./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 173e3943 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-dev-173e394 [2021-11-06 13:40:57,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 13:40:57,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 13:40:57,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 13:40:57,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 13:40:57,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 13:40:57,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 13:40:57,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 13:40:57,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 13:40:57,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 13:40:57,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 13:40:57,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 13:40:57,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 13:40:57,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 13:40:57,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 13:40:57,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 13:40:57,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 13:40:57,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 13:40:57,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 13:40:57,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 13:40:57,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 13:40:57,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 13:40:57,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 13:40:57,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 13:40:57,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 13:40:57,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 13:40:57,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 13:40:57,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 13:40:57,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 13:40:57,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 13:40:57,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 13:40:57,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 13:40:57,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 13:40:57,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 13:40:57,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 13:40:57,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 13:40:57,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 13:40:57,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 13:40:57,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 13:40:57,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 13:40:57,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 13:40:57,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 13:40:57,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 13:40:57,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 13:40:57,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 13:40:57,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 13:40:57,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 13:40:57,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 13:40:57,286 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 13:40:57,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 13:40:57,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 13:40:57,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 13:40:57,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 13:40:57,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 13:40:57,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 13:40:57,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 13:40:57,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 13:40:57,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 13:40:57,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 13:40:57,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 13:40:57,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 13:40:57,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:40:57,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 13:40:57,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 13:40:57,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 13:40:57,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 13:40:57,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 13:40:57,290 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 13:40:57,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 13:40:57,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 13:40:57,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 13:40:57,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2021-11-06 13:40:57,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 13:40:57,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 13:40:57,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 13:40:57,475 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 13:40:57,475 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 13:40:57,476 INFO L432 ainManager$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 [2021-11-06 13:40:57,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64de90b2d/112e6925bb494978bf61d383e579d737/FLAGfccb3e232 [2021-11-06 13:40:58,105 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 13:40:58,106 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 [2021-11-06 13:40:58,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64de90b2d/112e6925bb494978bf61d383e579d737/FLAGfccb3e232 [2021-11-06 13:40:58,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64de90b2d/112e6925bb494978bf61d383e579d737 [2021-11-06 13:40:58,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 13:40:58,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 13:40:58,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 13:40:58,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 13:40:58,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 13:40:58,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:40:58" (1/1) ... [2021-11-06 13:40:58,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616624ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:58, skipping insertion in model container [2021-11-06 13:40:58,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:40:58" (1/1) ... [2021-11-06 13:40:58,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 13:40:58,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 13:40:59,351 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] [2021-11-06 13:40:59,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:40:59,475 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 13:40:59,665 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] [2021-11-06 13:40:59,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:40:59,843 INFO L208 MainTranslator]: Completed translation [2021-11-06 13:40:59,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59 WrapperNode [2021-11-06 13:40:59,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 13:40:59,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 13:40:59,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 13:40:59,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 13:40:59,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:40:59,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:05,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 13:41:05,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 13:41:05,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 13:41:05,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 13:41:05,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:05,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:07,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:07,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:08,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:09,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:09,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:10,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 13:41:10,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 13:41:10,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 13:41:10,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 13:41:10,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (1/1) ... [2021-11-06 13:41:10,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:41:10,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:41:10,339 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) [2021-11-06 13:41:10,344 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 [2021-11-06 13:41:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 13:41:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 13:41:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 13:41:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 13:41:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 13:41:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 13:41:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 13:41:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 13:41:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 13:41:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 13:41:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 13:43:38,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 13:43:38,038 INFO L299 CfgBuilder]: Removed 51122 assume(true) statements. [2021-11-06 13:43:38,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:43:38 BoogieIcfgContainer [2021-11-06 13:43:38,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 13:43:38,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 13:43:38,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 13:43:38,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 13:43:38,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:40:58" (1/3) ... [2021-11-06 13:43:38,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b79ade4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:43:38, skipping insertion in model container [2021-11-06 13:43:38,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:59" (2/3) ... [2021-11-06 13:43:38,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b79ade4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:43:38, skipping insertion in model container [2021-11-06 13:43:38,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:43:38" (3/3) ... [2021-11-06 13:43:38,081 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2021-11-06 13:43:38,084 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 13:43:38,085 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1885 error locations. [2021-11-06 13:43:38,224 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 13:43:38,230 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 [2021-11-06 13:43:38,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1885 error locations. [2021-11-06 13:43:38,823 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) [2021-11-06 13:43:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-06 13:43:38,829 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:38,829 