./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.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 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 15:51:28,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 15:51:28,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 15:51:28,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 15:51:28,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 15:51:28,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 15:51:28,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 15:51:28,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 15:51:28,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 15:51:28,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 15:51:28,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 15:51:28,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 15:51:28,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 15:51:28,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 15:51:28,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 15:51:28,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 15:51:28,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 15:51:28,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 15:51:28,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 15:51:28,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 15:51:28,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 15:51:28,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 15:51:28,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 15:51:28,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 15:51:28,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 15:51:28,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 15:51:28,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 15:51:28,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 15:51:28,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 15:51:28,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 15:51:28,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 15:51:28,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 15:51:28,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 15:51:28,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 15:51:28,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 15:51:28,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 15:51:28,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 15:51:28,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 15:51:28,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 15:51:28,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 15:51:28,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 15:51:28,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 15:51:28,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 15:51:28,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 15:51:28,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 15:51:28,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 15:51:28,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 15:51:28,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 15:51:28,921 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 15:51:28,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 15:51:28,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 15:51:28,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 15:51:28,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 15:51:28,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 15:51:28,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 15:51:28,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 15:51:28,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 15:51:28,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 15:51:28,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 15:51:28,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 15:51:28,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 15:51:28,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:51:28,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 15:51:28,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 15:51:28,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 15:51:28,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 15:51:28,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 15:51:28,930 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 15:51:28,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 15:51:28,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 15:51:28,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 15:51:28,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d [2021-11-05 15:51:29,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 15:51:29,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 15:51:29,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 15:51:29,170 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 15:51:29,170 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 15:51:29,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-11-05 15:51:29,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fac6f7489/c4b79564cf294e8c9e179b6de8ccae96/FLAGa47b1bd5e [2021-11-05 15:51:29,824 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 15:51:29,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-11-05 15:51:29,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fac6f7489/c4b79564cf294e8c9e179b6de8ccae96/FLAGa47b1bd5e [2021-11-05 15:51:29,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fac6f7489/c4b79564cf294e8c9e179b6de8ccae96 [2021-11-05 15:51:29,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 15:51:29,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 15:51:29,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 15:51:29,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 15:51:29,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 15:51:29,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:51:29" (1/1) ... [2021-11-05 15:51:29,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64916ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:29, skipping insertion in model container [2021-11-05 15:51:29,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:51:29" (1/1) ... [2021-11-05 15:51:29,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 15:51:30,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 15:51:31,814 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2021-11-05 15:51:31,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:51:31,922 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 15:51:32,402 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2021-11-05 15:51:32,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:51:32,485 INFO L208 MainTranslator]: Completed translation [2021-11-05 15:51:32,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32 WrapperNode [2021-11-05 15:51:32,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 15:51:32,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 15:51:32,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 15:51:32,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 15:51:32,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:32,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:36,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 15:51:36,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 15:51:36,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 15:51:36,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 