/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:36:35,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:36:35,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:36:35,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:36:35,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:36:35,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:36:35,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:36:35,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:36:35,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:36:35,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:36:35,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:36:35,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:36:35,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:36:35,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:36:35,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:36:35,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:36:35,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:36:35,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:36:35,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:36:35,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:36:35,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:36:35,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:36:35,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:36:35,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:36:35,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:36:35,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:36:35,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:36:35,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:36:35,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:36:35,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:36:35,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:36:35,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:36:35,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:36:35,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:36:35,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:36:35,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:36:35,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:36:35,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:36:35,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:36:35,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:36:35,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:36:35,274 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 [2020-09-24 15:36:35,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:36:35,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:36:35,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:36:35,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:36:35,324 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:36:35,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:36:35,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:36:35,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:36:35,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:36:35,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:36:35,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:36:35,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:36:35,327 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:36:35,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:36:35,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:36:35,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:36:35,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:36:35,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:36:35,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:36:35,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:36:35,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:36:35,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:36:35,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:36:35,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:36:35,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:36:35,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:36:35,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 15:36:35,330 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 15:36:35,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:36:35,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:36:35,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:36:35,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:36:35,844 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:36:35,845 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 15:36:35,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c373a6ce4/49d5c803b9a443b5872530d5f13157c8/FLAGdd92ebbc4 [2020-09-24 15:36:36,726 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:36:36,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 15:36:36,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c373a6ce4/49d5c803b9a443b5872530d5f13157c8/FLAGdd92ebbc4 [2020-09-24 15:36:36,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c373a6ce4/49d5c803b9a443b5872530d5f13157c8 [2020-09-24 15:36:36,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:36:36,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:36:36,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:36:36,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:36:36,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:36:36,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:36:36" (1/1) ... [2020-09-24 15:36:36,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626b66d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:36, skipping insertion in model container [2020-09-24 15:36:36,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:36:36" (1/1) ... [2020-09-24 15:36:36,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:36:36,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:36:38,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:36:38,468 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:36:38,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:36:38,827 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:36:38,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38 WrapperNode [2020-09-24 15:36:38,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:36:38,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:36:38,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:36:38,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:36:38,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (1/1) ... [2020-09-24 15:36:38,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (1/1) ... [2020-09-24 15:36:38,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (1/1) ... [2020-09-24 15:36:38,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (1/1) ... [2020-09-24 15:36:38,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (1/1) ... [2020-09-24 15:36:39,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (1/1) ... [2020-09-24 15:36:39,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (1/1) ... [2020-09-24 15:36:39,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:36:39,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:36:39,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:36:39,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:36:39,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (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 [2020-09-24 15:36:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:36:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:36:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-24 15:36:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-24 15:36:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-24 15:36:39,169 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-24 15:36:39,170 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-24 15:36:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-24 15:36:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-24 15:36:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 15:36:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 15:36:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 15:36:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 15:36:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 15:36:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 15:36:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 15:36:39,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 15:36:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 15:36:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 15:36:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 15:36:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 15:36:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-24 15:36:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 15:36:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-24 15:36:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-24 15:36:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-24 15:36:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-24 15:36:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-24 15:36:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-24 15:36:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-24 15:36:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-24 15:36:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-24 15:36:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-24 15:36:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-24 15:36:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-24 15:36:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-24 15:36:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-24 15:36:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-24 15:36:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-24 15:36:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:36:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 15:36:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 15:36:39,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 15:36:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 15:36:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 15:36:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2020-09-24 15:36:39,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_13 [2020-09-24 15:36:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_14 [2020-09-24 15:36:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 15:36:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 15:36:39,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 15:36:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 15:36:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 15:36:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 15:36:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 15:36:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 15:36:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 15:36:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 15:36:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 15:36:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 15:36:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 15:36:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 15:36:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 15:36:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 15:36:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 15:36:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-24 15:36:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-24 15:36:39,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-24 15:36:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-24 15:36:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-24 15:36:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-24 15:36:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-24 15:36:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-24 15:36:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-24 15:36:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 15:36:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-24 15:36:39,197 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-24 15:36:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-24 15:36:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-24 15:36:39,200 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-24 15:36:39,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 15:36:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 15:36:39,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 15:36:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:36:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 15:36:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 15:36:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-24 15:36:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-24 15:36:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-24 15:36:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-24 15:36:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-24 15:36:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-24 15:36:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 15:36:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-24 15:36:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-24 15:36:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 15:36:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-24 15:36:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-24 15:36:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-24 15:36:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 15:36:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 15:36:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 15:36:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 15:36:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 15:36:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 15:36:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 15:36:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 15:36:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 15:36:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 15:36:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 15:36:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 15:36:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:36:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 15:36:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:36:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 15:36:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 15:36:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 15:36:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:36:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 15:36:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 15:36:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 15:36:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 15:36:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 15:36:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 15:36:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-24 