./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-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-32_7a-drivers--gpu--drm--ast--ast.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 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 06:35:58,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 06:35:58,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 06:35:59,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 06:35:59,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 06:35:59,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 06:35:59,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 06:35:59,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 06:35:59,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 06:35:59,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 06:35:59,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 06:35:59,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 06:35:59,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 06:35:59,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 06:35:59,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 06:35:59,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 06:35:59,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 06:35:59,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 06:35:59,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 06:35:59,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 06:35:59,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 06:35:59,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 06:35:59,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 06:35:59,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 06:35:59,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 06:35:59,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 06:35:59,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 06:35:59,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 06:35:59,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 06:35:59,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 06:35:59,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 06:35:59,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 06:35:59,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 06:35:59,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 06:35:59,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 06:35:59,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 06:35:59,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 06:35:59,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 06:35:59,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 06:35:59,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 06:35:59,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 06:35:59,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 06:35:59,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 06:35:59,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 06:35:59,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 06:35:59,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 06:35:59,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 06:35:59,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 06:35:59,087 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 06:35:59,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 06:35:59,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 06:35:59,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 06:35:59,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 06:35:59,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 06:35:59,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 06:35:59,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 06:35:59,089 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 06:35:59,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 06:35:59,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 06:35:59,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 06:35:59,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 06:35:59,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:35:59,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 06:35:59,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 06:35:59,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 06:35:59,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 06:35:59,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 06:35:59,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 06:35:59,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 06:35:59,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 06:35:59,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 06:35:59,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a [2021-11-04 06:35:59,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 06:35:59,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 06:35:59,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 06:35:59,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 06:35:59,329 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 06:35:59,330 INFO L432 ainManager$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-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-11-04 06:35:59,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21311e8a5/c4d676d17f4144ba9aa5850244b4d655/FLAG57ffd8bb7 [2021-11-04 06:36:00,168 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 06:36:00,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-11-04 06:36:00,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21311e8a5/c4d676d17f4144ba9aa5850244b4d655/FLAG57ffd8bb7 [2021-11-04 06:36:00,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21311e8a5/c4d676d17f4144ba9aa5850244b4d655 [2021-11-04 06:36:00,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 06:36:00,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 06:36:00,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 06:36:00,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 06:36:00,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 06:36:00,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:36:00" (1/1) ... [2021-11-04 06:36:00,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d60fced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:00, skipping insertion in model container [2021-11-04 06:36:00,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:36:00" (1/1) ... [2021-11-04 06:36:00,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 06:36:00,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 06:36:04,052 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-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2021-11-04 06:36:04,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:36:04,442 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 06:36:04,807 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-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2021-11-04 06:36:04,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:36:05,029 INFO L208 MainTranslator]: Completed translation [2021-11-04 06:36:05,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05 WrapperNode [2021-11-04 06:36:05,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 06:36:05,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 06:36:05,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 06:36:05,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 06:36:05,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:05,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:09,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 06:36:09,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 06:36:09,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 06:36:09,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 06:36:09,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:09,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:10,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:10,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:11,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:12,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:12,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:12,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 06:36:12,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 06:36:12,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 06:36:12,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 06:36:12,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (1/1) ... [2021-11-04 06:36:12,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:36:12,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 06:36:12,868 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) [2021-11-04 06:36:12,869 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 [2021-11-04 06:36:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 06:36:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 06:36:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 06:36:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 06:36:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 06:36:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 