./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--w83792d.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.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 e87ce4631152faee62991e43ea4262d58cd06d3a6c93a184b0775dd51465b70f --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 12:14:19,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 12:14:19,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 12:14:19,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 12:14:19,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 12:14:19,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 12:14:19,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 12:14:19,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 12:14:19,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 12:14:19,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 12:14:19,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 12:14:19,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 12:14:19,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 12:14:19,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 12:14:19,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 12:14:19,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 12:14:19,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 12:14:19,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 12:14:19,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 12:14:19,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 12:14:19,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 12:14:19,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 12:14:19,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 12:14:19,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 12:14:19,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 12:14:19,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 12:14:19,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 12:14:19,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 12:14:19,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 12:14:19,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 12:14:19,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 12:14:19,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 12:14:19,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 12:14:19,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 12:14:19,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 12:14:19,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 12:14:19,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 12:14:19,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 12:14:19,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 12:14:19,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 12:14:19,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 12:14:19,113 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 12:14:19,138 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 12:14:19,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 12:14:19,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 12:14:19,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 12:14:19,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 12:14:19,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 12:14:19,141 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 12:14:19,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 12:14:19,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 12:14:19,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 12:14:19,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 12:14:19,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 12:14:19,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 12:14:19,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 12:14:19,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 12:14:19,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 12:14:19,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 12:14:19,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 12:14:19,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 12:14:19,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:14:19,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 12:14:19,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 12:14:19,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 12:14:19,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 12:14:19,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 12:14:19,145 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 12:14:19,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 12:14:19,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 12:14:19,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 12:14:19,146 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e87ce4631152faee62991e43ea4262d58cd06d3a6c93a184b0775dd51465b70f [2021-11-07 12:14:19,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 12:14:19,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 12:14:19,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 12:14:19,383 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 12:14:19,395 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 12:14:19,396 INFO L432 ainManager$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--w83792d.ko-main.cil.out.i [2021-11-07 12:14:19,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec49bc280/51c66ca135d84d2988877f98547037ad/FLAGee3606b5a [2021-11-07 12:14:20,088 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 12:14:20,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.ko-main.cil.out.i [2021-11-07 12:14:20,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec49bc280/51c66ca135d84d2988877f98547037ad/FLAGee3606b5a [2021-11-07 12:14:20,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec49bc280/51c66ca135d84d2988877f98547037ad [2021-11-07 12:14:20,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 12:14:20,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 12:14:20,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 12:14:20,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 12:14:20,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 12:14:20,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:14:20" (1/1) ... [2021-11-07 12:14:20,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1a538f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:20, skipping insertion in model container [2021-11-07 12:14:20,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:14:20" (1/1) ... [2021-11-07 12:14:20,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 12:14:20,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 12:14:21,464 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--w83792d.ko-main.cil.out.i[270348,270361] [2021-11-07 12:14:21,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:14:21,600 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 12:14:21,803 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--w83792d.ko-main.cil.out.i[270348,270361] [2021-11-07 12:14:21,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:14:22,016 INFO L208 MainTranslator]: Completed translation [2021-11-07 12:14:22,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22 WrapperNode [2021-11-07 12:14:22,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 12:14:22,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 12:14:22,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 12:14:22,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 12:14:22,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:22,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:26,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 12:14:26,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 12:14:26,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 12:14:26,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 12:14:26,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:26,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:27,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:27,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:28,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:28,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:29,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:29,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 12:14:29,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 12:14:29,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 12:14:29,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 12:14:29,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (1/1) ... [2021-11-07 12:14:29,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:14:29,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:14:29,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 12:14:29,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 12:14:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 12:14:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 12:14:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 12:14:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 12:14:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 12:14:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 12:14:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 12:14:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 12:14:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 12:14:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 12:14:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 12:18:51,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 12:18:51,945 INFO L299 CfgBuilder]: Removed 21636 assume(true) statements. [2021-11-07 12:18:51,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:18:51 BoogieIcfgContainer [2021-11-07 12:18:51,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 12:18:51,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 12:18:51,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 12:18:51,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 12:18:51,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:14:20" (1/3) ... [2021-11-07 12:18:51,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543634f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:18:51, skipping insertion in model container [2021-11-07 12:18:51,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:14:22" (2/3) ... [2021-11-07 12:18:51,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543634f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:18:51, skipping insertion in model container [2021-11-07 12:18:51,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:18:51" (3/3) ... [2021-11-07 12:18:51,974 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83792d.ko-main.cil.out.i [2021-11-07 12:18:51,977 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 12:18:51,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 382 error locations. [2021-11-07 12:18:52,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 12:18:52,081 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 12:18:52,081 INFO L340 AbstractCegarLoop]: Starting to check reachability of 382 error locations. [2021-11-07 12:18:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 23748 states, 23365 states have (on average 1.2850845281403809) internal successors, (30026), 