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:38,830 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)] === [2021-11-06 13:43:38,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1728137145, now seen corresponding path program 1 times [2021-11-06 13:43:38,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:38,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833018174] [2021-11-06 13:43:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:38,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:39,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:39,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:39,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833018174] [2021-11-06 13:43:39,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833018174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:39,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:39,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:39,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220235447] [2021-11-06 13:43:39,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:39,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:39,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:39,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:39,459 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) [2021-11-06 13:43:41,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:41,704 INFO L93 Difference]: Finished difference Result 140339 states and 182189 transitions. [2021-11-06 13:43:41,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:41,706 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 [2021-11-06 13:43:41,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:42,013 INFO L225 Difference]: With dead ends: 140339 [2021-11-06 13:43:42,013 INFO L226 Difference]: Without dead ends: 93274 [2021-11-06 13:43:42,126 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:42,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93274 states. [2021-11-06 13:43:44,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93274 to 89566. [2021-11-06 13:43:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89566 states, 87681 states have (on average 1.2957425211847493) internal successors, (113612), 89565 states have internal predecessors, (113612), 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) [2021-11-06 13:43:44,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89566 states to 89566 states and 113612 transitions. [2021-11-06 13:43:44,614 INFO L78 Accepts]: Start accepts. Automaton has 89566 states and 113612 transitions. Word has length 15 [2021-11-06 13:43:44,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:44,615 INFO L470 AbstractCegarLoop]: Abstraction has 89566 states and 113612 transitions. [2021-11-06 13:43:44,616 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) [2021-11-06 13:43:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 89566 states and 113612 transitions. [2021-11-06 13:43:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-06 13:43:44,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:44,622 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:44,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 13:43:44,622 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)] === [2021-11-06 13:43:44,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1858017951, now seen corresponding path program 1 times [2021-11-06 13:43:44,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:44,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612882495] [2021-11-06 13:43:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:44,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:44,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:44,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:44,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612882495] [2021-11-06 13:43:44,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612882495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:44,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:44,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:44,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2985636] [2021-11-06 13:43:44,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:44,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:44,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:44,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:44,886 INFO L87 Difference]: Start difference. First operand 89566 states and 113612 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) [2021-11-06 13:43:48,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:48,461 INFO L93 Difference]: Finished difference Result 266566 states and 338138 transitions. [2021-11-06 13:43:48,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:48,462 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 [2021-11-06 13:43:48,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:48,945 INFO L225 Difference]: With dead ends: 266566 [2021-11-06 13:43:48,945 INFO L226 Difference]: Without dead ends: 177003 [2021-11-06 13:43:49,133 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:49,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177003 states. [2021-11-06 13:43:52,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177003 to 173319. [2021-11-06 13:43:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173319 states, 171434 states have (on average 1.298913867727522) internal successors, (222678), 173318 states have internal predecessors, (222678), 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) [2021-11-06 13:43:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173319 states to 173319 states and 222678 transitions. [2021-11-06 13:43:53,171 INFO L78 Accepts]: Start accepts. Automaton has 173319 states and 222678 transitions. Word has length 16 [2021-11-06 13:43:53,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:53,172 INFO L470 AbstractCegarLoop]: Abstraction has 173319 states and 222678 transitions. [2021-11-06 13:43:53,172 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) [2021-11-06 13:43:53,172 INFO L276 IsEmpty]: Start isEmpty. Operand 173319 states and 222678 transitions. [2021-11-06 13:43:53,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 13:43:53,175 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:53,175 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:53,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 13:43:53,175 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)] === [2021-11-06 13:43:53,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash -509966553, now seen corresponding path program 1 times [2021-11-06 13:43:53,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:53,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473203565] [2021-11-06 13:43:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:53,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:53,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:53,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473203565] [2021-11-06 13:43:53,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473203565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:53,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:53,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:53,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100587626] [2021-11-06 13:43:53,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:53,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:53,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:53,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:53,389 INFO L87 Difference]: Start difference. First operand 173319 states and 222678 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) [2021-11-06 13:43:59,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:59,166 INFO L93 Difference]: Finished difference Result 516731 states and 663882 transitions. [2021-11-06 13:43:59,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:59,166 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 17 [2021-11-06 13:43:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:00,346 INFO L225 Difference]: With dead ends: 516731 [2021-11-06 13:44:00,346 INFO L226 Difference]: Without dead ends: 343415 [2021-11-06 13:44:00,824 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:01,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343415 states. [2021-11-06 13:44:07,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343415 to 339707. [2021-11-06 13:44:07,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339707 states, 337822 states have (on average 1.3005132880629444) internal successors, (439342), 339706 states have internal predecessors, (439342), 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) [2021-11-06 13:44:09,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339707 states to 339707 states and 439342 transitions. [2021-11-06 13:44:09,352 INFO L78 Accepts]: Start accepts. Automaton has 339707 states and 439342 transitions. Word has length 17 [2021-11-06 13:44:09,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:09,352 INFO L470 AbstractCegarLoop]: Abstraction has 339707 states and 439342 transitions. [2021-11-06 13:44:09,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-06 13:44:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 339707 states and 439342 transitions. [2021-11-06 13:44:09,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 13:44:09,354 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:09,354 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:09,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 13:44:09,355 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr114ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1882 more)] === [2021-11-06 13:44:09,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:09,356 INFO L85 PathProgramCache]: Analyzing trace with hash -366600154, now seen corresponding path program 1 times [2021-11-06 13:44:09,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:09,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769553699] [2021-11-06 13:44:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:09,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:09,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:09,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769553699] [2021-11-06 13:44:09,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769553699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:09,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:09,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:09,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935885159] [2021-11-06 13:44:09,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:09,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:09,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:09,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:09,592 INFO L87 Difference]: Start difference. First operand 339707 states and 439342 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)