15:51:36,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:36,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:37,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:37,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:38,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:39,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:39,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:40,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 15:51:40,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 15:51:40,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 15:51:40,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 15:51:40,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (1/1) ... [2021-11-05 15:51:40,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:51:40,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 15:51:41,009 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) [2021-11-05 15:51:41,019 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 [2021-11-05 15:51:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 15:51:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 15:51:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 15:51:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 15:51:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 15:51:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 15:51:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 15:51:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 15:51:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 15:51:41,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 15:54:46,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 15:54:46,461 INFO L299 CfgBuilder]: Removed 15633 assume(true) statements. [2021-11-05 15:54:46,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:54:46 BoogieIcfgContainer [2021-11-05 15:54:46,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 15:54:46,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 15:54:46,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 15:54:46,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 15:54:46,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:51:29" (1/3) ... [2021-11-05 15:54:46,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad9f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:54:46, skipping insertion in model container [2021-11-05 15:54:46,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:51:32" (2/3) ... [2021-11-05 15:54:46,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad9f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:54:46, skipping insertion in model container [2021-11-05 15:54:46,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:54:46" (3/3) ... [2021-11-05 15:54:46,498 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-11-05 15:54:46,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 15:54:46,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-11-05 15:54:46,612 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 15:54:46,618 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 [2021-11-05 15:54:46,618 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-11-05 15:54:46,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 42288 states, 42241 states have (on average 1.553064558130726) internal successors, (65603), 42287 states have internal predecessors, (65603), 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) [2021-11-05 15:54:46,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-05 15:54:46,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:54:46,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:54:46,992 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-05 15:54:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:54:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1302390943, now seen corresponding path program 1 times [2021-11-05 15:54:47,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:54:47,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946691190] [2021-11-05 15:54:47,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:54:47,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:54:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:54:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:54:47,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:54:47,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946691190] [2021-11-05 15:54:47,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946691190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:54:47,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:54:47,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:54:47,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656769307] [2021-11-05 15:54:47,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:54:47,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:54:47,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:54:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:54:47,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:54:47,655 INFO L87 Difference]: Start difference. First operand has 42288 states, 42241 states have (on average 1.553064558130726) internal successors, (65603), 42287 states have internal predecessors, (65603), 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) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-05 15:54:49,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:54:51,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:54:51,038 INFO L93 Difference]: Finished difference Result 84571 states and 131201 transitions. [2021-11-05 15:54:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:54:51,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-05 15:54:51,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:54:51,189 INFO L225 Difference]: With dead ends: 84571 [2021-11-05 15:54:51,190 INFO L226 Difference]: Without dead ends: 42282 [2021-11-05 15:54:51,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:54:51,259 INFO L933 BasicCegarLoop]: 65527 mSDtfsCounter, 65511 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2078.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65511 SdHoareTripleChecker+Valid, 65527 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2215.76ms IncrementalHoareTripleChecker+Time [2021-11-05 15:54:51,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65511 Valid, 65527 Invalid, 2 Unknown, 0 Unchecked, 130.04ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2215.76ms Time] [2021-11-05 15:54:51,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42282 states. [2021-11-05 15:54:52,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42282 to 42282. [2021-11-05 15:54:52,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42282 states, 42237 states have (on average 1.5513412410919336) internal successors, (65524), 42281 states have internal predecessors, (65524), 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) [2021-11-05 15:54:52,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42282 states to 42282 states and 65524 transitions. [2021-11-05 15:54:52,666 INFO L78 Accepts]: Start accepts. Automaton has 42282 states and 65524 transitions. Word has length 19 [2021-11-05 15:54:52,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:54:52,666 INFO L470 AbstractCegarLoop]: Abstraction has 42282 states and 65524 transitions. [2021-11-05 15:54:52,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-05 15:54:52,667 INFO L276 IsEmpty]: Start isEmpty. Operand 42282 states and 65524 transitions. [2021-11-05 15:54:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-05 15:54:52,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:54:52,670 