06:36:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 06:36:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 06:36:12,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 06:36:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 06:36:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 06:36:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-04 06:36:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 06:36:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-04 06:36:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 06:36:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 06:36:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 06:36:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 06:36:22,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 06:36:22,865 INFO L299 CfgBuilder]: Removed 33698 assume(true) statements. [2021-11-04 06:36:22,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:36:22 BoogieIcfgContainer [2021-11-04 06:36:22,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 06:36:22,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 06:36:22,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 06:36:22,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 06:36:22,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 06:36:00" (1/3) ... [2021-11-04 06:36:22,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3e78da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:36:22, skipping insertion in model container [2021-11-04 06:36:22,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:36:05" (2/3) ... [2021-11-04 06:36:22,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3e78da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:36:22, skipping insertion in model container [2021-11-04 06:36:22,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:36:22" (3/3) ... [2021-11-04 06:36:22,887 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-11-04 06:36:22,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 06:36:22,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 85 error locations. [2021-11-04 06:36:22,986 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 06:36:22,990 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 [2021-11-04 06:36:22,991 INFO L340 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2021-11-04 06:36:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 20975 states, 20889 states have (on average 1.2228445593374504) internal successors, (25544), 20974 states have internal predecessors, (25544), 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) [2021-11-04 06:36:23,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-04 06:36:23,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:36:23,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:36:23,181 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-04 06:36:23,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:36:23,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1308193230, now seen corresponding path program 1 times [2021-11-04 06:36:23,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:36:23,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186844639] [2021-11-04 06:36:23,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:36:23,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:36:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:36:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:36:23,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:36:23,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186844639] [2021-11-04 06:36:23,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186844639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:36:23,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:36:23,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 06:36:23,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295049841] [2021-11-04 06:36:23,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:36:23,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 06:36:23,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:36:23,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 06:36:23,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 06:36:23,832 INFO L87 Difference]: Start difference. First operand has 20975 states, 20889 states have (on average 1.2228445593374504) internal successors, (25544), 20974 states have internal predecessors, (25544), 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 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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) [2021-11-04 06:36:30,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:36:44,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:36:49,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:18,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:37:18,381 INFO L93 Difference]: Finished difference Result 41946 states and 51083 transitions. [2021-11-04 06:37:18,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 06:37:18,383 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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 75 [2021-11-04 06:37:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:37:18,473 INFO L225 Difference]: With dead ends: 41946 [2021-11-04 06:37:18,473 INFO L226 Difference]: Without dead ends: 20950 [2021-11-04 06:37:18,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 06:37:18,525 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25353 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48339.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 25354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53549.04ms IncrementalHoareTripleChecker+Time [2021-11-04 06:37:18,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 25354 Unknown, 0 Unchecked, 27.78ms Time], IncrementalHoareTripleChecker [0 Valid, 25353 Invalid, 1 Unknown, 0 Unchecked, 53549.04ms Time] [2021-11-04 06:37:18,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20950 states. [2021-11-04 06:37:19,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20950 to 20950. [2021-11-04 06:37:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20950 states, 20865 states have (on average 1.2139468008626888) internal successors, (25329), 20949 states have internal predecessors, (25329), 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) [2021-11-04 06:37:19,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20950 states to 20950 states and 25329 transitions. [2021-11-04 06:37:19,217 INFO L78 Accepts]: Start accepts. Automaton has 20950 states and 25329 transitions. Word has length 75 [2021-11-04 06:37:19,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:37:19,218 INFO L470 AbstractCegarLoop]: Abstraction has 20950 states and 25329 transitions. [2021-11-04 06:37:19,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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) [2021-11-04 06:37:19,219 INFO L276 IsEmpty]: Start isEmpty. Operand 20950 states and 25329 transitions. [2021-11-04 06:37:19,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-04 06:37:19,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:37:19,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:37:19,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 06:37:19,225 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-04 06:37:19,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:37:19,226 INFO L85 PathProgramCache]: Analyzing trace with hash -199472284, now seen corresponding path program 1 times [2021-11-04 06:37:19,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:37:19,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61223019] [2021-11-04 06:37:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:37:19,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:37:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:37:19,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:37:19,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:37:19,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61223019] [2021-11-04 06:37:19,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61223019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:37:19,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:37:19,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:37:19,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138357112] [2021-11-04 06:37:19,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:37:19,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:37:19,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:37:19,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:37:19,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:37:19,578 INFO L87 Difference]: Start difference. First operand 20950 states and 25329 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-04 06:37:23,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 06:37:31,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:33,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:34,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:35,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:37:38,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:38:08,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:38:11,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:38:29,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:39:12,678 INFO L93 Difference]: Finished difference Result 41885 states and 50667 transitions. [2021-11-04 06:39:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:39:12,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-04 06:39:12,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:39:12,725 INFO L225 Difference]: With dead ends: 41885 [2021-11-04 06:39:12,726 INFO L226 Difference]: Without dead ends: 20975 [2021-11-04 06:39:12,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.21ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:39:12,760 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 25217 mSDsCounter, 0 mSdLazyCounter, 50629 mSolverCounterSat, 48 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101259.