./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--wcn36xx--wcn36xx.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 eaaec3cc0f5537133af92fa7cbd54bc8d5ff0f4d0c87a0d3c9d98d3d6549f9cf --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:16:23,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:16:23,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:16:23,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:16:23,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:16:23,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:16:23,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:16:23,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:16:23,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:16:23,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:16:23,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:16:23,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:16:23,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:16:23,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:16:23,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:16:23,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:16:23,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:16:23,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:16:23,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:16:23,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:16:23,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:16:23,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:16:23,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:16:23,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:16:23,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:16:23,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:16:23,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:16:23,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:16:23,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:16:23,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:16:23,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:16:23,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:16:23,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:16:23,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:16:23,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:16:23,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:16:23,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:16:23,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:16:23,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:16:23,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:16:23,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:16:23,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:16:23,631 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:16:23,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:16:23,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:16:23,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:16:23,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:16:23,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:16:23,637 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:16:23,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:16:23,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:16:23,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:16:23,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:16:23,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:16:23,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:16:23,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:16:23,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:16:23,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:16:23,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:16:23,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:16:23,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:16:23,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:16:23,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:16:23,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:16:23,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:16:23,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:16:23,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:16:23,641 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:16:23,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:16:23,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:16:23,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:16:23,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaaec3cc0f5537133af92fa7cbd54bc8d5ff0f4d0c87a0d3c9d98d3d6549f9cf [2021-11-07 13:16:23,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:16:23,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:16:23,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:16:23,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:16:23,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:16:23,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i [2021-11-07 13:16:24,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2099c1a5d/dd5b6036c5344f0ab6b23ca47212cf9e/FLAG98e9de3f1 [2021-11-07 13:16:24,747 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:16:24,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i [2021-11-07 13:16:24,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2099c1a5d/dd5b6036c5344f0ab6b23ca47212cf9e/FLAG98e9de3f1 [2021-11-07 13:16:25,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2099c1a5d/dd5b6036c5344f0ab6b23ca47212cf9e [2021-11-07 13:16:25,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:16:25,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:16:25,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:16:25,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:16:25,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:16:25,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:16:25" (1/1) ... [2021-11-07 13:16:25,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f62990b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:25, skipping insertion in model container [2021-11-07 13:16:25,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:16:25" (1/1) ... [2021-11-07 13:16:25,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:16:25,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:16:26,625 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i[210460,210473] [2021-11-07 13:16:29,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:16:29,177 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:16:29,300 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i[210460,210473] [2021-11-07 13:16:29,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:16:29,868 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:16:29,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29 WrapperNode [2021-11-07 13:16:29,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:16:29,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:16:29,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:16:29,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:16:29,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:30,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:32,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:16:32,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:16:32,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:16:32,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:16:32,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:32,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:33,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:33,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:35,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:35,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:35,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:36,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:16:36,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:16:36,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:16:36,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:16:36,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (1/1) ... [2021-11-07 13:16:36,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:16:36,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:16:36,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 13:16:36,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 13:16:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure wcn36xx_probe [2021-11-07 13:16:36,599 INFO L138 BoogieDeclarations]: Found implementation of procedure wcn36xx_probe [2021-11-07 13:16:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 