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] [2021-11-05 15:54:52,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 15:54:52,671 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-05 15:54:52,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:54:52,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1719253732, now seen corresponding path program 1 times [2021-11-05 15:54:52,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:54:52,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637360449] [2021-11-05 15:54:52,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:54:52,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:54:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:54:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:54:52,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:54:52,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637360449] [2021-11-05 15:54:52,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637360449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:54:52,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:54:52,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:54:52,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123023965] [2021-11-05 15:54:52,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:54:52,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:54:52,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:54:52,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:54:52,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:54:52,932 INFO L87 Difference]: Start difference. First operand 42282 states and 65524 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-05 15:54:55,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:54:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:54:55,804 INFO L93 Difference]: Finished difference Result 42282 states and 65524 transitions. [2021-11-05 15:54:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:54:55,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-05 15:54:55,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:54:55,892 INFO L225 Difference]: With dead ends: 42282 [2021-11-05 15:54:55,892 INFO L226 Difference]: Without dead ends: 42280 [2021-11-05 15:54:55,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:54:55,912 INFO L933 BasicCegarLoop]: 65521 mSDtfsCounter, 65504 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2077.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65504 SdHoareTripleChecker+Valid, 65521 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 310.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2206.45ms IncrementalHoareTripleChecker+Time [2021-11-05 15:54:55,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65504 Valid, 65521 Invalid, 2 Unknown, 0 Unchecked, 310.51ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2206.45ms Time] [2021-11-05 15:54:56,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42280 states. [2021-11-05 15:54:56,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42280 to 42280. [2021-11-05 15:54:56,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42280 states, 42236 states have (on average 1.5513306184297755) internal successors, (65522), 42279 states have internal predecessors, (65522), 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) [2021-11-05 15:54:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42280 states to 42280 states and 65522 transitions. [2021-11-05 15:54:56,973 INFO L78 Accepts]: Start accepts. Automaton has 42280 states and 65522 transitions. Word has length 20 [2021-11-05 15:54:56,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:54:56,974 INFO L470 AbstractCegarLoop]: Abstraction has 42280 states and 65522 transitions. [2021-11-05 15:54:56,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-05 15:54:56,974 INFO L276 IsEmpty]: Start isEmpty. Operand 42280 states and 65522 transitions. [2021-11-05 15:54:56,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-05 15:54:56,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:54:56,976 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] [2021-11-05 15:54:56,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 15:54:56,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-05 15:54:56,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:54:56,977 INFO L85 PathProgramCache]: Analyzing trace with hash -238429776, now seen corresponding path program 1 times [2021-11-05 15:54:56,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:54:56,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070759144] [2021-11-05 15:54:56,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:54:56,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:54:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:54:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:54:57,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:54:57,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070759144] [2021-11-05 15:54:57,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070759144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:54:57,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:54:57,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:54:57,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152398541] [2021-11-05 15:54:57,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:54:57,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:54:57,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:54:57,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:54:57,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:54:57,206 INFO L87 Difference]: Start difference. First operand 42280 states and 65522 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-05 15:54:58,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:54:58,702 INFO L93 Difference]: Finished difference Result 100759 states and 156145 transitions. [2021-11-05 15:54:58,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:54:58,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-05 15:54:58,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:54:58,847 INFO L225 Difference]: With dead ends: 100759 [2021-11-05 15:54:58,848 INFO L226 Difference]: Without dead ends: 58482 [2021-11-05 15:54:58,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:54:58,918 INFO L933 BasicCegarLoop]: 65521 mSDtfsCounter, 25100 mSDsluCounter, 65231 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 377.