23747 states have internal predecessors, (30026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:18:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 12:18:52,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:18:52,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:18:52,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 379 more)] === [2021-11-07 12:18:52,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:18:52,488 INFO L85 PathProgramCache]: Analyzing trace with hash 842057402, now seen corresponding path program 1 times [2021-11-07 12:18:52,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:18:52,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125489788] [2021-11-07 12:18:52,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:18:52,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:18:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:18:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:18:53,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:18:53,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125489788] [2021-11-07 12:18:53,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125489788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:18:53,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:18:53,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:18:53,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265704464] [2021-11-07 12:18:53,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:18:53,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:18:53,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:18:53,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:18:53,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:18:53,497 INFO L87 Difference]: Start difference. First operand has 23748 states, 23365 states have (on average 1.2850845281403809) internal successors, (30026), 23747 states have internal predecessors, (30026), 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) [2021-11-07 12:18:55,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:18:55,015 INFO L93 Difference]: Finished difference Result 71027 states and 89808 transitions. [2021-11-07 12:18:55,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:18:55,017 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 [2021-11-07 12:18:55,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:18:55,197 INFO L225 Difference]: With dead ends: 71027 [2021-11-07 12:18:55,198 INFO L226 Difference]: Without dead ends: 47274 [2021-11-07 12:18:55,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:18:55,259 INFO L933 BasicCegarLoop]: 29450 mSDtfsCounter, 29185 mSDsluCounter, 29437 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 282.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29185 SdHoareTripleChecker+Valid, 58887 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 118.81ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 316.42ms IncrementalHoareTripleChecker+Time [2021-11-07 12:18:55,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29185 Valid, 58887 Invalid, 11 Unknown, 0 Unchecked, 118.81ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 316.42ms Time] [2021-11-07 12:18:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47274 states. [2021-11-07 12:18:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47274 to 46513. [2021-11-07 12:18:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46513 states, 46131 states have (on average 1.2625349548026272) internal successors, (58242), 46512 states have internal predecessors, (58242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:18:56,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46513 states to 46513 states and 58242 transitions. [2021-11-07 12:18:56,585 INFO L78 Accepts]: Start accepts. Automaton has 46513 states and 58242 transitions. Word has length 15 [2021-11-07 12:18:56,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:18:56,586 INFO L470 AbstractCegarLoop]: Abstraction has 46513 states and 58242 transitions. [2021-11-07 12:18:56,586 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) [2021-11-07 12:18:56,586 INFO L276 IsEmpty]: Start isEmpty. Operand 46513 states and 58242 transitions. [2021-11-07 12:18:56,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 12:18:56,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:18:56,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:18:56,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 12:18:56,588 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 379 more)] === [2021-11-07 12:18:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:18:56,588 INFO L85 PathProgramCache]: Analyzing trace with hash -756135522, now seen corresponding path program 1 times [2021-11-07 12:18:56,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:18:56,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98301536] [2021-11-07 12:18:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:18:56,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:18:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:18:57,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:18:57,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:18:57,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98301536] [2021-11-07 12:18:57,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98301536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:18:57,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:18:57,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:18:57,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788503186] [2021-11-07 12:18:57,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:18:57,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:18:57,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:18:57,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:18:57,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:18:57,334 INFO L87 Difference]: Start difference. First operand 46513 states and 58242 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) [2021-11-07 12:18:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:18:59,033 INFO L93 Difference]: Finished difference Result 139119 states and 174208 transitions. [2021-11-07 12:18:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:18:59,033 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 [2021-11-07 12:18:59,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:18:59,305 INFO L225 Difference]: With dead ends: 139119 [2021-11-07 12:18:59,305 INFO L226 Difference]: Without dead ends: 92609 [2021-11-07 12:18:59,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:18:59,399 INFO L933 BasicCegarLoop]: 29705 mSDtfsCounter, 29180 mSDsluCounter, 29433 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29180 SdHoareTripleChecker+Valid, 59138 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.12ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 243.23ms IncrementalHoareTripleChecker+Time [2021-11-07 12:18:59,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29180 Valid, 59138 Invalid, 11 Unknown, 0 Unchecked, 59.12ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 243.23ms Time] [2021-11-07 12:18:59,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92609 states. [2021-11-07 12:19:01,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92609 to 91848. [2021-11-07 12:19:01,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91848 states, 91466 states have (on average 1.2636498808300352) internal successors, (115581), 91847 states have internal predecessors, (115581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:19:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91848 states to 91848 states and 115581 transitions. [2021-11-07 12:19:01,371 INFO L78 Accepts]: Start accepts. Automaton has 91848 states and 115581 transitions. Word has length 16 [2021-11-07 12:19:01,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:19:01,372 INFO L470 AbstractCegarLoop]: Abstraction has 91848 states and 115581 transitions. [2021-11-07 12:19:01,372 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) [2021-11-07 12:19:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 91848 states and 115581 transitions. [2021-11-07 12:19:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 12:19:01,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:19:01,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:19:01,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 12:19:01,374 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 379 more)] === [2021-11-07 12:19:01,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:19:01,374 INFO L85 PathProgramCache]: Analyzing trace with hash -568723263, now seen corresponding path program 1 times [2021-11-07 12:19:01,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:19:01,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644471875] [2021-11-07 12:19:01,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:19:01,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:19:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:19:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:19:02,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:19:02,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644471875] [2021-11-07 12:19:02,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644471875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:19:02,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:19:02,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:19:02,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768314364] [2021-11-07 12:19:02,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:19:02,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:19:02,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:19:02,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:19:02,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:19:02,039 INFO L87 Difference]: Start difference. First operand 91848 states and 115581 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) [2021-11-07 12:19:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:19:05,036 INFO L93 Difference]: Finished difference Result 274838 states and 345867 transitions. [2021-11-07 12:19:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:19:05,036 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 [2021-11-07 12:19:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:19:05,537 INFO L225 Difference]: With dead ends: 274838 [2021-11-07 12:19:05,538 INFO L226 Difference]: Without dead ends: 182993 [2021-11-07 12:19:05,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:19:05,742 INFO L933 BasicCegarLoop]: 29964 mSDtfsCounter, 29217 mSDsluCounter, 29436 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 202.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29217 SdHoareTripleChecker+Valid, 59400 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.79ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 226.32ms IncrementalHoareTripleChecker+Time [2021-11-07 12:19:05,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29217 Valid, 59400 Invalid, 8 Unknown, 0 Unchecked, 44.79ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 226.32ms Time] [2021-11-07 12:19:05,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182993 states.