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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 11:32:56,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 11:32:56,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 11:32:56,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 11:32:56,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 11:32:56,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 11:32:56,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 11:32:56,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 11:32:56,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 11:32:56,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 11:32:56,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 11:32:56,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 11:32:56,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 11:32:56,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 11:32:56,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 11:32:56,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 11:32:56,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 11:32:56,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 11:32:56,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 11:32:56,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 11:32:56,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 11:32:56,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 11:32:56,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 11:32:56,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 11:32:56,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 11:32:56,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 11:32:56,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 11:32:56,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 11:32:56,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 11:32:56,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 11:32:56,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 11:32:56,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 11:32:56,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 11:32:56,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 11:32:56,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 11:32:56,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 11:32:56,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 11:32:56,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 11:32:56,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 11:32:56,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 11:32:56,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 11:32:56,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 11:32:56,246 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 11:32:56,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 11:32:56,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 11:32:56,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 11:32:56,249 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 11:32:56,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 11:32:56,249 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 11:32:56,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 11:32:56,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 11:32:56,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 11:32:56,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 11:32:56,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 11:32:56,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 11:32:56,252 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 11:32:56,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 11:32:56,252 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 11:32:56,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 11:32:56,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 11:32:56,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 11:32:56,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 11:32:56,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 11:32:56,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 11:32:56,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 11:32:56,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 11:32:56,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 11:32:56,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 11:32:56,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 11:32:56,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 11:32:56,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 11:32:56,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 11:32:56,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 11:32:56,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 11:32:56,573 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 11:32:56,573 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 11:32:56,574 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-10-07 11:32:56,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae03ec63c/e7a4477064d84ec0b999af4c4ad5c7b5/FLAG7b00b90c0 [2019-10-07 11:32:57,557 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 11:32:57,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-10-07 11:32:57,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae03ec63c/e7a4477064d84ec0b999af4c4ad5c7b5/FLAG7b00b90c0 [2019-10-07 11:32:58,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae03ec63c/e7a4477064d84ec0b999af4c4ad5c7b5 [2019-10-07 11:32:58,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 11:32:58,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 11:32:58,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 11:32:58,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 11:32:58,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 11:32:58,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 11:32:58" (1/1) ... [2019-10-07 11:32:58,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f9a405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:32:58, skipping insertion in model container [2019-10-07 11:32:58,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 11:32:58" (1/1) ... [2019-10-07 11:32:58,034 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 11:32:58,188 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 11:33:00,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 11:33:00,618 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 11:33:01,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 11:33:01,304 INFO L192 MainTranslator]: Completed translation [2019-10-07 11:33:01,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01 WrapperNode [2019-10-07 11:33:01,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 11:33:01,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 11:33:01,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 11:33:01,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 11:33:01,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (1/1) ... [2019-10-07 11:33:01,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (1/1) ... [2019-10-07 11:33:01,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (1/1) ... [2019-10-07 11:33:01,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (1/1) ... [2019-10-07 11:33:01,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (1/1) ... [2019-10-07 11:33:01,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (1/1) ... [2019-10-07 11:33:01,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (1/1) ... [2019-10-07 11:33:01,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 11:33:01,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 11:33:01,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 11:33:01,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 11:33:01,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-07 11:33:01,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 11:33:01,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 11:33:01,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-07 11:33:01,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-10-07 11:33:01,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-07 11:33:01,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-07 11:33:01,800 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 11:33:01,800 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-07 11:33:01,800 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 11:33:01,801 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2019-10-07 11:33:01,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2019-10-07 11:33:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2019-10-07 11:33:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2019-10-07 11:33:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-07 11:33:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-07 11:33:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-07 11:33:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2019-10-07 11:33:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 11:33:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 11:33:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-07 11:33:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-07 11:33:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 11:33:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 11:33:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 11:33:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 11:33:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 11:33:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2019-10-07 11:33:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 11:33:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 11:33:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2019-10-07 11:33:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2019-10-07 11:33:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2019-10-07 11:33:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-10-07 11:33:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_logical_block_size [2019-10-07 11:33:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock_nointr [2019-10-07 11:33:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2019-10-07 11:33:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2019-10-07 11:33:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2019-10-07 11:33:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_format_to_md_layout [2019-10-07 11:33:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure get_raid_type [2019-10-07 11:33:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure context_alloc [2019-10-07 11:33:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2019-10-07 11:33:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_parms [2019-10-07 11:33:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_region_size [2019-10-07 11:33:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_raid_redundancy [2019-10-07 11:33:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_raid_params [2019-10-07 11:33:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2019-10-07 11:33:01,810 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_is_congested [2019-10-07 11:33:01,811 INFO L138 BoogieDeclarations]: Found implementation of procedure read_disk_sb [2019-10-07 11:33:01,811 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2019-10-07 11:33:01,811 INFO L138 BoogieDeclarations]: Found implementation of procedure super_load [2019-10-07 11:33:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure super_init_validation [2019-10-07 11:33:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2019-10-07 11:33:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure analyse_superblocks [2019-10-07 11:33:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_discard_support [2019-10-07 11:33:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_ctr [2019-10-07 11:33:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2019-10-07 11:33:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2019-10-07 11:33:01,813 INFO L138 BoogieDeclarations]: Found implementation of procedure decipher_sync_action [2019-10-07 11:33:01,813 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2019-10-07 11:33:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2019-10-07 11:33:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2019-10-07 11:33:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2019-10-07 11:33:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_presuspend [2019-10-07 11:33:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_postsuspend [2019-10-07 11:33:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure attempt_restore_of_faulty_devices [2019-10-07 11:33:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_resume [2019-10-07 11:33:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2019-10-07 11:33:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_raid_init [2019-10-07 11:33:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_raid_exit [2019-10-07 11:33:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-10-07 11:33:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-10-07 11:33:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-10-07 11:33:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_2 [2019-10-07 11:33:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-10-07 11:33:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-10-07 11:33:01,818 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-10-07 11:33:01,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 11:33:01,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-07 11:33:01,818 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 11:33:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 11:33:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-10-07 11:33:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-10-07 11:33:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-10-07 11:33:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-10-07 11:33:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-10-07 11:33:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-10-07 11:33:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-07 11:33:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2019-10-07 11:33:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_13 [2019-10-07 11:33:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-10-07 11:33:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-07 11:33:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-10-07 11:33:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_17 [2019-10-07 11:33:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_18 [2019-10-07 11:33:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_20 [2019-10-07 11:33:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 11:33:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-07 11:33:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 11:33:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 11:33:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 11:33:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 11:33:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-07 11:33:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-07 11:33:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-07 11:33:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-07 11:33:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-07 11:33:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-07 11:33:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-07 11:33:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-07 11:33:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-07 11:33:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-07 11:33:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-07 11:33:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-07 11:33:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-07 11:33:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-07 11:33:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-07 11:33:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-07 11:33:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-07 11:33:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-07 11:33:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-07 11:33:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-07 11:33:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-07 11:33:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-07 11:33:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-07 11:33:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-07 11:33:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-07 11:33:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-07 11:33:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-07 11:33:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-07 11:33:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-07 11:33:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-07 11:33:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-07 11:33:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-07 11:33:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-07 11:33:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_reconfig_mutex_of_mddev [2019-10-07 11:33:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_reconfig_mutex_of_mddev [2019-10-07 11:33:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2019-10-07 11:33:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_reconfig_mutex_of_mddev [2019-10-07 11:33:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_reconfig_mutex_of_mddev [2019-10-07 11:33:01,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_reconfig_mutex_of_mddev [2019-10-07 11:33:01,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reconfig_mutex_of_mddev [2019-10-07 11:33:01,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_reconfig_mutex_of_mddev [2019-10-07 11:33:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_reconfig_mutex_of_mddev [2019-10-07 11:33:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_reconfig_mutex_of_mddev [2019-10-07 11:33:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_reconfig_mutex_of_mddev [2019-10-07 11:33:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 11:33:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-07 11:33:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 11:33:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-07 11:33:01,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-07 11:33:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages_current [2019-10-07 11:33:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_load [2019-10-07 11:33:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2019-10-07 11:33:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2019-10-07 11:33:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2019-10-07 11:33:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2019-10-07 11:33:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2019-10-07 11:33:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_set_target_max_io_len [2019-10-07 11:33:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_add_target_callbacks [2019-10-07 11:33:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2019-10-07 11:33:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2019-10-07 11:33:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2019-10-07 11:33:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-10-07 11:33:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoull [2019-10-07 11:33:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 11:33:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_preresume_2 [2019-10-07 11:33:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-07 11:33:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-07 11:33:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure md_error [2019-10-07 11:33:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure md_rdev_clear [2019-10-07 11:33:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure md_rdev_init [2019-10-07 11:33:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure md_reap_sync_thread [2019-10-07 11:33:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure md_run [2019-10-07 11:33:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2019-10-07 11:33:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop_writes [2019-10-07 11:33:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2019-10-07 11:33:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_congested [2019-10-07 11:33:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_init [2019-10-07 11:33:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2019-10-07 11:33:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2019-10-07 11:33:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2019-10-07 11:33:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-07 11:33:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-07 11:33:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-07 11:33:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-07 11:33:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 11:33:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2019-10-07 11:33:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-10-07 11:33:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-07 11:33:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_set_cache_size [2019-10-07 11:33:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2019-10-07 11:33:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2019-10-07 11:33:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2019-10-07 11:33:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 11:33:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 11:33:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 11:33:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 11:33:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 11:33:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 11:33:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 11:33:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-07 11:33:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 11:33:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 11:33:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2019-10-07 11:33:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2019-10-07 11:33:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2019-10-07 11:33:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoull [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 11:33:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-07 11:33:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-07 11:33:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 11:33:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-07 11:33:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-07 11:33:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-07 