./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a360cb3610b87d6aed13de22db562ec1954f5b73892b256f21f61c8291c93ced --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 16:05:57,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 16:05:57,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 16:05:57,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 16:05:57,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 16:05:57,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 16:05:57,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 16:05:57,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 16:05:57,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 16:05:57,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 16:05:57,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 16:05:57,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 16:05:57,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 16:05:57,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 16:05:57,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 16:05:57,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 16:05:57,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 16:05:58,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 16:05:58,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 16:05:58,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 16:05:58,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 16:05:58,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 16:05:58,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 16:05:58,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 16:05:58,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 16:05:58,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 16:05:58,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 16:05:58,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 16:05:58,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 16:05:58,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 16:05:58,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 16:05:58,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 16:05:58,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 16:05:58,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 16:05:58,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 16:05:58,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 16:05:58,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 16:05:58,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 16:05:58,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 16:05:58,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 16:05:58,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 16:05:58,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 16:05:58,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 16:05:58,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 16:05:58,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 16:05:58,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 16:05:58,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 16:05:58,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 16:05:58,040 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 16:05:58,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 16:05:58,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 16:05:58,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 16:05:58,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 16:05:58,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 16:05:58,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 16:05:58,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 16:05:58,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 16:05:58,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 16:05:58,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 16:05:58,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 16:05:58,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 16:05:58,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:05:58,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 16:05:58,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 16:05:58,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 16:05:58,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 16:05:58,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 16:05:58,043 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 16:05:58,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 16:05:58,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 16:05:58,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 16:05:58,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a360cb3610b87d6aed13de22db562ec1954f5b73892b256f21f61c8291c93ced [2021-11-07 16:05:58,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 16:05:58,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 16:05:58,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 16:05:58,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 16:05:58,250 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 16:05:58,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i [2021-11-07 16:05:58,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c592d06d/2321ba831d5b4d95a7f2af4532239d16/FLAGba7b03af2 [2021-11-07 16:05:59,044 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 16:05:59,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i [2021-11-07 16:05:59,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c592d06d/2321ba831d5b4d95a7f2af4532239d16/FLAGba7b03af2 [2021-11-07 16:05:59,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c592d06d/2321ba831d5b4d95a7f2af4532239d16 [2021-11-07 16:05:59,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 16:05:59,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 16:05:59,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 16:05:59,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 16:05:59,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 16:05:59,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:05:59" (1/1) ... [2021-11-07 16:05:59,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:59, skipping insertion in model container [2021-11-07 16:05:59,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:05:59" (1/1) ... [2021-11-07 16:05:59,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 16:05:59,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 16:06:03,816 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i[609016,609029] [2021-11-07 16:06:03,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:06:04,272 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 16:06:04,802 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i[609016,609029] [2021-11-07 16:06:04,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:06:05,358 INFO L208 MainTranslator]: Completed translation [2021-11-07 16:06:05,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05 WrapperNode [2021-11-07 16:06:05,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 16:06:05,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 16:06:05,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 16:06:05,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 16:06:05,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:05,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:08,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 16:06:08,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 16:06:08,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 16:06:08,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 16:06:08,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:08,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:09,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:09,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:11,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:11,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:12,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:13,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 16:06:13,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 16:06:13,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 16:06:13,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 16:06:13,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (1/1) ... [2021-11-07 16:06:13,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:06:13,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:06:13,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 16:06:13,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 16:06:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-07 16:06:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_seqint [2021-11-07 16:06:13,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_seqint [2021-11-07 16:06:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_check_patch [2021-11-07 16:06:13,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_check_patch [2021-11-07 16:06:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 16:06:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_shutdown [2021-11-07 16:06:13,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_shutdown [2021-11-07 