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:34:09,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:34:09,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:34:09,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:34:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:34:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:34:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:34:09,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:34:09,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-15 06:34:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:34:09,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:34:09,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:34:09,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:34:09,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-15 06:34:09,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:34:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-15 06:34:09,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:34:09,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:34:09,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 06:34:09,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 06:34:09,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 06:34:09,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:34:10,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:34:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:34:10,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:34:10,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:34:10,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:34:10,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:34:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 06:34:10,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:34:10,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:34:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:34:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:34:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:34:10,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:34:10,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 06:34:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:34:10,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:34:10,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:34:10,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:34:10,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:34:10,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 06:34:10,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:34:10,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:34:10,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:34:10,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:34:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:34:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:34:10,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 06:34:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:34:10,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:34:10,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:34:10,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:34:10,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:34:10,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:34:10,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:34:10,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:34:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:34:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:34:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:34:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:34:10,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-15 06:34:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:34:10,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:34:10,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:34:10,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:34:10,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:34:10,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 06:34:10,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:34:10,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:34:10,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 06:34:10,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 06:34:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 06:34:10,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:34:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:34:10,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769083446] [2020-10-15 06:34:10,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:34:10,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 06:34:10,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894125016] [2020-10-15 06:34:10,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 06:34:10,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:34:10,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 06:34:10,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-15 06:34:10,370 INFO L87 Difference]: Start difference. First operand 1088 states and 1399 transitions. Second operand 10 states.