11:33:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 11:33:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-07 11:33:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-10-07 11:33:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-07 11:33:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 11:33:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 11:33:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2019-10-07 11:33:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-07 11:33:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-07 11:33:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_13 [2019-10-07 11:33:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_20 [2019-10-07 11:33:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-07 11:33:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-07 11:33:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-10-07 11:33:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-07 11:33:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 11:33:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 11:33:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 11:33:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 11:33:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 11:33:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 11:33:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 11:33:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 11:33:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 11:33:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 11:33:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-07 11:33:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-07 11:33:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 11:33:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 11:33:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 11:33:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 11:33:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 11:33:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-07 11:33:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_17 [2019-10-07 11:33:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-07 11:33:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-10-07 11:33:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2019-10-07 11:33:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-10-07 11:33:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_18 [2019-10-07 11:33:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-07 11:33:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-07 11:33:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-07 11:33:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-07 11:33:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-07 11:33:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-07 11:33:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-07 11:33:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_reconfig_mutex_of_mddev [2019-10-07 11:33:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2019-10-07 11:33:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_reconfig_mutex_of_mddev [2019-10-07 11:33:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-07 11:33:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-07 11:33:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-10-07 11:33:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-10-07 11:33:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-10-07 11:33:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-10-07 11:33:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-10-07 11:33:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-10-07 11:33:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-10-07 11:33:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages_current [2019-10-07 11:33:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2019-10-07 11:33:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 11:33:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 11:33:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 11:33:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 11:33:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-10-07 11:33:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-10-07 11:33:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-10-07 11:33:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_2 [2019-10-07 11:33:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-10-07 11:33:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-10-07 11:33:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-10-07 11:33:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2019-10-07 11:33:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2019-10-07 11:33:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2019-10-07 11:33:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2019-10-07 11:33:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2019-10-07 11:33:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2019-10-07 11:33:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-10-07 11:33:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_logical_block_size [2019-10-07 11:33:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock_nointr [2019-10-07 11:33:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2019-10-07 11:33:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2019-10-07 11:33:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure md_reap_sync_thread [2019-10-07 11:33:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure md_error [2019-10-07 11:33:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_congested [2019-10-07 11:33:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2019-10-07 11:33:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_init [2019-10-07 11:33:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure md_run [2019-10-07 11:33:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop_writes [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure md_rdev_init [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure md_rdev_clear [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_set_cache_size [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_load [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2019-10-07 11:33:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2019-10-07 11:33:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2019-10-07 11:33:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2019-10-07 11:33:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_add_target_callbacks [2019-10-07 11:33:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure dm_set_target_max_io_len [2019-10-07 11:33:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2019-10-07 11:33:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2019-10-07 11:33:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2019-10-07 11:33:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 11:33:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2019-10-07 11:33:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2019-10-07 11:33:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_format_to_md_layout [2019-10-07 11:33:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure get_raid_type [2019-10-07 11:33:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure context_alloc [2019-10-07 11:33:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 11:33:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2019-10-07 11:33:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure dev_parms [2019-10-07 11:33:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure validate_region_size [2019-10-07 11:33:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure validate_raid_redundancy [2019-10-07 11:33:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure parse_raid_params [2019-10-07 11:33:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 11:33:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2019-10-07 11:33:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure raid_is_congested [2019-10-07 11:33:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure read_disk_sb [2019-10-07 11:33:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2019-10-07 11:33:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure super_load [2019-10-07 11:33:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure super_init_validation [2019-10-07 11:33:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2019-10-07 11:33:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure analyse_superblocks [2019-10-07 11:33:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure configure_discard_support [2019-10-07 11:33:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure raid_ctr [2019-10-07 11:33:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2019-10-07 11:33:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2019-10-07 11:33:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-07 11:33:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure decipher_sync_action [2019-10-07 11:33:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2019-10-07 11:33:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2019-10-07 11:33:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2019-10-07 11:33:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-10-07 11:33:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2019-10-07 11:33:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure raid_presuspend [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure raid_postsuspend [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure attempt_restore_of_faulty_devices [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure raid_resume [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure dm_raid_init [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure dm_raid_exit [2019-10-07 11:33:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_preresume_2 [2019-10-07 11:33:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 11:33:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 11:33:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 11:33:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 11:33:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-07 11:33:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 11:33:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-07 11:33:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-07 11:33:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-07 11:33:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-07 11:33:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-07 11:33:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-07 11:33:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-07 11:33:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-07 11:33:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-07 11:33:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-07 11:33:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-07 11:33:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-07 11:33:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-07 11:33:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-07 11:33:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-07 11:33:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-07 11:33:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-07 