./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 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-5f08f0f [2021-11-05 18:15:16,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 18:15:16,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 18:15:16,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 18:15:16,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 18:15:16,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 18:15:16,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 18:15:16,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 18:15:16,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 18:15:16,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 18:15:16,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 18:15:16,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 18:15:16,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 18:15:16,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 18:15:16,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 18:15:16,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 18:15:16,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 18:15:16,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 18:15:16,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 18:15:16,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 18:15:16,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 18:15:16,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 18:15:16,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 18:15:16,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 18:15:16,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 18:15:16,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 18:15:16,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 18:15:16,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 18:15:16,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 18:15:16,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 18:15:16,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 18:15:16,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 18:15:16,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 18:15:16,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 18:15:16,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 18:15:16,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 18:15:16,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 18:15:16,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 18:15:16,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 18:15:16,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 18:15:16,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 18:15:16,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 18:15:16,934 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 18:15:16,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 18:15:16,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 18:15:16,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 18:15:16,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 18:15:16,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 18:15:16,937 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 18:15:16,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 18:15:16,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 18:15:16,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 18:15:16,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 18:15:16,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 18:15:16,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 18:15:16,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 18:15:16,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 18:15:16,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 18:15:16,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 18:15:16,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 18:15:16,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 18:15:16,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:15:16,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 18:15:16,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 18:15:16,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 18:15:16,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 18:15:16,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 18:15:16,940 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 18:15:16,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 18:15:16,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 18:15:16,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 18:15:16,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a [2021-11-05 18:15:17,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 18:15:17,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 18:15:17,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 18:15:17,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 18:15:17,246 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 18:15:17,247 INFO L432 ainManager$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 [2021-11-05 18:15:17,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f265cba/9d32603ba694419fae21971657979d8d/FLAGde24aaf6a [2021-11-05 18:15:17,955 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 18:15:17,955 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 [2021-11-05 18:15:17,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f265cba/9d32603ba694419fae21971657979d8d/FLAGde24aaf6a [2021-11-05 18:15:18,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f265cba/9d32603ba694419fae21971657979d8d [2021-11-05 18:15:18,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 18:15:18,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 18:15:18,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 18:15:18,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 18:15:18,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 18:15:18,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:15:18" (1/1) ... [2021-11-05 18:15:18,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761d6193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:18, skipping insertion in model container [2021-11-05 18:15:18,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:15:18" (1/1) ... [2021-11-05 18:15:18,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 18:15:18,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 18:15:20,856 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] [2021-11-05 18:15:21,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:15:21,203 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 18:15:21,587 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] [2021-11-05 18:15:21,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:15:21,842 INFO L208 MainTranslator]: Completed translation [2021-11-05 18:15:21,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21 WrapperNode [2021-11-05 18:15:21,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 18:15:21,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 18:15:21,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 18:15:21,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 18:15:21,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:21,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:25,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 18:15:25,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 18:15:25,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 18:15:25,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 18:15:25,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:25,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:26,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:26,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:28,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:28,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:28,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:29,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 18:15:29,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 18:15:29,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 18:15:29,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 18:15:29,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (1/1) ... [2021-11-05 18:15:29,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:15:29,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:15:29,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 18:15:29,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 18:15:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 18:15:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 18:15:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 18:15:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 18:15:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 