13:16:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-07 13:16:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:16:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:16:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:16:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:16:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-07 13:16:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:16:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:16:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 13:16:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 13:16:36,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 13:16:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:16:36,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:16:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:16:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:16:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:16:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:16:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:16:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:16:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:16:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-11-07 13:20:19,716 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:20:19,717 INFO L299 CfgBuilder]: Removed 10107 assume(true) statements. [2021-11-07 13:20:19,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:19 BoogieIcfgContainer [2021-11-07 13:20:19,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:20:19,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:20:19,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:20:19,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:20:19,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:16:25" (1/3) ... [2021-11-07 13:20:19,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec7590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:20:19, skipping insertion in model container [2021-11-07 13:20:19,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:16:29" (2/3) ... [2021-11-07 13:20:19,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec7590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:20:19, skipping insertion in model container [2021-11-07 13:20:19,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:19" (3/3) ... [2021-11-07 13:20:19,738 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i [2021-11-07 13:20:19,743 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:20:19,744 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 13:20:19,833 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:20:19,842 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 13:20:19,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 13:20:20,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 13072 states, 13065 states have (on average 1.4880979716800613) internal successors, (19442), 13066 states have internal predecessors, (19442), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 13:20:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 13:20:20,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:20:20,076 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] [2021-11-07 13:20:20,077 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:20:20,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:20:20,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1923473427, now seen corresponding path program 1 times [2021-11-07 13:20:20,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:20:20,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071047820] [2021-11-07 13:20:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:20:20,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:20:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:20:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:20:21,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:20:21,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071047820] [2021-11-07 13:20:21,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071047820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:20:21,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:20:21,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 13:20:21,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893916298] [2021-11-07 13:20:21,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:20:21,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 13:20:21,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:20:21,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 13:20:21,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:20:21,461 INFO L87 Difference]: Start difference. First operand has 13072 states, 13065 states have (on average 1.4880979716800613) internal successors, (19442), 13066 states have internal predecessors, (19442), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:23,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:20:25,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:20:27,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:20:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:20:30,245 INFO L93 Difference]: Finished difference Result 51978 states and 77395 transitions. [2021-11-07 13:20:30,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 13:20:30,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 37 [2021-11-07 13:20:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:20:30,457 INFO L225 Difference]: With dead ends: 51978 [2021-11-07 13:20:30,458 INFO L226 Difference]: Without dead ends: 38832 [2021-11-07 13:20:30,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 90.88ms TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2021-11-07 13:20:30,516 INFO L933 BasicCegarLoop]: 19271 mSDtfsCounter, 92384 mSDsluCounter, 78769 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 34 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6341.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 92385 SdHoareTripleChecker+Valid, 98040 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 235.49ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6644.99ms IncrementalHoareTripleChecker+Time [2021-11-07 13:20:30,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92385 Valid, 98040 Invalid, 172 Unknown, 0 Unchecked, 235.49ms Time], IncrementalHoareTripleChecker [34 Valid, 135 Invalid, 3 Unknown, 0 Unchecked, 6644.99ms Time] [2021-11-07 13:20:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38832 states. [2021-11-07 13:20:32,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38832 to 38812. [2021-11-07 13:20:32,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38812 states, 38796 states have (on average 1.476775956284153) internal successors, (57293), 38796 states have internal predecessors, (57293), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 13:20:32,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38812 states to 38812 states and 57311 transitions. [2021-11-07 13:20:32,401 INFO L78 Accepts]: Start accepts. Automaton has 38812 states and 57311 transitions. Word has length 37 [2021-11-07 13:20:32,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:20:32,403 INFO L470 AbstractCegarLoop]: Abstraction has 38812 states and 57311 transitions. [2021-11-07 13:20:32,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:32,404 INFO L276 IsEmpty]: Start isEmpty. Operand 38812 states and 57311 transitions. [2021-11-07 13:20:32,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 13:20:32,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:20:32,412 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] [2021-11-07 13:20:32,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:20:32,412 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:20:32,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:20:32,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1485643131, now seen corresponding path program 1 times [2021-11-07 13:20:32,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:20:32,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908960736] [2021-11-07 13:20:32,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:20:32,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:20:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:20:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:20:32,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:20:32,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908960736] [2021-11-07 13:20:32,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908960736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:20:32,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:20:32,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 