11:33:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-07 11:33:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-07 11:33:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-07 11:33:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-07 11:33:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-07 11:33:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-07 11:33:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-07 11:33:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-07 11:33:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-07 11:33:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_reconfig_mutex_of_mddev [2019-10-07 11:33:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_reconfig_mutex_of_mddev [2019-10-07 11:33:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_reconfig_mutex_of_mddev [2019-10-07 11:33:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reconfig_mutex_of_mddev [2019-10-07 11:33:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_reconfig_mutex_of_mddev [2019-10-07 11:33:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_reconfig_mutex_of_mddev [2019-10-07 11:33:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_reconfig_mutex_of_mddev [2019-10-07 11:33:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_reconfig_mutex_of_mddev [2019-10-07 11:33:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 11:33:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 11:33:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 11:33:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 11:33:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 11:33:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 11:33:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 11:33:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 11:33:03,233 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 11:33:22,591 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 11:33:22,592 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 11:33:22,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 11:33:22 BoogieIcfgContainer [2019-10-07 11:33:22,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 11:33:22,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 11:33:22,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 11:33:22,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 11:33:22,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 11:32:58" (1/3) ... [2019-10-07 11:33:22,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f503df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 11:33:22, skipping insertion in model container [2019-10-07 11:33:22,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 11:33:01" (2/3) ... [2019-10-07 11:33:22,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f503df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 11:33:22, skipping insertion in model container [2019-10-07 11:33:22,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 11:33:22" (3/3) ... [2019-10-07 11:33:22,602 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-10-07 11:33:22,613 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 11:33:22,623 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 11:33:22,638 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 11:33:22,678 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 11:33:22,678 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 11:33:22,679 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 11:33:22,679 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 11:33:22,679 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 11:33:22,679 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 11:33:22,679 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 11:33:22,680 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 11:33:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states. [2019-10-07 11:33:22,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 11:33:22,780 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:22,782 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:22,785 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:22,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:22,794 INFO L82 PathProgramCache]: Analyzing trace with hash 2094315199, now seen corresponding path program 1 times [2019-10-07 11:33:22,804 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:22,805 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:22,805 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:22,806 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:22,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2019-10-07 11:33:23,876 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:23,876 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:23,877 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:33:23,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:33:23,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:33:23,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:23,898 INFO L87 Difference]: Start difference. First operand 1366 states. Second operand 3 states. [2019-10-07 11:33:26,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:26,672 INFO L93 Difference]: Finished difference Result 3347 states and 4705 transitions. [2019-10-07 11:33:26,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:33:26,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-07 11:33:26,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:26,728 INFO L225 Difference]: With dead ends: 3347 [2019-10-07 11:33:26,728 INFO L226 Difference]: Without dead ends: 2214 [2019-10-07 11:33:26,744 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:26,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2019-10-07 11:33:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2211. [2019-10-07 11:33:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2211 states. [2019-10-07 11:33:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3084 transitions. [2019-10-07 11:33:27,030 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3084 transitions. Word has length 156 [2019-10-07 11:33:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:27,031 INFO L462 AbstractCegarLoop]: Abstraction has 2211 states and 3084 transitions. [2019-10-07 11:33:27,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:33:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3084 transitions. [2019-10-07 11:33:27,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 11:33:27,036 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:27,036 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:27,037 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:27,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:27,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1725734990, now seen corresponding path program 1 times [2019-10-07 11:33:27,038 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:27,038 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:27,038 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:27,038 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:27,677 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2019-10-07 11:33:27,677 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:27,677 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:27,678 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:33:27,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:33:27,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:33:27,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:27,683 INFO L87 Difference]: Start difference. First operand 2211 states and 3084 transitions. Second operand 3 states. [2019-10-07 11:33:27,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:27,767 INFO L93 Difference]: Finished difference Result 2213 states and 3085 transitions. [2019-10-07 11:33:27,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:33:27,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-07 11:33:27,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:27,784 INFO L225 Difference]: With dead ends: 2213 [2019-10-07 11:33:27,785 INFO L226 Difference]: Without dead ends: 2210 [2019-10-07 11:33:27,787 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2019-10-07 11:33:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2210. [2019-10-07 11:33:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2210 states. [2019-10-07 11:33:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2210 states to 2210 states and 3082 transitions. [2019-10-07 11:33:27,919 INFO L78 Accepts]: Start accepts. Automaton has 2210 states and 3082 transitions. Word has length 160 [2019-10-07 11:33:27,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:27,921 INFO L462 AbstractCegarLoop]: Abstraction has 2210 states and 3082 transitions. [2019-10-07 11:33:27,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:33:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2210 states and 3082 transitions. [2019-10-07 11:33:27,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-07 11:33:27,930 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:27,930 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:27,931 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:27,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:27,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1957596530, now seen corresponding path program 1 times [2019-10-07 11:33:27,932 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:27,932 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:27,932 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:27,936 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:27,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:28,355 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2019-10-07 11:33:28,355 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:28,356 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:28,356 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:33:28,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:33:28,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:33:28,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:28,357 INFO L87 Difference]: Start difference. First operand 2210 states and 3082 transitions. Second operand 3 states. [2019-10-07 11:33:28,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:28,438 INFO L93 Difference]: Finished difference Result 2212 states and 3083 transitions. [2019-10-07 11:33:28,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:33:28,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-07 11:33:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:28,467 INFO L225 Difference]: With dead ends: 2212 [2019-10-07 11:33:28,467 INFO L226 Difference]: Without dead ends: 2209 [2019-10-07 11:33:28,473 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:28,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2019-10-07 11:33:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2209. [2019-10-07 11:33:28,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2019-10-07 11:33:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3080 transitions. [2019-10-07 11:33:28,587 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3080 transitions. Word has length 161 [2019-10-07 11:33:28,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:28,588 INFO L462 AbstractCegarLoop]: Abstraction has 2209 states and 3080 transitions. [2019-10-07 11:33:28,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:33:28,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3080 