18:15:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 18:15:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 18:15:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 18:15:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 18:15:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 18:15:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 18:15:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 18:15:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 18:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-05 18:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 18:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 18:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 18:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 18:16:20,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 18:16:20,835 INFO L299 CfgBuilder]: Removed 33698 assume(true) statements. [2021-11-05 18:16:20,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:16:20 BoogieIcfgContainer [2021-11-05 18:16:20,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 18:16:20,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 18:16:20,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 18:16:20,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 18:16:20,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 06:15:18" (1/3) ... [2021-11-05 18:16:20,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fd6e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:16:20, skipping insertion in model container [2021-11-05 18:16:20,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:15:21" (2/3) ... [2021-11-05 18:16:20,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fd6e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:16:20, skipping insertion in model container [2021-11-05 18:16:20,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:16:20" (3/3) ... [2021-11-05 18:16:20,854 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-11-05 18:16:20,857 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 18:16:20,857 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 85 error locations. [2021-11-05 18:16:20,930 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 18:16:20,934 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 18:16:20,935 INFO L340 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2021-11-05 18:16:21,115 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) [2021-11-05 18:16:21,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 18:16:21,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:16:21,124 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] [2021-11-05 18:16:21,125 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)] === [2021-11-05 18:16:21,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:16:21,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1308193230, now seen corresponding path program 1 times [2021-11-05 18:16:21,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:16:21,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817545807] [2021-11-05 18:16:21,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:16:21,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:16:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:16:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:16:21,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:16:21,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817545807] [2021-11-05 18:16:21,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817545807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:16:21,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:16:21,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:16:21,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433539420] [2021-11-05 18:16:21,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:16:21,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 18:16:21,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:16:21,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 18:16:21,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 18:16:21,840 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) [2021-11-05 18:16:22,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:16:22,251 INFO L93 Difference]: Finished difference Result 41946 states and 51083 transitions. [2021-11-05 18:16:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 18:16:22,253 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 [2021-11-05 18:16:22,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:16:22,337 INFO L225 Difference]: With dead ends: 41946 [2021-11-05 18:16:22,337 INFO L226 Difference]: Without dead ends: 20950 [2021-11-05 18:16:22,387 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 [2021-11-05 18:16:22,390 INFO L933 BasicCegarLoop]: 25375 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25375 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.87ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 18:16:22,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25375 Invalid, 0 Unknown, 0 Unchecked, 36.87ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 18:16:22,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20950 states. [2021-11-05 18:16:22,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20950 to 20950. [2021-11-05 18:16:22,842 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) [2021-11-05 18:16:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20950 states to 20950 states and 25329 transitions. [2021-11-05 18:16:22,891 INFO L78 Accepts]: Start accepts. Automaton has 20950 states and 25329 transitions. Word has length 75 [2021-11-05 18:16:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:16:22,891 INFO L470 AbstractCegarLoop]: Abstraction has 20950 states and 25329 transitions. [2021-11-05 18:16:22,892 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) [2021-11-05 18:16:22,892 INFO L276 IsEmpty]: Start isEmpty. Operand 20950 states and 25329 transitions. [2021-11-05 18:16:22,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 18:16:22,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:16:22,899 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] [2021-11-05 18:16:22,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 18:16:22,899 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)] === [2021-11-05 18:16:22,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:16:22,901 INFO L85 PathProgramCache]: Analyzing trace with hash -199472284, now seen corresponding path program 1 times [2021-11-05 18:16:22,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:16:22,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110694561] [2021-11-05 18:16:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:16:22,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:16:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:16:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:16:23,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:16:23,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110694561] [2021-11-05 18:16:23,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110694561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:16:23,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:16:23,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:16:23,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631283806] [2021-11-05 18:16:23,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:16:23,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:16:23,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:16:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:16:23,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:23,207 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) [2021-11-05 18:16:25,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:16:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:16:26,376 INFO L93 Difference]: Finished difference Result 62600 states and 75719 transitions. [2021-11-05 18:16:26,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:16:26,377 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 [2021-11-05 18:16:26,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:16:26,478 INFO L225 Difference]: With dead ends: 62600 [2021-11-05 18:16:26,479 INFO L226 Difference]: Without dead ends: 41713 [2021-11-05 18:16:26,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:26,523 INFO L933 BasicCegarLoop]: 25326 mSDtfsCounter, 25128 mSDsluCounter, 25310 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2103.