13:20:32,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105056980] [2021-11-07 13:20:32,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:20:32,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:20:32,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:20:32,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:20:32,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:20:32,901 INFO L87 Difference]: Start difference. First operand 38812 states and 57311 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:34,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:20:34,522 INFO L93 Difference]: Finished difference Result 77551 states and 114538 transitions. [2021-11-07 13:20:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 13:20:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2021-11-07 13:20:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:20:34,660 INFO L225 Difference]: With dead ends: 77551 [2021-11-07 13:20:34,661 INFO L226 Difference]: Without dead ends: 38811 [2021-11-07 13:20:34,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:20:34,752 INFO L933 BasicCegarLoop]: 36658 mSDtfsCounter, 36741 mSDsluCounter, 19136 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36741 SdHoareTripleChecker+Valid, 55794 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.56ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 172.33ms IncrementalHoareTripleChecker+Time [2021-11-07 13:20:34,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36741 Valid, 55794 Invalid, 10 Unknown, 0 Unchecked, 78.56ms Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 172.33ms Time] [2021-11-07 13:20:34,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38811 states. [2021-11-07 13:20:36,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38811 to 38811. [2021-11-07 13:20:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38811 states, 38795 states have (on average 1.4767109163552004) internal successors, (57289), 38795 states have internal predecessors, (57289), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 13:20:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38811 states to 38811 states and 57307 transitions. [2021-11-07 13:20:36,330 INFO L78 Accepts]: Start accepts. Automaton has 38811 states and 57307 transitions. Word has length 44 [2021-11-07 13:20:36,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:20:36,331 INFO L470 AbstractCegarLoop]: Abstraction has 38811 states and 57307 transitions. [2021-11-07 13:20:36,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:36,337 INFO L276 IsEmpty]: Start isEmpty. Operand 38811 states and 57307 transitions. [2021-11-07 13:20:36,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 13:20:36,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:20:36,354 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:20:36,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:20:36,354 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:20:36,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:20:36,355 INFO L85 PathProgramCache]: Analyzing trace with hash -183017348, now seen corresponding path program 1 times [2021-11-07 13:20:36,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:20:36,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599478557] [2021-11-07 13:20:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:20:36,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:20:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:20:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 13:20:36,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:20:36,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599478557] [2021-11-07 13:20:36,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599478557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:20:36,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:20:36,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 13:20:36,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256389903] [2021-11-07 13:20:36,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:20:36,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 13:20:36,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:20:36,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 13:20:36,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:20:36,915 INFO L87 Difference]: Start difference. First operand 38811 states and 57307 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:39,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:20:39,377 INFO L93 Difference]: Finished difference Result 116287 states and 171774 transitions. [2021-11-07 13:20:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:20:39,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 70 [2021-11-07 13:20:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:20:39,629 INFO L225 Difference]: With dead ends: 116287 [2021-11-07 13:20:39,630 INFO L226 Difference]: Without dead ends: 77543 [2021-11-07 13:20:39,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.54ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:20:39,733 INFO L933 BasicCegarLoop]: 19164 mSDtfsCounter, 19156 mSDsluCounter, 57402 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 384.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19156 SdHoareTripleChecker+Valid, 76566 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.66ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 450.40ms IncrementalHoareTripleChecker+Time [2021-11-07 13:20:39,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19156 Valid, 76566 Invalid, 265 Unknown, 0 Unchecked, 81.66ms Time], IncrementalHoareTripleChecker [5 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 450.40ms Time] [2021-11-07 13:20:39,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77543 states. [2021-11-07 13:20:41,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77543 to 77423. [2021-11-07 13:20:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77423 states, 77392 states have (on average 1.47724571015092) internal successors, (114327), 77392 states have internal predecessors, (114327), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (27), 18 states have call predecessors, (27), 18 states have call successors, (27) [2021-11-07 13:20:42,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77423 states to 77423 states and 114372 transitions. [2021-11-07 13:20:42,175 INFO L78 Accepts]: Start accepts. Automaton has 77423 states and 114372 transitions. Word has length 70 [2021-11-07 13:20:42,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:20:42,177 INFO L470 AbstractCegarLoop]: Abstraction has 77423 states and 114372 transitions. [2021-11-07 13:20:42,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:42,177 INFO L276 IsEmpty]: Start isEmpty. Operand 77423 states and 114372 transitions. [2021-11-07 13:20:42,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 13:20:42,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:20:42,255 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:20:42,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:20:42,255 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:20:42,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:20:42,256 INFO L85 PathProgramCache]: Analyzing trace with hash -975067269, now seen corresponding path program 1 times [2021-11-07 13:20:42,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:20:42,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154975408] [2021-11-07 13:20:42,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:20:42,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:20:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:20:42,960 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 13:20:42,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:20:42,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154975408] [2021-11-07 13:20:42,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154975408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:20:42,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:20:42,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:20:42,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618686543] [2021-11-07 13:20:42,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:20:42,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:20:42,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:20:42,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:20:42,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:20:42,964 INFO L87 Difference]: Start difference. First operand 77423 states and 114372 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:45,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:20:45,243 INFO L93 Difference]: Finished difference Result 139633 states and 205119 transitions. [2021-11-07 13:20:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:20:45,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 110 [2021-11-07 13:20:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:20:45,495 INFO L225 Difference]: With dead ends: 139633 [2021-11-07 13:20:45,496 INFO L226 Difference]: Without dead ends: 62282 [2021-11-07 13:20:45,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:20:45,642 INFO L933 BasicCegarLoop]: 19232 mSDtfsCounter, 2535 mSDsluCounter, 19004 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 340.