transitions. [2019-10-07 11:33:28,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 11:33:28,593 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:28,594 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:28,594 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:28,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:28,595 INFO L82 PathProgramCache]: Analyzing trace with hash 555374545, now seen corresponding path program 1 times [2019-10-07 11:33:28,595 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:28,595 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:28,596 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:28,596 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:28,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2019-10-07 11:33:29,045 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:29,046 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:29,046 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:33:29,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:33:29,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:33:29,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:29,050 INFO L87 Difference]: Start difference. First operand 2209 states and 3080 transitions. Second operand 3 states. [2019-10-07 11:33:29,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:29,153 INFO L93 Difference]: Finished difference Result 2211 states and 3081 transitions. [2019-10-07 11:33:29,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:33:29,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-07 11:33:29,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:29,171 INFO L225 Difference]: With dead ends: 2211 [2019-10-07 11:33:29,172 INFO L226 Difference]: Without dead ends: 2208 [2019-10-07 11:33:29,175 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:29,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2019-10-07 11:33:29,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2208. [2019-10-07 11:33:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2208 states. [2019-10-07 11:33:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3078 transitions. [2019-10-07 11:33:29,349 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3078 transitions. Word has length 162 [2019-10-07 11:33:29,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:29,351 INFO L462 AbstractCegarLoop]: Abstraction has 2208 states and 3078 transitions. [2019-10-07 11:33:29,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:33:29,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3078 transitions. [2019-10-07 11:33:29,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 11:33:29,357 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:29,358 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:29,358 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:29,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:29,359 INFO L82 PathProgramCache]: Analyzing trace with hash 36170837, now seen corresponding path program 1 times [2019-10-07 11:33:29,359 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:29,360 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:29,360 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:29,360 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:29,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:30,508 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2019-10-07 11:33:30,509 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:30,510 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:30,510 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:33:30,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:33:30,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:33:30,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:30,514 INFO L87 Difference]: Start difference. First operand 2208 states and 3078 transitions. Second operand 3 states. [2019-10-07 11:33:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:30,681 INFO L93 Difference]: Finished difference Result 4320 states and 6045 transitions. [2019-10-07 11:33:30,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:33:30,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-10-07 11:33:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:30,709 INFO L225 Difference]: With dead ends: 4320 [2019-10-07 11:33:30,709 INFO L226 Difference]: Without dead ends: 4304 [2019-10-07 11:33:30,712 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2019-10-07 11:33:30,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304. [2019-10-07 11:33:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4304 states. [2019-10-07 11:33:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6025 transitions. [2019-10-07 11:33:30,932 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 6025 transitions. Word has length 163 [2019-10-07 11:33:30,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:30,933 INFO L462 AbstractCegarLoop]: Abstraction has 4304 states and 6025 transitions. [2019-10-07 11:33:30,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:33:30,933 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 6025 transitions. [2019-10-07 11:33:30,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2019-10-07 11:33:30,953 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:30,954 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:30,954 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:30,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:30,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1735195271, now seen corresponding path program 1 times [2019-10-07 11:33:30,955 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:30,955 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:30,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:30,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:30,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-10-07 11:33:31,406 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:31,407 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:31,407 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:33:31,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:33:31,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:33:31,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:31,409 INFO L87 Difference]: Start difference. First operand 4304 states and 6025 transitions. Second operand 3 states. [2019-10-07 11:33:32,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:32,314 INFO L93 Difference]: Finished difference Result 8778 states and 12283 transitions. [2019-10-07 11:33:32,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:33:32,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2019-10-07 11:33:32,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:32,350 INFO L225 Difference]: With dead ends: 8778 [2019-10-07 11:33:32,351 INFO L226 Difference]: Without dead ends: 4520 [2019-10-07 11:33:32,374 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:32,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4520 states. [2019-10-07 11:33:32,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4520 to 4505. [2019-10-07 11:33:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4505 states. [2019-10-07 11:33:32,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 6301 transitions. [2019-10-07 11:33:32,763 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 6301 transitions. Word has length 309 [2019-10-07 11:33:32,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:32,764 INFO L462 AbstractCegarLoop]: Abstraction has 4505 states and 6301 transitions. [2019-10-07 11:33:32,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:33:32,764 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 6301 transitions. [2019-10-07 11:33:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2019-10-07 11:33:32,781 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:32,782 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:32,782 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:32,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:32,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1714410350, now seen corresponding path program 1 times [2019-10-07 11:33:32,783 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:32,783 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:32,783 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:32,783 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:32,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:33,331 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:33:33,331 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:33,331 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:33,332 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 11:33:33,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 11:33:33,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 11:33:33,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:33,334 INFO L87 Difference]: Start difference. First operand 4505 states and 6301 transitions. Second operand 3 states. [2019-10-07 11:33:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:33,543 INFO L93 Difference]: Finished difference Result 9063 states and 12711 transitions. [2019-10-07 11:33:33,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 11:33:33,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 333 [2019-10-07 11:33:33,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:33,571 INFO L225 Difference]: With dead ends: 9063 [2019-10-07 11:33:33,571 INFO L226 Difference]: Without dead ends: 4613 [2019-10-07 11:33:33,588 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 11:33:33,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4613 states. [2019-10-07 11:33:33,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4613 to 4581. [2019-10-07 11:33:33,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4581 states. [2019-10-07 11:33:33,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 6421 transitions. [2019-10-07 11:33:33,826 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 6421 transitions. Word has length 333 [2019-10-07 11:33:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:33,827 INFO L462 AbstractCegarLoop]: Abstraction has 4581 states and 6421 transitions. [2019-10-07 11:33:33,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 11:33:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 6421 transitions. [2019-10-07 11:33:33,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2019-10-07 11:33:33,848 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:33,849 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:33,849 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:33,849 INFO L82 PathProgramCache]: Analyzing trace with hash 2004124233, now seen corresponding path program 1 times [2019-10-07 11:33:33,850 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:33,850 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:33,850 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:33,850 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:33,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:33:34,390 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:34,390 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:34,391 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 11:33:34,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 11:33:34,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 