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25128 SdHoareTripleChecker+Valid, 50636 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.11ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2208.56ms IncrementalHoareTripleChecker+Time [2021-11-05 18:16:26,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25128 Valid, 50636 Invalid, 15 Unknown, 0 Unchecked, 71.11ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2208.56ms Time] [2021-11-05 18:16:26,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41713 states. [2021-11-05 18:16:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41713 to 41557. [2021-11-05 18:16:27,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41557 states, 41472 states have (on average 1.214795524691358) internal successors, (50380), 41556 states have internal predecessors, (50380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:27,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41557 states to 41557 states and 50380 transitions. [2021-11-05 18:16:27,534 INFO L78 Accepts]: Start accepts. Automaton has 41557 states and 50380 transitions. Word has length 75 [2021-11-05 18:16:27,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:16:27,537 INFO L470 AbstractCegarLoop]: Abstraction has 41557 states and 50380 transitions. [2021-11-05 18:16:27,537 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) [2021-11-05 18:16:27,537 INFO L276 IsEmpty]: Start isEmpty. Operand 41557 states and 50380 transitions. [2021-11-05 18:16:27,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 18:16:27,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:16:27,541 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] [2021-11-05 18:16:27,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 18:16:27,541 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-05 18:16:27,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:16:27,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1579573098, now seen corresponding path program 1 times [2021-11-05 18:16:27,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:16:27,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590607061] [2021-11-05 18:16:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:16:27,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:16:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:16:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:16:27,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:16:27,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590607061] [2021-11-05 18:16:27,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590607061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:16:27,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:16:27,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:16:27,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309301296] [2021-11-05 18:16:27,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:16:27,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:16:27,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:16:27,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:16:27,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:27,774 INFO L87 Difference]: Start difference. First operand 41557 states and 50380 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) [2021-11-05 18:16:29,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:16:29,041 INFO L93 Difference]: Finished difference Result 115734 states and 140363 transitions. [2021-11-05 18:16:29,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:16:29,042 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 [2021-11-05 18:16:29,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:16:29,199 INFO L225 Difference]: With dead ends: 115734 [2021-11-05 18:16:29,200 INFO L226 Difference]: Without dead ends: 74240 [2021-11-05 18:16:29,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:29,284 INFO L933 BasicCegarLoop]: 25332 mSDtfsCounter, 19974 mSDsluCounter, 25234 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19974 SdHoareTripleChecker+Valid, 50566 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.64ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122.65ms IncrementalHoareTripleChecker+Time [2021-11-05 18:16:29,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19974 Valid, 50566 Invalid, 26 Unknown, 0 Unchecked, 46.64ms Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 122.65ms Time] [2021-11-05 18:16:29,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74240 states. [2021-11-05 18:16:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74240 to 74032. [2021-11-05 18:16:30,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74032 states, 73947 states have (on average 1.2158708264026938) internal successors, (89910), 74031 states have internal predecessors, (89910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74032 states to 74032 states and 89910 transitions. [2021-11-05 18:16:30,720 INFO L78 Accepts]: Start accepts. Automaton has 74032 states and 89910 transitions. Word has length 79 [2021-11-05 18:16:30,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:16:30,721 INFO L470 AbstractCegarLoop]: Abstraction has 74032 states and 89910 transitions. [2021-11-05 18:16:30,721 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) [2021-11-05 18:16:30,722 INFO L276 IsEmpty]: Start isEmpty. Operand 74032 states and 89910 transitions. [2021-11-05 18:16:30,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-05 18:16:30,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:16:30,724 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] [2021-11-05 18:16:30,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 18:16:30,724 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)] === [2021-11-05 18:16:30,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:16:30,725 INFO L85 PathProgramCache]: Analyzing trace with hash -325866876, now seen corresponding path program 1 times [2021-11-05 18:16:30,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:16:30,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607982221] [2021-11-05 18:16:30,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:16:30,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:16:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:16:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:16:30,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:16:30,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607982221] [2021-11-05 18:16:30,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607982221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:16:30,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:16:30,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:16:30,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838228003] [2021-11-05 18:16:30,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:16:30,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:16:30,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:16:30,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:16:30,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:30,999 INFO L87 Difference]: Start difference. First operand 74032 states and 89910 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:32,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:16:32,926 INFO L93 Difference]: Finished difference Result 147353 states and 178962 transitions. [2021-11-05 18:16:32,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:16:32,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2021-11-05 18:16:32,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:16:33,197 INFO L225 Difference]: With dead ends: 147353 [2021-11-05 18:16:33,197 INFO L226 Difference]: Without dead ends: 147243 [2021-11-05 18:16:33,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:33,243 INFO L933 BasicCegarLoop]: 25320 mSDtfsCounter, 25051 mSDsluCounter, 24969 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 183.