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25100 SdHoareTripleChecker+Valid, 130752 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.11ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 452.55ms IncrementalHoareTripleChecker+Time [2021-11-05 15:54:58,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25100 Valid, 130752 Invalid, 290 Unknown, 0 Unchecked, 101.11ms Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 452.55ms Time] [2021-11-05 15:54:59,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58482 states. [2021-11-05 15:55:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58482 to 58283. [2021-11-05 15:55:00,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58283 states, 58239 states have (on average 1.5510740225622006) internal successors, (90333), 58282 states have internal predecessors, (90333), 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) [2021-11-05 15:55:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58283 states to 58283 states and 90333 transitions. [2021-11-05 15:55:00,222 INFO L78 Accepts]: Start accepts. Automaton has 58283 states and 90333 transitions. Word has length 21 [2021-11-05 15:55:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:55:00,222 INFO L470 AbstractCegarLoop]: Abstraction has 58283 states and 90333 transitions. [2021-11-05 15:55:00,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-05 15:55:00,223 INFO L276 IsEmpty]: Start isEmpty. Operand 58283 states and 90333 transitions. [2021-11-05 15:55:00,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-05 15:55:00,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:55:00,224 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] [2021-11-05 15:55:00,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 15:55:00,225 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-05 15:55:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:55:00,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1757098293, now seen corresponding path program 1 times [2021-11-05 15:55:00,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:55:00,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367740375] [2021-11-05 15:55:00,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:55:00,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:55:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:55:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:55:00,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:55:00,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367740375] [2021-11-05 15:55:00,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367740375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:55:00,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:55:00,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:55:00,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293588811] [2021-11-05 15:55:00,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:55:00,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:55:00,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:55:00,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:55:00,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:00,438 INFO L87 Difference]: Start difference. First operand 58283 states and 90333 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-05 15:55:02,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:55:03,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:55:03,503 INFO L93 Difference]: Finished difference Result 58283 states and 90333 transitions. [2021-11-05 15:55:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:55:03,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-05 15:55:03,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:55:03,624 INFO L225 Difference]: With dead ends: 58283 [2021-11-05 15:55:03,624 INFO L226 Difference]: Without dead ends: 58281 [2021-11-05 15:55:03,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:03,654 INFO L933 BasicCegarLoop]: 65519 mSDtfsCounter, 65501 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2070.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65501 SdHoareTripleChecker+Valid, 65519 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2225.66ms IncrementalHoareTripleChecker+Time [2021-11-05 15:55:03,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65501 Valid, 65519 Invalid, 2 Unknown, 0 Unchecked, 78.58ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2225.66ms Time] [2021-11-05 15:55:03,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58281 states. [2021-11-05 15:55:04,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58281 to 58281. [2021-11-05 15:55:04,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58281 states, 58238 states have (on average 1.5510663140904564) internal successors, (90331), 58280 states have internal predecessors, (90331), 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) [2021-11-05 15:55:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58281 states to 58281 states and 90331 transitions. [2021-11-05 15:55:05,029 INFO L78 Accepts]: Start accepts. Automaton has 58281 states and 90331 transitions. Word has length 21 [2021-11-05 15:55:05,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:55:05,030 INFO L470 AbstractCegarLoop]: Abstraction has 58281 states and 90331 transitions. [2021-11-05 15:55:05,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-05 15:55:05,030 INFO L276 IsEmpty]: Start isEmpty. Operand 58281 states and 90331 transitions. [2021-11-05 15:55:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 15:55:05,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:55:05,033 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] [2021-11-05 15:55:05,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 15:55:05,033 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-05 15:55:05,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:55:05,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1364687622, now seen corresponding path program 1 times [2021-11-05 15:55:05,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:55:05,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194381265] [2021-11-05 15:55:05,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:55:05,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:55:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:55:05,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:55:05,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:55:05,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194381265] [2021-11-05 15:55:05,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194381265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:55:05,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:55:05,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:55:05,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209660427] [2021-11-05 15:55:05,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:55:05,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:55:05,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:55:05,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:55:05,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:05,224 INFO L87 Difference]: Start difference. First operand 58281 states and 90331 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-05 15:55:07,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:55:08,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:55:08,246 INFO L93 Difference]: Finished difference Result 58281 states and 90331 transitions. [2021-11-05 15:55:08,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:55:08,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-11-05 15:55:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:55:08,337 INFO L225 Difference]: With dead ends: 58281 [2021-11-05 15:55:08,337 INFO L226 Difference]: Without dead ends: 58042 [2021-11-05 15:55:08,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:55:08,353 INFO L933 BasicCegarLoop]: 65455 mSDtfsCounter, 54585 mSDsluCounter, 10787 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2169.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 54585 SdHoareTripleChecker+Valid, 76242 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.80ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2320.17ms IncrementalHoareTripleChecker+Time [2021-11-05 15:55:08,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54585 Valid, 76242 Invalid, 127 Unknown, 0 Unchecked, 52.80ms Time], IncrementalHoareTripleChecker [42 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 2320.17ms Time] [2021-11-05 15:55:08,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58042 states.