11:33:34,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 11:33:34,392 INFO L87 Difference]: Start difference. First operand 4581 states and 6421 transitions. Second operand 4 states. [2019-10-07 11:33:34,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:34,690 INFO L93 Difference]: Finished difference Result 9155 states and 12855 transitions. [2019-10-07 11:33:34,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 11:33:34,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2019-10-07 11:33:34,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:34,727 INFO L225 Difference]: With dead ends: 9155 [2019-10-07 11:33:34,727 INFO L226 Difference]: Without dead ends: 4629 [2019-10-07 11:33:34,752 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 11:33:34,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2019-10-07 11:33:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4585. [2019-10-07 11:33:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4585 states. [2019-10-07 11:33:35,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4585 states to 4585 states and 6425 transitions. [2019-10-07 11:33:35,022 INFO L78 Accepts]: Start accepts. Automaton has 4585 states and 6425 transitions. Word has length 333 [2019-10-07 11:33:35,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:35,023 INFO L462 AbstractCegarLoop]: Abstraction has 4585 states and 6425 transitions. [2019-10-07 11:33:35,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 11:33:35,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4585 states and 6425 transitions. [2019-10-07 11:33:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2019-10-07 11:33:35,042 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:35,043 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:35,043 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:35,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:35,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1640030404, now seen corresponding path program 1 times [2019-10-07 11:33:35,044 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:35,044 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:35,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:35,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:35,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:35,768 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:33:35,769 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:35,769 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:35,769 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 11:33:35,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 11:33:35,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 11:33:35,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 11:33:35,771 INFO L87 Difference]: Start difference. First operand 4585 states and 6425 transitions. Second operand 5 states. [2019-10-07 11:33:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:36,220 INFO L93 Difference]: Finished difference Result 9147 states and 12829 transitions. [2019-10-07 11:33:36,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 11:33:36,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 334 [2019-10-07 11:33:36,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:36,245 INFO L225 Difference]: With dead ends: 9147 [2019-10-07 11:33:36,245 INFO L226 Difference]: Without dead ends: 4617 [2019-10-07 11:33:36,264 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 11:33:36,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4617 states. [2019-10-07 11:33:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4617 to 4601. [2019-10-07 11:33:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4601 states. [2019-10-07 11:33:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4601 states to 4601 states and 6441 transitions. [2019-10-07 11:33:36,493 INFO L78 Accepts]: Start accepts. Automaton has 4601 states and 6441 transitions. Word has length 334 [2019-10-07 11:33:36,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:36,494 INFO L462 AbstractCegarLoop]: Abstraction has 4601 states and 6441 transitions. [2019-10-07 11:33:36,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 11:33:36,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4601 states and 6441 transitions. [2019-10-07 11:33:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2019-10-07 11:33:36,511 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:36,512 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:36,512 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:36,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:36,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1028490117, now seen corresponding path program 1 times [2019-10-07 11:33:36,513 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:36,513 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:36,513 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:36,513 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:36,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:37,315 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:33:37,315 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:37,316 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:37,316 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 11:33:37,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 11:33:37,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 11:33:37,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 11:33:37,317 INFO L87 Difference]: Start difference. First operand 4601 states and 6441 transitions. Second operand 5 states. [2019-10-07 11:33:37,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:37,556 INFO L93 Difference]: Finished difference Result 9171 states and 12855 transitions. [2019-10-07 11:33:37,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 11:33:37,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 355 [2019-10-07 11:33:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:37,586 INFO L225 Difference]: With dead ends: 9171 [2019-10-07 11:33:37,586 INFO L226 Difference]: Without dead ends: 4625 [2019-10-07 11:33:37,607 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 11:33:37,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4625 states. [2019-10-07 11:33:37,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4625 to 4617. [2019-10-07 11:33:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2019-10-07 11:33:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 6457 transitions. [2019-10-07 11:33:37,874 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 6457 transitions. Word has length 355 [2019-10-07 11:33:37,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:37,875 INFO L462 AbstractCegarLoop]: Abstraction has 4617 states and 6457 transitions. [2019-10-07 11:33:37,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 11:33:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 6457 transitions. [2019-10-07 11:33:37,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2019-10-07 11:33:37,899 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:37,899 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:37,899 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:37,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:37,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1297038942, now seen corresponding path program 1 times [2019-10-07 11:33:37,900 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:37,900 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:37,901 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:37,901 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:37,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:33:38,847 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:38,848 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:38,848 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 11:33:38,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 11:33:38,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 11:33:38,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 11:33:38,849 INFO L87 Difference]: Start difference. First operand 4617 states and 6457 transitions. Second operand 5 states. [2019-10-07 11:33:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:39,062 INFO L93 Difference]: Finished difference Result 9203 states and 12879 transitions. [2019-10-07 11:33:39,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 11:33:39,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 356 [2019-10-07 11:33:39,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:39,093 INFO L225 Difference]: With dead ends: 9203 [2019-10-07 11:33:39,093 INFO L226 Difference]: Without dead ends: 4641 [2019-10-07 11:33:39,118 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 11:33:39,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4641 states. [2019-10-07 11:33:39,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4641 to 4637. [2019-10-07 11:33:39,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4637 states. [2019-10-07 11:33:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6477 transitions. [2019-10-07 11:33:39,340 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6477 transitions. Word has length 356 [2019-10-07 11:33:39,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:39,341 INFO L462 AbstractCegarLoop]: Abstraction has 4637 states and 6477 transitions. [2019-10-07 11:33:39,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 11:33:39,341 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6477 transitions. [2019-10-07 11:33:39,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2019-10-07 11:33:39,358 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:39,359 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:39,359 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:39,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:39,360 INFO L82 PathProgramCache]: Analyzing trace with hash -937668570, now seen corresponding path program 1 times [2019-10-07 11:33:39,360 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:39,360 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:39,360 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:39,360 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:40,151 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:33:40,151 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:40,151 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 11:33:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:33:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:42,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 5460 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-07 11:33:42,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 11:33:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2019-10-07 11:33:42,384 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 11:33:42,411 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 11:33:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:33:42,899 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 11:33:42,900 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6] total 11 [2019-10-07 11:33:42,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 11:33:42,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 11:33:42,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-07 11:33:42,903 INFO L87 Difference]: Start difference. First operand 4637 states and 6477 transitions. Second operand 8 states. [2019-10-07 11:33:53,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:53,510 INFO L93 Difference]: Finished difference Result 11562 states and 16147 transitions. [2019-10-07 11:33:53,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 11:33:53,511 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 357 [2019-10-07 11:33:53,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:53,586 INFO L225 Difference]: With dead ends: 11562 [2019-10-07 11:33:53,586 INFO L226 Difference]: Without dead ends: 11547 [2019-10-07 11:33:53,595 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 709 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-10-07 11:33:53,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11547 states. [2019-10-07 11:33:54,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11547 to 11497. [2019-10-07 11:33:54,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11497 states. [2019-10-07 11:33:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11497 states to 11497 states and 16081 transitions. [2019-10-07 11:33:54,281 INFO L78 Accepts]: Start accepts. Automaton has 11497 states and 16081 transitions. Word has length 357 [2019-10-07 11:33:54,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:54,282 INFO L462 AbstractCegarLoop]: Abstraction has 11497 states and 16081 transitions. [2019-10-07 11:33:54,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 11:33:54,282 INFO L276 IsEmpty]: Start isEmpty. Operand 11497 states and 16081 transitions. [2019-10-07 11:33:54,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2019-10-07 11:33:54,311 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:54,312 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:54,526 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:33:54,527 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:54,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:54,527 INFO L82 PathProgramCache]: Analyzing trace with hash -2018113860, now seen corresponding path program 1 times [2019-10-07 11:33:54,527 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:54,528 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:54,528 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:54,528 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:33:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:33:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:33:56,074 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:56,074 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:33:56,074 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-07 11:33:56,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 11:33:56,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 11:33:56,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-07 11:33:56,076 INFO L87 Difference]: Start difference. First operand 11497 states and 16081 transitions. Second operand 16 states. [2019-10-07 11:33:57,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:33:57,016 INFO L93 Difference]: Finished difference Result 23039 states and 32241 transitions. [2019-10-07 11:33:57,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 11:33:57,017 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 358 [2019-10-07 11:33:57,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:33:57,073 INFO L225 Difference]: With dead ends: 23039 [2019-10-07 11:33:57,073 INFO L226 Difference]: Without dead ends: 11597 [2019-10-07 11:33:57,115 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-07 11:33:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11597 states. [2019-10-07 11:33:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11597 to 11565. [2019-10-07 11:33:57,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11565 states. [2019-10-07 11:33:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11565 states to 11565 states and 16163 transitions. [2019-10-07 11:33:57,693 INFO L78 Accepts]: Start accepts. Automaton has 11565 states and 16163 transitions. Word has length 358 [2019-10-07 11:33:57,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:33:57,694 INFO L462 AbstractCegarLoop]: Abstraction has 11565 states and 16163 transitions. [2019-10-07 11:33:57,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 11:33:57,694 INFO L276 IsEmpty]: Start isEmpty. Operand 11565 states and 16163 transitions. [2019-10-07 11:33:57,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2019-10-07 11:33:57,723 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:33:57,724 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:33:57,724 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:33:57,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:33:57,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1179588837, now seen corresponding path program 1 times [2019-10-07 11:33:57,725 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:33:57,725 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:33:57,726 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:57,726 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:33:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:34:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:34:03,008 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2019-10-07 11:34:03,009 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:34:03,009 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 11:34:03,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:34:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:34:05,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 5519 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-07 11:34:05,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 11:34:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-10-07 11:34:05,218 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 11:34:05,754 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:34:05,755 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 11:34:05,755 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6] total 10 [2019-10-07 11:34:05,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 11:34:05,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 11:34:05,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-10-07 11:34:05,760 INFO L87 Difference]: Start difference. First operand 11565 states and 16163 transitions. Second operand 6 states. [2019-10-07 11:34:06,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:34:06,993 INFO L93 Difference]: Finished difference Result 23105 states and 32335 transitions. [2019-10-07 11:34:06,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 11:34:06,993 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 372 [2019-10-07 11:34:06,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:34:07,043 INFO L225 Difference]: With dead ends: 23105 [2019-10-07 11:34:07,043 INFO L226 Difference]: Without dead ends: 11595 [2019-10-07 11:34:07,080 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 741 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-10-07 11:34:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11595 states. [2019-10-07 11:34:07,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11595 to 11575. [2019-10-07 11:34:07,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11575 states. [2019-10-07 11:34:07,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11575 states to 11575 states and 16173 transitions. [2019-10-07 11:34:07,559 INFO L78 Accepts]: Start accepts. Automaton has 11575 states and 16173 transitions. Word has length 372 [2019-10-07 11:34:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:34:07,559 INFO L462 AbstractCegarLoop]: Abstraction has 11575 states and 16173 transitions. [2019-10-07 11:34:07,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 11:34:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 11575 states and 16173 transitions. [2019-10-07 11:34:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2019-10-07 11:34:07,590 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:34:07,591 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:34:07,806 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:34:07,807 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:34:07,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:34:07,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1481304286, now seen corresponding path program 1 times [2019-10-07 11:34:07,809 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:34:07,809 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:34:07,809 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:34:07,809 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:34:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:34:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:34:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-10-07 11:34:09,209 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:34:09,209 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 11:34:09,209 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-07 11:34:09,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 11:34:09,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 11:34:09,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-07 11:34:09,211 INFO L87 Difference]: Start difference. First operand 11575 states and 16173 transitions. Second operand 16 states. [2019-10-07 11:34:09,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:34:09,940 INFO L93 Difference]: Finished difference Result 23195 states and 32425 transitions. [2019-10-07 11:34:09,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 11:34:09,941 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 375 [2019-10-07 11:34:09,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:34:09,989 INFO L225 Difference]: With dead ends: 23195 [2019-10-07 11:34:09,989 INFO L226 Difference]: Without dead ends: 11675 [2019-10-07 11:34:10,018 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-07 11:34:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11675 states. [2019-10-07 11:34:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11675 to 11575. [2019-10-07 11:34:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11575 states. [2019-10-07 11:34:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11575 states to 11575 states and 16173 transitions. [2019-10-07 11:34:10,626 INFO L78 Accepts]: Start accepts. Automaton has 11575 states and 16173 transitions. Word has length 375 [2019-10-07 11:34:10,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:34:10,627 INFO L462 AbstractCegarLoop]: Abstraction has 11575 states and 16173 transitions. [2019-10-07 11:34:10,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 11:34:10,627 INFO L276 IsEmpty]: Start isEmpty. Operand 11575 states and 16173 transitions. [2019-10-07 11:34:10,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2019-10-07 11:34:10,650 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:34:10,651 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:34:10,651 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:34:10,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:34:10,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1360274479, now seen corresponding path program 1 times [2019-10-07 11:34:10,652 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:34:10,652 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:34:10,652 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:34:10,653 