./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--atm--idt77252.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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--atm--idt77252.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 fb0fc86f72cdfe1a837f7da7eb551fccd91d133ec18be371191e60cc97080830 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 21:48:33,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 21:48:33,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 21:48:33,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 21:48:33,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 21:48:33,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 21:48:33,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 21:48:33,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 21:48:33,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 21:48:33,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 21:48:33,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 21:48:33,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 21:48:33,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 21:48:33,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 21:48:33,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 21:48:33,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 21:48:33,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 21:48:33,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 21:48:33,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 21:48:33,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 21:48:33,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 21:48:33,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 21:48:33,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 21:48:33,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 21:48:33,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 21:48:33,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 21:48:33,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 21:48:33,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 21:48:33,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 21:48:33,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 21:48:33,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 21:48:33,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 21:48:33,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 21:48:33,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 21:48:33,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 21:48:33,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 21:48:33,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 21:48:33,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 21:48:33,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 21:48:33,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 21:48:33,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 21:48:33,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 21:48:33,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 21:48:33,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 21:48:33,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 21:48:33,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 21:48:33,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 21:48:33,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 21:48:33,189 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 21:48:33,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 21:48:33,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 21:48:33,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 21:48:33,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 21:48:33,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 21:48:33,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 21:48:33,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 21:48:33,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 21:48:33,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 21:48:33,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 21:48:33,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 21:48:33,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 21:48:33,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 21:48:33,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 21:48:33,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 21:48:33,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 21:48:33,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 21:48:33,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 21:48:33,193 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 21:48:33,194 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 21:48:33,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 21:48:33,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 21:48:33,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb0fc86f72cdfe1a837f7da7eb551fccd91d133ec18be371191e60cc97080830 [2021-11-02 21:48:33,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 21:48:33,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 21:48:33,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 21:48:33,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 21:48:33,513 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 21:48:33,514 INFO L432 ainManager$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--atm--idt77252.ko-entry_point.cil.out.i [2021-11-02 21:48:33,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed2a54e9/a95c8fd690264bb69bd3a5c9db4669d9/FLAG1c3dae328 [2021-11-02 21:48:34,480 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 21:48:34,481 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--atm--idt77252.ko-entry_point.cil.out.i [2021-11-02 21:48:34,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed2a54e9/a95c8fd690264bb69bd3a5c9db4669d9/FLAG1c3dae328 [2021-11-02 21:48:34,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed2a54e9/a95c8fd690264bb69bd3a5c9db4669d9 [2021-11-02 21:48:34,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 21:48:34,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 21:48:34,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 21:48:34,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 21:48:34,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 21:48:34,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:48:34" (1/1) ... [2021-11-02 21:48:34,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332d3f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:34, skipping insertion in model container [2021-11-02 21:48:34,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:48:34" (1/1) ... [2021-11-02 21:48:34,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 21:48:34,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 21:48:37,347 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--atm--idt77252.ko-entry_point.cil.out.i[367978,367991] [2021-11-02 21:48:37,405 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-02 21:48:37,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 21:48:37,500 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 21:48:37,994 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--atm--idt77252.ko-entry_point.cil.out.i[367978,367991] [2021-11-02 21:48:37,998 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-02 21:48:38,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 21:48:38,125 INFO L208 MainTranslator]: Completed translation [2021-11-02 21:48:38,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38 WrapperNode [2021-11-02 21:48:38,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 21:48:38,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 21:48:38,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 21:48:38,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 21:48:38,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:38,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:43,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 21:48:43,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 21:48:43,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 21:48:43,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 21:48:43,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:43,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:45,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:45,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:47,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:48,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:48,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:49,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 21:48:49,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 21:48:49,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 21:48:49,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 21:48:49,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (1/1) ... [2021-11-02 21:48:49,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 21:48:49,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 21:48:49,313 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) [2021-11-02 21:48:49,334 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 [2021-11-02 21:48:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 21:48:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 21:48:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-02 21:48:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 21:48:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 21:48:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-02 21:48:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 21:48:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 21:48:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 21:48:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 21:48:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 21:48:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 21:48:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 21:48:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 21:48:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 21:48:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 21:48:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 21:48:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 21:49:10,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 21:49:10,620 INFO L299 CfgBuilder]: Removed 35197 assume(true) statements. [2021-11-02 21:49:10,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:49:10 BoogieIcfgContainer [2021-11-02 21:49:10,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 21:49:10,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 21:49:10,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 21:49:10,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 21:49:10,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:48:34" (1/3) ... [2021-11-02 21:49:10,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249d2663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:49:10, skipping insertion in model container [2021-11-02 21:49:10,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:48:38" (2/3) ... [2021-11-02 21:49:10,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249d2663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:49:10, skipping insertion in model container [2021-11-02 21:49:10,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:49:10" (3/3) ... [2021-11-02 21:49:10,657 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--idt77252.ko-entry_point.cil.out.i [2021-11-02 21:49:10,662 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 21:49:10,662 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 144 error locations. [2021-11-02 21:49:11,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 21:49:11,023 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 [2021-11-02 21:49:11,023 INFO L340 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2021-11-02 21:49:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 30165 states, 30020 states have (on average 1.3457361758827449) internal successors, (40399), 30164 states have internal predecessors, (40399), 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) [2021-11-02 21:49:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-02 21:49:11,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:49:11,448 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] [2021-11-02 21:49:11,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 141 more)] === [2021-11-02 21:49:11,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:49:11,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1226989335, now seen corresponding path program 1 times [2021-11-02 21:49:11,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:49:11,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198443207] [2021-11-02 21:49:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:49:11,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:49:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:49:12,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 21:49:12,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:49:12,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198443207] [2021-11-02 21:49:12,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198443207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:49:12,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:49:12,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 21:49:12,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289800726] [2021-11-02 21:49:12,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 21:49:12,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:49:12,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 21:49:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 21:49:12,322 INFO L87 Difference]: Start difference. First operand has 30165 states, 30020 states have (on average 1.3457361758827449) internal successors, (40399), 30164 states have internal predecessors, (40399), 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 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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) [2021-11-02 21:49:14,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:49:56,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:02,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:06,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:09,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:14,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:17,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:21,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:25,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:28,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:35,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:50:39,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:51:07,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:52:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:52:32,353 INFO L93 Difference]: Finished difference Result 60323 states and 80789 transitions. [2021-11-02 21:52:32,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 21:52:32,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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 57 [2021-11-02 21:52:32,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:52:32,556 INFO L225 Difference]: With dead ends: 60323 [2021-11-02 21:52:32,556 INFO L226 Difference]: Without dead ends: 29560 [2021-11-02 21:52:32,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 21:52:32,630 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39385 mSolverCounterSat, 0 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 179655.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 39398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 157.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39385 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 196595.94ms IncrementalHoareTripleChecker+Time [2021-11-02 21:52:32,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 39398 Unknown, 0 Unchecked, 157.67ms Time], IncrementalHoareTripleChecker [0 Valid, 39385 Invalid, 13 Unknown, 0 Unchecked, 196595.94ms Time] [2021-11-02 21:52:32,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29560 states. [2021-11-02 21:52:33,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29560 to 29560. [2021-11-02 21:52:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29560 states, 29416 states have (on average 1.318806091922763) internal successors, (38794), 29559 states have internal predecessors, (38794), 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) [2021-11-02 21:52:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29560 states to 29560 states and 38794 transitions. [2021-11-02 21:52:33,778 INFO L78 Accepts]: Start accepts. Automaton has 29560 states and 38794 transitions. Word has length 57 [2021-11-02 21:52:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:52:33,778 INFO L470 AbstractCegarLoop]: Abstraction has 29560 states and 38794 transitions. [2021-11-02 21:52:33,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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) [2021-11-02 21:52:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 29560 states and 38794 transitions. [2021-11-02 21:52:33,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-02 21:52:33,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:52:33,786 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] [2021-11-02 21:52:33,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 21:52:33,787 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 141 more)] === [2021-11-02 21:52:33,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:52:33,789 INFO L85 PathProgramCache]: Analyzing trace with hash 315009311, now seen corresponding path program 1 times [2021-11-02 21:52:33,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:52:33,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279941090] [2021-11-02 21:52:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:52:33,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:52:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:52:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 21:52:34,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:52:34,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279941090] [2021-11-02 21:52:34,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279941090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:52:34,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:52:34,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:52:34,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512107950] [2021-11-02 21:52:34,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:52:34,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:52:34,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:52:34,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:52:34,265 INFO L87 Difference]: Start difference. First operand 29560 states and 38794 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-02 21:52:36,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:53:50,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:53:56,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:01,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:05,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:09,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:12,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:15,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:20,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:24,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:28,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:30,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:34,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:38,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:43,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:48,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:54:59,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:55:05,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:55:54,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:56:00,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:59:02,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:59:02,737 INFO L93 Difference]: Finished difference Result 59321 states and 78017 transitions. [2021-11-02 21:59:02,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:59:02,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-02 21:59:02,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:59:02,835 INFO L225 Difference]: With dead ends: 59321 [2021-11-02 21:59:02,835 INFO L226 Difference]: Without dead ends: 29789 [2021-11-02 21:59:02,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:59:02,891 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 38077 mSDsCounter, 0 mSdLazyCounter, 77321 mSolverCounterSat, 456 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 348358.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 435.85ms SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 77321 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 384790.93ms IncrementalHoareTripleChecker+Time [2021-11-02 21:59:02,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 77797 Unknown, 0 Unchecked, 435.85ms Time], IncrementalHoareTripleChecker [456 Valid, 77321 Invalid, 20 Unknown, 0 Unchecked, 384790.93ms Time] [2021-11-02 21:59:02,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29789 states. [2021-11-02 21:59:03,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29789 to 29789. [2021-11-02 21:59:03,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29789 states, 29645 states have (on average 1.3163433968628775) internal successors, (39023), 29788 states have internal predecessors, (39023), 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) [2021-11-02 21:59:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29789 states to 29789 states and 39023 transitions. [2021-11-02 21:59:03,757 INFO L78 Accepts]: Start accepts. Automaton has 29789 states and 39023 transitions. Word has length 57 [2021-11-02 21:59:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:59:03,757 INFO L470 AbstractCegarLoop]: Abstraction has 29789 states and 39023 transitions. [2021-11-02 21:59:03,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-02 21:59:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 29789 states and 39023 transitions. [2021-11-02 21:59:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-02 21:59:03,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:59:03,759 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] [2021-11-02 21:59:03,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 21:59:03,760 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 141 more)] === [2021-11-02 21:59:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:59:03,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1248233053, now seen corresponding path program 1 times [2021-11-02 21:59:03,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:59:03,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249687727] [2021-11-02 21:59:03,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:59:03,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:59:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:59:04,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 21:59:04,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:59:04,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249687727] [2021-11-02 21:59:04,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249687727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:59:04,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:59:04,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:59:04,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656318337] [2021-11-02 21:59:04,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:59:04,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:59:04,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:59:04,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:59:04,187 INFO L87 Difference]: Start difference. First operand 29789 states and 39023 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-02 21:59:06,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:00:34,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:00:40,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:00:47,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:00:52,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:00:54,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:00:58,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:03,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:05,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:10,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:13,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:16,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:21,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:25,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:30,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:45,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:01:51,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15