./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 02:50:57,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 02:50:57,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 02:50:57,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 02:50:57,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 02:50:57,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 02:50:57,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 02:50:57,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 02:50:57,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 02:50:57,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 02:50:57,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 02:50:57,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 02:50:57,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 02:50:57,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 02:50:57,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 02:50:57,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 02:50:57,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 02:50:57,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 02:50:57,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 02:50:57,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 02:50:57,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 02:50:57,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 02:50:57,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 02:50:57,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 02:50:57,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 02:50:57,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 02:50:57,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 02:50:57,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 02:50:57,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 02:50:57,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 02:50:57,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 02:50:57,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 02:50:57,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 02:50:57,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 02:50:57,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 02:50:57,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 02:50:57,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 02:50:57,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 02:50:57,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 02:50:57,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 02:50:57,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 02:50:57,637 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 02:50:57,660 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 02:50:57,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 02:50:57,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 02:50:57,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 02:50:57,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 02:50:57,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 02:50:57,664 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 02:50:57,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 02:50:57,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 02:50:57,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 02:50:57,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 02:50:57,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 02:50:57,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 02:50:57,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 02:50:57,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 02:50:57,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 02:50:57,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 02:50:57,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 02:50:57,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 02:50:57,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 02:50:57,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 02:50:57,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 02:50:57,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 02:50:57,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 02:50:57,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 02:50:57,667 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 02:50:57,667 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 02:50:57,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 02:50:57,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 02:50:57,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2021-11-04 02:50:57,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 02:50:57,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 02:50:57,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 02:50:57,871 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 02:50:57,872 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 02:50:57,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2021-11-04 02:50:57,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/881fb010a/fd2674a7df47443692f92ed2fb48e3b4/FLAGadde96c21 [2021-11-04 02:50:58,471 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 02:50:58,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2021-11-04 02:50:58,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/881fb010a/fd2674a7df47443692f92ed2fb48e3b4/FLAGadde96c21 [2021-11-04 02:50:58,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/881fb010a/fd2674a7df47443692f92ed2fb48e3b4 [2021-11-04 02:50:58,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 02:50:58,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 02:50:58,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 02:50:58,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 02:50:58,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 02:50:58,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 02:50:58" (1/1) ... [2021-11-04 02:50:58,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2883aa2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:58, skipping insertion in model container [2021-11-04 02:50:58,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 02:50:58" (1/1) ... [2021-11-04 02:50:58,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 02:50:58,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 02:50:59,509 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2021-11-04 02:50:59,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 02:50:59,575 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 02:50:59,732 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2021-11-04 02:50:59,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 02:50:59,873 INFO L208 MainTranslator]: Completed translation [2021-11-04 02:50:59,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59 WrapperNode [2021-11-04 02:50:59,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 02:50:59,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 02:50:59,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 02:50:59,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 02:50:59,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:50:59,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:05,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 02:51:05,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 02:51:05,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 02:51:05,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 02:51:05,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:05,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:06,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:06,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:08,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:09,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:09,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:10,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 02:51:10,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 02:51:10,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 02:51:10,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 02:51:10,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (1/1) ... [2021-11-04 02:51:10,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 02:51:10,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 02:51:10,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 02:51:10,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 02:51:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 02:51:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 02:51:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 02:51:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 02:51:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 02:51:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 02:51:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 02:51:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 02:51:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 02:51:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 02:51:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 02:51:25,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 02:51:25,130 INFO L299 CfgBuilder]: Removed 51122 assume(true) statements. [2021-11-04 02:51:25,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 02:51:25 BoogieIcfgContainer [2021-11-04 02:51:25,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 02:51:25,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 02:51:25,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 02:51:25,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 02:51:25,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 02:50:58" (1/3) ... [2021-11-04 02:51:25,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66039748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 02:51:25, skipping insertion in model container [2021-11-04 02:51:25,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:50:59" (2/3) ... [2021-11-04 02:51:25,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66039748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 02:51:25, skipping insertion in model container [2021-11-04 02:51:25,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 02:51:25" (3/3) ... [2021-11-04 02:51:25,175 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2021-11-04 02:51:25,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 02:51:25,180 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1885 error locations. [2021-11-04 02:51:25,304 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 02:51:25,308 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 02:51:25,309 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1885 error locations. [2021-11-04 02:51:25,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 47060 states, 45174 states have (on average 1.352392969407181) internal successors, (61093), 47059 states have internal predecessors, (61093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:51:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-04 02:51:25,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:51:25,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 02:51:25,928 