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:34:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:34:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:34:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2019-10-07 11:34:17,298 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:34:17,298 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 11:34:17,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:38:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:38:24,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-07 11:38:24,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 11:38:24,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 11:38:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2019-10-07 11:38:24,649 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 11:38:25,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 11:38:25,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 11:38:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2019-10-07 11:38:25,322 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 11:38:25,322 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 11 [2019-10-07 11:38:25,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 11:38:25,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 11:38:25,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-10-07 11:38:25,325 INFO L87 Difference]: Start difference. First operand 11575 states and 16173 transitions. Second operand 6 states. [2019-10-07 11:38:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 11:38:25,792 INFO L93 Difference]: Finished difference Result 23143 states and 32348 transitions. [2019-10-07 11:38:25,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 11:38:25,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 377 [2019-10-07 11:38:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 11:38:25,838 INFO L225 Difference]: With dead ends: 23143 [2019-10-07 11:38:25,839 INFO L226 Difference]: Without dead ends: 11596 [2019-10-07 11:38:25,873 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 747 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2019-10-07 11:38:25,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11596 states. [2019-10-07 11:38:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11596 to 11576. [2019-10-07 11:38:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11576 states. [2019-10-07 11:38:26,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11576 states to 11576 states and 16174 transitions. [2019-10-07 11:38:26,358 INFO L78 Accepts]: Start accepts. Automaton has 11576 states and 16174 transitions. Word has length 377 [2019-10-07 11:38:26,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 11:38:26,359 INFO L462 AbstractCegarLoop]: Abstraction has 11576 states and 16174 transitions. [2019-10-07 11:38:26,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 11:38:26,360 INFO L276 IsEmpty]: Start isEmpty. Operand 11576 states and 16174 transitions. [2019-10-07 11:38:26,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2019-10-07 11:38:26,418 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 11:38:26,419 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 11:38:26,632 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:38:26,633 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 11:38:26,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 11:38:26,634 INFO L82 PathProgramCache]: Analyzing trace with hash 629919188, now seen corresponding path program 1 times [2019-10-07 11:38:26,635 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 11:38:26,635 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:38:26,636 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:38:26,636 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 11:38:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 11:38:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:38:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2019-10-07 11:38:35,174 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 11:38:35,175 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 11:38:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:38:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 11:38:49,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 5582 conjuncts, 69 conjunts are in the unsatisfiable core [2019-10-07 11:38:49,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 11:38:49,712 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-07 11:38:49,712 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 11:38:49,718 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 11:38:49,718 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 11:38:49,718 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-10-07 11:38:49,798 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 11:38:49,798 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 11:38:49,804 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 11:38:49,805 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 11:38:49,805 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:3 [2019-10-07 11:38:50,827 WARN L860 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.C_memset_#ptr.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_int)| |#Ultimate.C_memset_#ptr.base|) |c_#Ultimate.C_memset_#ptr.offset| |c_#Ultimate.C_memset_#value|)))) is different from true [2019-10-07 11:38:52,738 WARN L860 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.C_memset_#ptr.base| Int)) (= (store |c_old(#memory_int)| |#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_int)| |#Ultimate.C_memset_#ptr.base|) |c_ldv_memset_#in~s.offset| |c_ldv_memset_#in~c|)) |c_#memory_int|)) is different from true [2019-10-07 11:38:52,793 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 11:38:52,793 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 34 [2019-10-07 11:38:52,794 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 11:38:52,830 INFO L567 ElimStorePlain]: treesize reduction 16, result has 56.8 percent of original size [2019-10-07 11:38:52,831 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 11:38:52,831 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2019-10-07 11:38:53,056 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 11:38:53,056 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 11:38:53,065 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 11:38:53,065 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 11:38:53,066 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:3 [2019-10-07 11:38:53,805 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_36| Int)) (and (<= (+ |c_#StackHeapBarrier| 1) |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_36|) (= |c_#memory_int| (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_36| ((as const (Array Int Int)) 0))))) is different from true [2019-10-07 11:38:53,818 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-07 11:38:53,820 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2019-10-07 11:38:53,820 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 11:38:53,830 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 11:38:53,831 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 11:38:53,832 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:22 [2019-10-07 11:38:53,905 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-07 11:38:53,907 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2019-10-07 11:38:53,912 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-07 11:38:53,912 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 11:38:53,914 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 11:38:53,915 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-07 11:38:53,920 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 11:38:53,920 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 11:38:53,921 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:3 [2019-10-07 11:38:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 149 proven. 6 refuted. 0 times theorem prover too weak. 302 trivial. 6 not checked. [2019-10-07 11:38:54,246 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 11:38:58,939 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_main_~#ldvarg14~0.offset_BEFORE_CALL_20| Int) (|v_main_~#ldvarg14~0.base_BEFORE_CALL_20| Int)) (or (exists ((|v_#Ultimate.meminit_#ptr.base_126| Int)) (and (<= (+ |c_#StackHeapBarrier| 1) |v_#Ultimate.meminit_#ptr.base_126|) (< 1 (mod (select (select (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_126| ((as const (Array Int Int)) 0)) |v_main_~#ldvarg14~0.base_BEFORE_CALL_20|) |v_main_~#ldvarg14~0.offset_BEFORE_CALL_20|) 4294967296)))) (<= (mod (select (select |c_#memory_int| |v_main_~#ldvarg14~0.base_BEFORE_CALL_20|) |v_main_~#ldvarg14~0.offset_BEFORE_CALL_20|) 4294967296) 1))) is different from false [2019-10-07 11:39:18,161 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 28 [2019-10-07 11:39:18,373 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 11:39:18,375 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-07 11:39:18,382 INFO L168 Benchmark]: Toolchain (without parser) took 380366.98 ms. Allocated memory was 145.2 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 93.0 MB in the beginning and 938.7 MB in the end (delta: -845.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2019-10-07 11:39:18,384 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 11:39:18,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3289.87 ms. Allocated memory was 145.2 MB in the beginning and 248.5 MB in the end (delta: 103.3 MB). Free memory was 92.7 MB in the beginning and 123.8 MB in the end (delta: -31.1 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. [2019-10-07 11:39:18,387 INFO L168 Benchmark]: Boogie Preprocessor took 396.82 ms. Allocated memory is still 248.5 MB. Free memory was 123.8 MB in the beginning and 93.8 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-10-07 11:39:18,388 INFO L168 Benchmark]: RCFGBuilder took 20890.19 ms. Allocated memory was 248.5 MB in the beginning and 552.1 MB in the end (delta: 303.6 MB). Free memory was 93.8 MB in the beginning and 370.7 MB in the end (delta: -276.8 MB). Peak memory consumption was 352.8 MB. Max. memory is 7.1 GB. [2019-10-07 11:39:18,392 INFO L168 Benchmark]: TraceAbstraction took 355784.00 ms. Allocated memory was 552.1 MB in the beginning and 2.3 GB in the end (delta: 1.7 GB). Free memory was 370.7 MB in the beginning and 938.7 MB in the end (delta: -568.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2019-10-07 11:39:18,395 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3289.87 ms. Allocated memory was 145.2 MB in the beginning and 248.5 MB in the end (delta: 103.3 MB). Free memory was 92.7 MB in the beginning and 123.8 MB in the end (delta: -31.1 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 396.82 ms. Allocated memory is still 248.5 MB. Free memory was 123.8 MB in the beginning and 93.8 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20890.19 ms. Allocated memory was 248.5 MB in the beginning and 552.1 MB in the end (delta: 303.6 MB). Free memory was 93.8 MB in the beginning and 370.7 MB in the end (delta: -276.8 MB). Peak memory consumption was 352.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 355784.00 ms. Allocated memory was 552.1 MB in the beginning and 2.3 GB in the end (delta: 1.7 GB). Free memory was 370.7 MB in the beginning and 938.7 MB in the end (delta: -568.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...