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 38236 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.76ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 402.69ms IncrementalHoareTripleChecker+Time [2021-11-07 13:20:45,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2535 Valid, 38236 Invalid, 137 Unknown, 0 Unchecked, 29.76ms Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 402.69ms Time] [2021-11-07 13:20:45,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62282 states. [2021-11-07 13:20:47,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62282 to 62171. [2021-11-07 13:20:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62171 states, 62120 states have (on average 1.4589182227945912) internal successors, (90628), 62120 states have internal predecessors, (90628), 30 states have call successors, (30), 20 states have call predecessors, (30), 20 states have return successors, (45), 30 states have call predecessors, (45), 30 states have call successors, (45) [2021-11-07 13:20:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62171 states to 62171 states and 90703 transitions. [2021-11-07 13:20:47,756 INFO L78 Accepts]: Start accepts. Automaton has 62171 states and 90703 transitions. Word has length 110 [2021-11-07 13:20:47,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:20:47,756 INFO L470 AbstractCegarLoop]: Abstraction has 62171 states and 90703 transitions. [2021-11-07 13:20:47,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:47,757 INFO L276 IsEmpty]: Start isEmpty. Operand 62171 states and 90703 transitions. [2021-11-07 13:20:47,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 13:20:47,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:20:47,800 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:20:47,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:20:47,800 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:20:47,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:20:47,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1213888867, now seen corresponding path program 2 times [2021-11-07 13:20:47,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:20:47,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407744878] [2021-11-07 13:20:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:20:47,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:20:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:20:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:20:48,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:20:48,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407744878] [2021-11-07 13:20:48,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407744878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:20:48,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:20:48,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:20:48,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006397311] [2021-11-07 13:20:48,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:20:48,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:20:48,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:20:48,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:20:48,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:20:48,294 INFO L87 Difference]: Start difference. First operand 62171 states and 90703 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:50,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:20:52,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:20:52,631 INFO L93 Difference]: Finished difference Result 128125 states and 186738 transitions. [2021-11-07 13:20:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:20:52,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 110 [2021-11-07 13:20:52,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:20:52,846 INFO L225 Difference]: With dead ends: 128125 [2021-11-07 13:20:52,846 INFO L226 Difference]: Without dead ends: 69518 [2021-11-07 13:20:52,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:20:52,956 INFO L933 BasicCegarLoop]: 21636 mSDtfsCounter, 8836 mSDsluCounter, 12770 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 73 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2386.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8836 SdHoareTripleChecker+Valid, 34406 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.23ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2555.46ms IncrementalHoareTripleChecker+Time [2021-11-07 13:20:52,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8836 Valid, 34406 Invalid, 225 Unknown, 0 Unchecked, 25.23ms Time], IncrementalHoareTripleChecker [73 Valid, 151 Invalid, 1 Unknown, 0 Unchecked, 2555.46ms Time] [2021-11-07 13:20:53,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69518 states. [2021-11-07 13:20:54,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69518 to 69407. [2021-11-07 13:20:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69407 states, 69336 states have (on average 1.4494202146071304) internal successors, (100497), 69336 states have internal predecessors, (100497), 42 states have call successors, (42), 28 states have call predecessors, (42), 28 states have return successors, (63), 42 states have call predecessors, (63), 42 states have call successors, (63) [2021-11-07 13:20:54,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69407 states to 69407 states and 100602 transitions. [2021-11-07 13:20:54,981 INFO L78 Accepts]: Start accepts. Automaton has 69407 states and 100602 transitions. Word has length 110 [2021-11-07 13:20:54,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:20:54,981 INFO L470 AbstractCegarLoop]: Abstraction has 69407 states and 100602 transitions. [2021-11-07 13:20:54,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:20:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 69407 states and 100602 transitions. [2021-11-07 13:20:55,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 13:20:55,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:20:55,015 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:20:55,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 13:20:55,016 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:20:55,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:20:55,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1397297359, now seen corresponding path program 1 times [2021-11-07 13:20:55,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:20:55,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468099875] [2021-11-07 13:20:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:20:55,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:20:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:20:55,624 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 13:20:55,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:20:55,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468099875] [2021-11-07 13:20:55,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468099875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:20:55,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:20:55,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:20:55,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926414596] [2021-11-07 13:20:55,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:20:55,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:20:55,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:20:55,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:20:55,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:20:55,627 INFO L87 Difference]: Start difference. First operand 69407 states and 100602 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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)