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1882 more)] === [2021-11-04 02:51:25,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:51:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1728137145, now seen corresponding path program 1 times [2021-11-04 02:51:25,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:51:25,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805053726] [2021-11-04 02:51:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:51:25,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:51:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:51:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:51:26,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:51:26,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805053726] [2021-11-04 02:51:26,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805053726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:51:26,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:51:26,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:51:26,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421907406] [2021-11-04 02:51:26,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:51:26,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:51:26,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:51:26,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:51:26,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:51:26,678 INFO L87 Difference]: Start difference. First operand has 47060 states, 45174 states have (on average 1.352392969407181) internal successors, (61093), 47059 states have internal predecessors, (61093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:51:28,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:51:44,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:52:08,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:52:15,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:52:22,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:52:36,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:54:10,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:56:42,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:56:42,752 INFO L93 Difference]: Finished difference Result 140159 states and 181965 transitions. [2021-11-04 02:56:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:56:42,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-04 02:56:42,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:56:43,349 INFO L225 Difference]: With dead ends: 140159 [2021-11-04 02:56:43,350 INFO L226 Difference]: Without dead ends: 93094 [2021-11-04 02:56:43,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:56:43,480 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 57007 mSDsluCounter, 58244 mSDsCounter, 0 mSdLazyCounter, 116506 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 275983.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57007 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 116514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 471.93ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116506 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 308751.08ms IncrementalHoareTripleChecker+Time [2021-11-04 02:56:43,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57007 Valid, 0 Invalid, 116514 Unknown, 0 Unchecked, 471.93ms Time], IncrementalHoareTripleChecker [1 Valid, 116506 Invalid, 7 Unknown, 0 Unchecked, 308751.08ms Time] [2021-11-04 02:56:43,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93094 states. [2021-11-04 02:56:45,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93094 to 89382. [2021-11-04 02:56:45,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89382 states, 87497 states have (on average 1.295770140690538) internal successors, (113376), 89381 states have internal predecessors, (113376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:56:45,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89382 states to 89382 states and 113376 transitions. [2021-11-04 02:56:45,590 INFO L78 Accepts]: Start accepts. Automaton has 89382 states and 113376 transitions. Word has length 15 [2021-11-04 02:56:45,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:56:45,591 INFO L470 AbstractCegarLoop]: Abstraction has 89382 states and 113376 transitions. [2021-11-04 02:56:45,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:56:45,592 INFO L276 IsEmpty]: Start isEmpty. Operand 89382 states and 113376 transitions. [2021-11-04 02:56:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-04 02:56:45,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:56:45,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 02:56:45,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 02:56:45,599 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1882 more)] === [2021-11-04 02:56:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:56:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1858017951, now seen corresponding path program 1 times [2021-11-04 02:56:45,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:56:45,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627445109] [2021-11-04 02:56:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:56:45,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:56:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:56:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:56:45,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:56:45,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627445109] [2021-11-04 02:56:45,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627445109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:56:45,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:56:45,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:56:45,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621175781] [2021-11-04 02:56:45,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:56:45,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:56:45,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:56:45,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:56:45,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:56:45,838 INFO L87 Difference]: Start difference. First operand 89382 states and 113376 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:56:47,920 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 [] [2021-11-04 02:57:32,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:57:45,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:57:54,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:58:12,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 02:58:53,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 03:03:42,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 03:03:42,363 INFO L93 Difference]: Finished difference Result 265840 states and 337225 transitions. [2021-11-04 03:03:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 03:03:42,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-04 03:03:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 03:03:42,918 INFO L225 Difference]: With dead ends: 265840 [2021-11-04 03:03:42,919 INFO L226 Difference]: Without dead ends: 176461 [2021-11-04 03:03:43,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.07ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 03:03:43,145 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 56719 mSDsluCounter, 58241 mSDsCounter, 0 mSdLazyCounter, 117534 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 345813.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56719 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 117541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 502.69ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117534 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 408292.11ms IncrementalHoareTripleChecker+Time [2021-11-04 03:03:43,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56719 Valid, 0 Invalid, 117541 Unknown, 0 Unchecked, 502.69ms Time], IncrementalHoareTripleChecker [1 Valid, 117534 Invalid, 6 Unknown, 0 Unchecked, 408292.11ms Time] [2021-11-04 03:03:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176461 states. [2021-11-04 03:03:46,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176461 to 172767. [2021-11-04 03:03:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172767 states, 170882 states have (on average 1.2989665383129878) internal successors, (221970), 172766 states have internal predecessors, (221970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 03:03:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172767 states to 172767 states and 221970 transitions. [2021-11-04 03:03:47,533 INFO L78 Accepts]: Start accepts. Automaton has 172767 states and 221970 transitions. Word has length 16 [2021-11-04 03:03:47,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 03:03:47,534 INFO L470 AbstractCegarLoop]: Abstraction has 172767 states and 221970 transitions. [2021-11-04 03:03:47,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 03:03:47,535 INFO L276 IsEmpty]: Start isEmpty. Operand 172767 states and 221970 transitions. [2021-11-04 03:03:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-04 03:03:47,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 03:03:47,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 03:03:47,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 03:03:47,536 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1882 more)] === [2021-11-04 03:03:47,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 03:03:47,536 INFO L85 PathProgramCache]: Analyzing trace with hash -509966553, now seen corresponding path program 1 times [2021-11-04 03:03:47,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 03:03:47,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141819359] [2021-11-04 03:03:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 03:03:47,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 03:03:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 03:03:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 03:03:47,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 03:03:47,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141819359] [2021-11-04 03:03:47,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141819359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 03:03:47,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 03:03:47,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 03:03:47,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895332476] [2021-11-04 03:03:47,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 03:03:47,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 03:03:47,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 03:03:47,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 03:03:47,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 03:03:47,756 INFO L87 Difference]: Start difference. First operand 172767 states and 221970 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 03:03:49,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 03:03:55,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 03:05:09,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15