16:06:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 16:06:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_done [2021-11-07 16:06:13,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_done [2021-11-07 16:06:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_scsiint [2021-11-07 16:06:13,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_scsiint [2021-11-07 16:06:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 16:06:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 16:06:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_queue_recovery_cmd [2021-11-07 16:06:13,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_queue_recovery_cmd [2021-11-07 16:06:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_search_qinfifo [2021-11-07 16:06:13,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_search_qinfifo [2021-11-07 16:06:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 16:06:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 16:06:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_devreset [2021-11-07 16:06:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_devreset [2021-11-07 16:06:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_dev_reset [2021-11-07 16:06:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_dev_reset [2021-11-07 16:06:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 16:06:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 16:06:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 16:06:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 16:06:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_pci_dev_resume [2021-11-07 16:06:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_pci_dev_resume [2021-11-07 16:06:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_chip_init [2021-11-07 16:06:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_chip_init [2021-11-07 16:06:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_resume [2021-11-07 16:06:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_resume [2021-11-07 16:06:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_pci_dev_remove [2021-11-07 16:06:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_pci_dev_remove [2021-11-07 16:06:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_message_phase [2021-11-07 16:06:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_message_phase [2021-11-07 16:06:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_pause_and_flushwork [2021-11-07 16:06:13,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_pause_and_flushwork [2021-11-07 16:06:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 16:06:13,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 16:06:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_queue_cmd_complete [2021-11-07 16:06:13,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_queue_cmd_complete [2021-11-07 16:06:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_loadseq [2021-11-07 16:06:13,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_loadseq [2021-11-07 16:06:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 16:06:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 16:06:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_abort_scbs [2021-11-07 16:06:13,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_abort_scbs [2021-11-07 16:06:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 16:06:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 16:06:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 16:06:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_abort [2021-11-07 16:06:13,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_abort [2021-11-07 16:06:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-07 16:06:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_pci_chip_init [2021-11-07 16:06:13,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_pci_chip_init [2021-11-07 16:06:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_run_qoutfifo [2021-11-07 16:06:13,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_run_qoutfifo [2021-11-07 16:06:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_parse_msg [2021-11-07 16:06:13,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_parse_msg [2021-11-07 16:06:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_proto_violation [2021-11-07 16:06:13,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_proto_violation [2021-11-07 16:06:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_freeze_devq [2021-11-07 16:06:13,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_freeze_devq [2021-11-07 16:06:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_linux_bus_reset [2021-11-07 16:06:13,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_linux_bus_reset [2021-11-07 16:06:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_brkadrint [2021-11-07 16:06:13,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_brkadrint [2021-11-07 16:06:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_handle_msg_reject [2021-11-07 16:06:13,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_handle_msg_reject [2021-11-07 16:06:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 16:06:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_reset [2021-11-07 16:06:13,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_reset [2021-11-07 16:06:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_search_untagged_queues [2021-11-07 16:06:13,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_search_untagged_queues [2021-11-07 16:06:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_download_instr [2021-11-07 16:06:13,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_download_instr [2021-11-07 16:06:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_intr [2021-11-07 16:06:13,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_intr [2021-11-07 16:06:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_free [2021-11-07 16:06:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_free [2021-11-07 16:06:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ahc_reset_channel [2021-11-07 16:06:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ahc_reset_channel [2021-11-07 16:06:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 16:18:59,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 16:18:59,451 INFO L299 CfgBuilder]: Removed 24885 assume(true) statements. [2021-11-07 16:18:59,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:59 BoogieIcfgContainer [2021-11-07 16:18:59,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 16:18:59,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 16:18:59,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 16:18:59,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 16:18:59,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:05:59" (1/3) ... [2021-11-07 16:18:59,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d008496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:59, skipping insertion in model container [2021-11-07 16:18:59,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:06:05" (2/3) ... [2021-11-07 16:18:59,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d008496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:59, skipping insertion in model container [2021-11-07 16:18:59,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:59" (3/3) ... [2021-11-07 16:18:59,483 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--aic7xxx--aic7xxx.ko-entry_point.cil.out.i [2021-11-07 16:18:59,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 16:18:59,489 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-11-07 16:18:59,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 16:18:59,590 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 16:18:59,590 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-11-07 16:18:59,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 33759 states, 33612 states have (on average 1.4025050577174818) internal successors, (47141), 33647 states have internal predecessors, (47141), 89 states have call successors, (89), 35 states have call predecessors, (89), 35 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2021-11-07 16:18:59,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 16:18:59,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:18:59,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:18:59,872 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ahc_loadseqErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-11-07 16:18:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:18:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash -672117617, now seen corresponding path program 1 times [2021-11-07 16:18:59,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:18:59,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410405677] [2021-11-07 16:18:59,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:18:59,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:19:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:19:01,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:19:01,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:19:01,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410405677] [2021-11-07 