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 50680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 93.15ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 50629 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111872.09ms IncrementalHoareTripleChecker+Time [2021-11-04 06:39:12,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 50680 Unknown, 0 Unchecked, 93.15ms Time], IncrementalHoareTripleChecker [48 Valid, 50629 Invalid, 3 Unknown, 0 Unchecked, 111872.09ms Time] [2021-11-04 06:39:12,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20975 states. [2021-11-04 06:39:13,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20975 to 20975. [2021-11-04 06:39:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20975 states, 20890 states have (on average 1.2136907611297272) internal successors, (25354), 20974 states have internal predecessors, (25354), 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) [2021-11-04 06:39:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20975 states to 20975 states and 25354 transitions. [2021-11-04 06:39:13,106 INFO L78 Accepts]: Start accepts. Automaton has 20975 states and 25354 transitions. Word has length 75 [2021-11-04 06:39:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:39:13,107 INFO L470 AbstractCegarLoop]: Abstraction has 20975 states and 25354 transitions. [2021-11-04 06:39:13,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-04 06:39:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 20975 states and 25354 transitions. [2021-11-04 06:39:13,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-04 06:39:13,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:39:13,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:39:13,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 06:39:13,110 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-04 06:39:13,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:39:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1741543456, now seen corresponding path program 1 times [2021-11-04 06:39:13,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:39:13,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427644584] [2021-11-04 06:39:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:39:13,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:39:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:39:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 06:39:13,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:39:13,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427644584] [2021-11-04 06:39:13,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427644584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:39:13,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:39:13,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:39:13,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654517696] [2021-11-04 06:39:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:39:13,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:39:13,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:39:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:39:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:39:13,347 INFO L87 Difference]: Start difference. First operand 20975 states and 25354 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-04 06:39:21,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:23,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:39:26,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:19,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:40:59,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:40:59,491 INFO L93 Difference]: Finished difference Result 41907 states and 50667 transitions. [2021-11-04 06:40:59,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:40:59,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-04 06:40:59,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:40:59,530 INFO L225 Difference]: With dead ends: 41907 [2021-11-04 06:40:59,530 INFO L226 Difference]: Without dead ends: 20980 [2021-11-04 06:40:59,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:40:59,562 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 25215 mSDsCounter, 0 mSdLazyCounter, 50647 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93112.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 50658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.85ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50647 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105229.41ms IncrementalHoareTripleChecker+Time [2021-11-04 06:40:59,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 50658 Unknown, 0 Unchecked, 64.85ms Time], IncrementalHoareTripleChecker [8 Valid, 50647 Invalid, 3 Unknown, 0 Unchecked, 105229.41ms Time] [2021-11-04 06:40:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20980 states. [2021-11-04 06:40:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20980 to 20980. [2021-11-04 06:40:59,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20980 states, 20895 states have (on average 1.2136396267049534) internal successors, (25359), 20979 states have internal predecessors, (25359), 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) [2021-11-04 06:40:59,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20980 states to 20980 states and 25359 transitions. [2021-11-04 06:40:59,883 INFO L78 Accepts]: Start accepts. Automaton has 20980 states and 25359 transitions. Word has length 79 [2021-11-04 06:40:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:40:59,885 INFO L470 AbstractCegarLoop]: Abstraction has 20980 states and 25359 transitions. [2021-11-04 06:40:59,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-04 06:40:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 20980 states and 25359 transitions. [2021-11-04 06:40:59,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-04 06:40:59,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:40:59,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:40:59,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 06:40:59,888 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-04 06:40:59,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:40:59,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2049530660, now seen corresponding path program 1 times [2021-11-04 06:40:59,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:40:59,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030493344] [2021-11-04 06:40:59,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:40:59,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:41:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:41:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 06:41:00,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:41:00,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030493344] [2021-11-04 06:41:00,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030493344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:41:00,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:41:00,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:41:00,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392799996] [2021-11-04 06:41:00,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:41:00,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:41:00,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:41:00,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:41:00,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:41:00,162 INFO L87 Difference]: Start difference. First operand 20980 states and 25359 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-11-04 06:41:02,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:41:09,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:41:16,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:44:03,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:44:03,916 INFO L93 Difference]: Finished difference Result 62649 states and 75766 transitions. [2021-11-04 06:44:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:44:03,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2021-11-04 06:44:03,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:44:04,006 INFO L225 Difference]: With dead ends: 62649 [2021-11-04 06:44:04,006 INFO L226 Difference]: Without dead ends: 41740 [2021-11-04 06:44:04,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:44:04,051 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 25100 mSDsluCounter, 25309 mSDsCounter, 0 mSdLazyCounter, 50646 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 147407.