15:36:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-24 15:36:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-24 15:36:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-24 15:36:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-24 15:36:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-24 15:36:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-24 15:36:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2020-09-24 15:36:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-24 15:36:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_13 [2020-09-24 15:36:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_14 [2020-09-24 15:36:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-24 15:36:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-24 15:36:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-24 15:36:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 15:36:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-24 15:36:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-24 15:36:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-24 15:36:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-24 15:36:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-24 15:36:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-24 15:36:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-24 15:36:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-24 15:36:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-24 15:36:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-24 15:36:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-24 15:36:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-24 15:36:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-24 15:36:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:36:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:36:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:36:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:36:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:36:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:36:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-24 15:36:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-24 15:36:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-24 15:36:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 15:36:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 15:36:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:36:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 15:36:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 15:36:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 15:36:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 15:36:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 15:36:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 15:36:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 15:36:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 15:36:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 15:36:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 15:36:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 15:36:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 15:36:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 15:36:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 15:36:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:36:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:36:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:36:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:36:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 15:36:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 15:36:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 15:36:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 15:36:40,261 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 15:36:42,037 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:36:42,038 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:36:42,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:36:42 BoogieIcfgContainer [2020-09-24 15:36:42,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:36:42,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:36:42,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:36:42,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:36:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:36:36" (1/3) ... [2020-09-24 15:36:42,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda90ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:36:42, skipping insertion in model container [2020-09-24 15:36:42,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:38" (2/3) ... [2020-09-24 15:36:42,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda90ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:36:42, skipping insertion in model container [2020-09-24 15:36:42,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:36:42" (3/3) ... [2020-09-24 15:36:42,060 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 15:36:42,071 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:36:42,083 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:36:42,101 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:36:42,136 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:36:42,136 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:36:42,136 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:36:42,136 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:36:42,136 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:36:42,137 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:36:42,137 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:36:42,137 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:36:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states. [2020-09-24 15:36:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-09-24 15:36:42,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:36:42,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:36:42,206 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:36:42,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:36:42,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1326592749, now seen corresponding path program 1 times [2020-09-24 15:36:42,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:36:42,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745953788] [2020-09-24 15:36:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:36:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:44,742 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-24 15:36:44,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:36:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:45,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-24 15:36:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:45,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:36:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:45,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-09-24 15:36:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:45,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-09-24 15:36:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:45,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:36:45,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745953788] [2020-09-24 15:36:45,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:36:45,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:36:45,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241853464] [2020-09-24 15:36:45,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:36:45,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:36:45,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:36:45,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:36:45,439 INFO L87 Difference]: Start difference. First operand 1502 states. Second operand 6 states. [2020-09-24 15:36:48,820 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 528 [2020-09-24 15:37:00,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:37:00,896 INFO L93 Difference]: Finished difference Result 3058 states and 3708 transitions. [2020-09-24 15:37:00,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:37:00,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2020-09-24 15:37:00,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:37:00,936 INFO L225 Difference]: With dead ends: 3058 [2020-09-24 15:37:00,937 INFO L226 Difference]: Without dead ends: 1953 [2020-09-24 15:37:00,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:37:00,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2020-09-24 15:37:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1466. [2020-09-24 15:37:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1466 states. [2020-09-24 15:37:01,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1688 transitions. [2020-09-24 15:37:01,239 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1688 transitions. Word has length 316 [2020-09-24 15:37:01,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:37:01,241 INFO L479 AbstractCegarLoop]: Abstraction has 1466 states and 1688 transitions. [2020-09-24 15:37:01,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:37:01,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1688 transitions. [2020-09-24 15:37:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-09-24 15:37:01,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:37:01,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:37:01,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:37:01,254 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:37:01,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:37:01,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1550398358, now seen corresponding path program 1 times [2020-09-24 15:37:01,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:37:01,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374277887] [2020-09-24 15:37:01,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:37:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:03,161 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-24 15:37:03,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:37:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-24 15:37:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:03,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:37:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:03,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-24 15:37:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:03,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:37:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:03,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-09-24 15:37:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:37:03,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374277887] [2020-09-24 15:37:03,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:37:03,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:37:03,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520791006] [2020-09-24 15:37:03,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:37:03,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:37:03,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:37:03,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:37:03,863 INFO L87 Difference]: Start difference. First operand 1466 states and 1688 transitions. Second operand 7 states. [2020-09-24 15:37:05,307 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 529 [2020-09-24 15:37:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:37:20,809 INFO L93 Difference]: Finished difference Result 2847 states and 3359 transitions. [2020-09-24 15:37:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:37:20,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 383 [2020-09-24 15:37:20,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:37:20,821 INFO L225 Difference]: With dead ends: 2847 [2020-09-24 15:37:20,822 INFO L226 Difference]: Without dead ends: 1660 [2020-09-24 15:37:20,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:37:20,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2020-09-24 15:37:20,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1467. [2020-09-24 15:37:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1467 states. [2020-09-24 15:37:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1689 transitions. [2020-09-24 15:37:20,987 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1689 transitions. Word has length 383 [2020-09-24 15:37:20,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:37:20,988 INFO L479 AbstractCegarLoop]: Abstraction has 1467 states and 1689 transitions. [2020-09-24 15:37:20,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:37:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1689 transitions. [2020-09-24 15:37:20,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-09-24 15:37:20,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:37:20,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:37:20,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:37:20,997 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:37:20,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:37:20,997 INFO L82 PathProgramCache]: Analyzing trace with hash 348022099, now seen corresponding path program 1 times [2020-09-24 15:37:20,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:37:20,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197367636] [2020-09-24 15:37:20,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:37:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:22,911 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-24 15:37:22,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:37:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:23,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-24 15:37:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:23,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:37:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:23,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-24 15:37:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:23,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:37:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:23,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-09-24 15:37:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:37:23,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197367636] [2020-09-24 15:37:23,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:37:23,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:37:23,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577554256] [2020-09-24 15:37:23,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:37:23,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:37:23,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:37:23,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:37:23,988 INFO L87 Difference]: Start difference. First operand 1467 states and 1689 transitions. Second operand 8 states. [2020-09-24 15:37:25,480 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 529 [2020-09-24 15:37:29,058 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 531