16:19:01,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410405677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:19:01,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:19:01,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 16:19:01,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292493944] [2021-11-07 16:19:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:19:01,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 16:19:01,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:19:01,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 16:19:01,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 16:19:01,468 INFO L87 Difference]: Start difference. First operand has 33759 states, 33612 states have (on average 1.4025050577174818) internal successors, (47141), 33647 states have internal predecessors, (47141), 89 states have call successors, (89), 35 states have call predecessors, (89), 35 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:19:02,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:19:02,280 INFO L93 Difference]: Finished difference Result 67514 states and 94722 transitions. [2021-11-07 16:19:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 16:19:02,282 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 16:19:02,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:19:02,434 INFO L225 Difference]: With dead ends: 67514 [2021-11-07 16:19:02,435 INFO L226 Difference]: Without dead ends: 33709 [2021-11-07 16:19:02,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 16:19:02,567 INFO L933 BasicCegarLoop]: 47239 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47239 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 16:19:02,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47239 Invalid, 0 Unknown, 0 Unchecked, 67.45ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 16:19:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33709 states. [2021-11-07 16:19:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33709 to 33709. [2021-11-07 16:19:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33709 states, 33563 states have (on average 1.3993683520543456) internal successors, (46967), 33597 states have internal predecessors, (46967), 89 states have call successors, (89), 35 states have call predecessors, (89), 35 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2021-11-07 16:19:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33709 states to 33709 states and 47145 transitions. [2021-11-07 16:19:03,525 INFO L78 Accepts]: Start accepts. Automaton has 33709 states and 47145 transitions. Word has length 52 [2021-11-07 16:19:03,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:19:03,525 INFO L470 AbstractCegarLoop]: Abstraction has 33709 states and 47145 transitions. [2021-11-07 16:19:03,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:19:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 33709 states and 47145 transitions. [2021-11-07 16:19:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 16:19:03,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:19:03,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:19:03,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 16:19:03,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ahc_loadseqErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-11-07 16:19:03,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:19:03,531 INFO L85 PathProgramCache]: Analyzing trace with hash -263989613, now seen corresponding path program 1 times [2021-11-07 16:19:03,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:19:03,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424444844] [2021-11-07 16:19:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:19:03,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:19:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:19:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:19:05,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:19:05,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424444844] [2021-11-07 16:19:05,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424444844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:19:05,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:19:05,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:19:05,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133846962] [2021-11-07 16:19:05,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:19:05,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:19:05,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:19:05,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:19:05,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:19:05,036 INFO L87 Difference]: Start difference. First operand 33709 states and 47145 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:19:07,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:19:07,205 INFO L93 Difference]: Finished difference Result 98010 states and 137277 transitions. [2021-11-07 16:19:07,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:19:07,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 16:19:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:19:07,415 INFO L225 Difference]: With dead ends: 98010 [2021-11-07 16:19:07,416 INFO L226 Difference]: Without dead ends: 64331 [2021-11-07 16:19:07,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:19:07,515 INFO L933 BasicCegarLoop]: 50964 mSDtfsCounter, 43044 mSDsluCounter, 47035 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 456.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43044 SdHoareTripleChecker+Valid, 97999 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 142.62ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 528.41ms IncrementalHoareTripleChecker+Time [2021-11-07 16:19:07,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43044 Valid, 97999 Invalid, 81 Unknown, 0 Unchecked, 142.62ms Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 528.41ms Time] [2021-11-07 16:19:07,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64331 states. [2021-11-07 16:19:08,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64331 to 64290. [2021-11-07 16:19:08,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64290 states, 64026 states have (on average 1.4011339143472965) internal successors, (89709), 64073 states have internal predecessors, (89709), 172 states have call successors, (172), 70 states have call predecessors, (172), 70 states have return successors, (261), 168 states have call predecessors, (261), 172 states have call successors, (261) [2021-11-07 16:19:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64290 states to 64290 states and 90142 transitions. [2021-11-07 16:19:08,994 INFO L78 Accepts]: Start accepts. Automaton has 64290 states and 90142 transitions. Word has length 52 [2021-11-07 16:19:08,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:19:08,995 INFO L470 AbstractCegarLoop]: Abstraction has 64290 states and 90142 transitions. [2021-11-07 16:19:08,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:19:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 64290 states and 90142 transitions. [2021-11-07 16:19:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 16:19:09,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:19:09,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:19:09,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 16:19:09,003 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ahc_loadseqErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-11-07 16:19:09,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:19:09,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1472112458, now seen corresponding path program 1 times [2021-11-07 16:19:09,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:19:09,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170318660] [2021-11-07 16:19:09,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:19:09,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:19:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:19:10,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:19:10,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:19:10,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170318660] [2021-11-07 16:19:10,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170318660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:19:10,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:19:10,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:19:10,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109057829] [2021-11-07 16:19:10,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:19:10,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:19:10,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:19:10,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:19:10,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:19:10,282 INFO L87 Difference]: Start difference. First operand 64290 states and 90142 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)