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25100 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 50650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 134.14ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50646 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181437.60ms IncrementalHoareTripleChecker+Time [2021-11-04 06:44:04,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25100 Valid, 0 Invalid, 50650 Unknown, 0 Unchecked, 134.14ms Time], IncrementalHoareTripleChecker [3 Valid, 50646 Invalid, 1 Unknown, 0 Unchecked, 181437.60ms Time] [2021-11-04 06:44:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41740 states. [2021-11-04 06:44:04,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41740 to 41546. [2021-11-04 06:44:04,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41546 states, 41461 states have (on average 1.2143218928631727) internal successors, (50347), 41545 states have internal predecessors, (50347), 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) [2021-11-04 06:44:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41546 states to 41546 states and 50347 transitions. [2021-11-04 06:44:05,046 INFO L78 Accepts]: Start accepts. Automaton has 41546 states and 50347 transitions. Word has length 83 [2021-11-04 06:44:05,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:44:05,046 INFO L470 AbstractCegarLoop]: Abstraction has 41546 states and 50347 transitions. [2021-11-04 06:44:05,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-11-04 06:44:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 41546 states and 50347 transitions. [2021-11-04 06:44:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 06:44:05,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:44:05,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:44:05,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 06:44:05,048 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-04 06:44:05,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:44:05,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1873231074, now seen corresponding path program 1 times [2021-11-04 06:44:05,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:44:05,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480234556] [2021-11-04 06:44:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:44:05,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:44:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:44:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 06:44:05,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:44:05,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480234556] [2021-11-04 06:44:05,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480234556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:44:05,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:44:05,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:44:05,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618079442] [2021-11-04 06:44:05,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:44:05,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:44:05,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:44:05,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:44:05,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:44:05,327 INFO L87 Difference]: Start difference. First operand 41546 states and 50347 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-04 06:44:09,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 06:44:14,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:44:16,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:44:18,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:44:21,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 06:45:45,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:47:25,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:47:25,664 INFO L93 Difference]: Finished difference Result 115462 states and 139965 transitions. [2021-11-04 06:47:25,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:47:25,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2021-11-04 06:47:25,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:47:25,816 INFO L225 Difference]: With dead ends: 115462 [2021-11-04 06:47:25,816 INFO L226 Difference]: Without dead ends: 73987 [2021-11-04 06:47:25,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:47:25,891 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 19816 mSDsluCounter, 25231 mSDsCounter, 0 mSdLazyCounter, 50583 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160370.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19816 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 50589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 118.94ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50583 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 197417.33ms IncrementalHoareTripleChecker+Time [2021-11-04 06:47:25,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19816 Valid, 0 Invalid, 50589 Unknown, 0 Unchecked, 118.94ms Time], IncrementalHoareTripleChecker [2 Valid, 50583 Invalid, 4 Unknown, 0 Unchecked, 197417.33ms Time] [2021-11-04 06:47:25,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73987 states. [2021-11-04 06:47:27,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73987 to 73665. [2021-11-04 06:47:27,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73665 states, 73580 states have (on average 1.2147186735525959) internal successors, (89379), 73664 states have internal predecessors, (89379), 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) [2021-11-04 06:47:27,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73665 states to 73665 states and 89379 transitions. [2021-11-04 06:47:27,338 INFO L78 Accepts]: Start accepts. Automaton has 73665 states and 89379 transitions. Word has length 87 [2021-11-04 06:47:27,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:47:27,339 INFO L470 AbstractCegarLoop]: Abstraction has 73665 states and 89379 transitions. [2021-11-04 06:47:27,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-04 06:47:27,339 INFO L276 IsEmpty]: Start isEmpty. Operand 73665 states and 89379 transitions. [2021-11-04 06:47:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-04 06:47:27,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:47:27,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:47:27,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 06:47:27,340 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-04 06:47:27,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:47:27,341 INFO L85 PathProgramCache]: Analyzing trace with hash 187595788, now seen corresponding path program 1 times [2021-11-04 06:47:27,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:47:27,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187046209] [2021-11-04 06:47:27,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:47:27,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:47:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:47:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 06:47:27,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:47:27,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187046209] [2021-11-04 06:47:27,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187046209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:47:27,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:47:27,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 06:47:27,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280797295] [2021-11-04 06:47:27,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:47:27,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:47:27,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:47:27,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:47:27,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:47:27,642 INFO L87 Difference]: Start difference. First operand 73665 states and 89379 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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) [2021-11-04 06:47:33,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 06:47:39,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:47:41,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:47:43,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:47:47,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-04 06:48:18,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:48:55,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:49:07,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:49:10,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:49:30,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15