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25051 SdHoareTripleChecker+Valid, 50289 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.38ms SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 236.21ms IncrementalHoareTripleChecker+Time [2021-11-05 18:16:33,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25051 Valid, 50289 Invalid, 273 Unknown, 0 Unchecked, 43.38ms Time], IncrementalHoareTripleChecker [109 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 236.21ms Time] [2021-11-05 18:16:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147243 states. [2021-11-05 18:16:35,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147243 to 147195. [2021-11-05 18:16:35,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147195 states, 147110 states have (on average 1.2145469376656923) internal successors, (178672), 147194 states have internal predecessors, (178672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:36,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147195 states to 147195 states and 178672 transitions. [2021-11-05 18:16:36,412 INFO L78 Accepts]: Start accepts. Automaton has 147195 states and 178672 transitions. Word has length 80 [2021-11-05 18:16:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:16:36,413 INFO L470 AbstractCegarLoop]: Abstraction has 147195 states and 178672 transitions. [2021-11-05 18:16:36,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 147195 states and 178672 transitions. [2021-11-05 18:16:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-05 18:16:36,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:16:36,414 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] [2021-11-05 18:16:36,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 18:16:36,414 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-05 18:16:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:16:36,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1511872690, now seen corresponding path program 1 times [2021-11-05 18:16:36,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:16:36,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109586981] [2021-11-05 18:16:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:16:36,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:16:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:16:36,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:16:36,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:16:36,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109586981] [2021-11-05 18:16:36,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109586981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:16:36,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:16:36,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:16:36,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988395496] [2021-11-05 18:16:36,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:16:36,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:16:36,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:16:36,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:16:36,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:36,667 INFO L87 Difference]: Start difference. First operand 147195 states and 178672 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:38,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:16:38,626 INFO L93 Difference]: Finished difference Result 147195 states and 178672 transitions. [2021-11-05 18:16:38,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:16:38,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2021-11-05 18:16:38,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:16:39,061 INFO L225 Difference]: With dead ends: 147195 [2021-11-05 18:16:39,061 INFO L226 Difference]: Without dead ends: 147193 [2021-11-05 18:16:39,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:39,105 INFO L933 BasicCegarLoop]: 25326 mSDtfsCounter, 25248 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25248 SdHoareTripleChecker+Valid, 25326 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.38ms IncrementalHoareTripleChecker+Time [2021-11-05 18:16:39,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25248 Valid, 25326 Invalid, 1 Unknown, 0 Unchecked, 26.26ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.38ms Time] [2021-11-05 18:16:39,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147193 states. [2021-11-05 18:16:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147193 to 147193. [2021-11-05 18:16:42,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147193 states, 147109 states have (on average 1.2145415984066237) internal successors, (178670), 147192 states have internal predecessors, (178670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147193 states to 147193 states and 178670 transitions. [2021-11-05 18:16:42,357 INFO L78 Accepts]: Start accepts. Automaton has 147193 states and 178670 transitions. Word has length 81 [2021-11-05 18:16:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:16:42,357 INFO L470 AbstractCegarLoop]: Abstraction has 147193 states and 178670 transitions. [2021-11-05 18:16:42,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 147193 states and 178670 transitions. [2021-11-05 18:16:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 18:16:42,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:16:42,359 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] [2021-11-05 18:16:42,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 18:16:42,359 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-05 18:16:42,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:16:42,359 INFO L85 PathProgramCache]: Analyzing trace with hash 376652750, now seen corresponding path program 1 times [2021-11-05 18:16:42,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:16:42,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504077093] [2021-11-05 18:16:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:16:42,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:16:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:16:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:16:42,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:16:42,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504077093] [2021-11-05 18:16:42,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504077093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:16:42,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:16:42,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:16:42,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921116595] [2021-11-05 18:16:42,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:16:42,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:16:42,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:16:42,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:16:42,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:42,594 INFO L87 Difference]: Start difference. First operand 147193 states and 178670 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:16:45,020 INFO L93 Difference]: Finished difference Result 147193 states and 178670 transitions. [2021-11-05 18:16:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:16:45,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 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 82 [2021-11-05 18:16:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:16:45,281 INFO L225 Difference]: With dead ends: 147193 [2021-11-05 18:16:45,281 INFO L226 Difference]: Without dead ends: 147191 [2021-11-05 18:16:45,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:16:45,333 INFO L933 BasicCegarLoop]: 25324 mSDtfsCounter, 25245 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25245 SdHoareTripleChecker+Valid, 25324 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.01ms IncrementalHoareTripleChecker+Time [2021-11-05 18:16:45,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25245 Valid, 25324 Invalid, 1 Unknown, 0 Unchecked, 26.22ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.01ms Time] [2021-11-05 18:16:45,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147191 states. [2021-11-05 18:16:48,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147191 to 147191. [2021-11-05 18:16:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147191 states, 147108 states have (on average 1.2145362590749653) internal successors, (178668), 147190 states have internal predecessors, (178668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147191 states to 147191 states and 178668 transitions. [2021-11-05 18:16:48,981 INFO L78 Accepts]: Start accepts. Automaton has 147191 states and 178668 transitions. Word has length 82 [2021-11-05 18:16:48,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:16:48,981 INFO L470 AbstractCegarLoop]: Abstraction has 147191 states and 178668 transitions. [2021-11-05 18:16:48,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:16:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 147191 states and 178668 transitions. [2021-11-05 18:16:48,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-05 18:16:48,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:16:48,982 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] [2021-11-05 18:16:48,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 18:16:48,982 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 82 more)] === [2021-11-05 18:16:48,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:16:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1208600744, now seen corresponding path program 1 times [2021-11-05 18:16:48,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:16:48,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415782368] [2021-11-05 18:16:48,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:16:48,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms