./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--amc6821.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--amc6821.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 b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 12:13:19,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 12:13:19,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 12:13:19,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 12:13:19,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 12:13:19,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 12:13:19,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 12:13:19,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 12:13:19,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 12:13:19,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 12:13:19,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 12:13:19,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 12:13:19,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 12:13:19,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 12:13:19,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 12:13:19,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 12:13:19,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 12:13:19,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 12:13:19,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 12:13:19,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 12:13:19,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 12:13:19,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 12:13:19,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 12:13:19,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 12:13:19,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 12:13:19,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 12:13:19,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 12:13:19,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 12:13:19,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 12:13:19,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 12:13:19,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 12:13:19,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 12:13:19,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 12:13:19,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 12:13:19,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 12:13:19,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 12:13:19,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 12:13:19,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 12:13:19,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 12:13:19,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 12:13:19,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 12:13:19,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 12:13:19,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 12:13:19,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 12:13:19,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 12:13:19,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 12:13:19,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 12:13:19,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 12:13:19,915 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 12:13:19,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 12:13:19,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 12:13:19,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 12:13:19,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 12:13:19,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 12:13:19,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 12:13:19,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 12:13:19,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 12:13:19,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 12:13:19,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 12:13:19,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 12:13:19,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 12:13:19,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:13:19,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 12:13:19,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 12:13:19,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 12:13:19,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 12:13:19,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 12:13:19,919 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 12:13:19,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 12:13:19,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 12:13:19,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 12:13:19,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df [2021-11-07 12:13:20,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 12:13:20,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 12:13:20,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 12:13:20,146 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 12:13:20,147 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 12:13:20,148 INFO L432 ainManager$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--amc6821.ko-main.cil.out.i [2021-11-07 12:13:20,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4737f0f01/dfab537d3d0e4ed0acb5d1c75d19b929/FLAG645d6035d [2021-11-07 12:13:20,720 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 12:13:20,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-07 12:13:20,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4737f0f01/dfab537d3d0e4ed0acb5d1c75d19b929/FLAG645d6035d [2021-11-07 12:13:20,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4737f0f01/dfab537d3d0e4ed0acb5d1c75d19b929 [2021-11-07 12:13:20,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 12:13:20,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 12:13:20,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 12:13:20,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 12:13:20,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 12:13:20,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:13:20" (1/1) ... [2021-11-07 12:13:20,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144f7f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:20, skipping insertion in model container [2021-11-07 12:13:20,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:13:20" (1/1) ... [2021-11-07 12:13:20,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 12:13:21,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 12:13:21,741 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--amc6821.ko-main.cil.out.i[139464,139477] [2021-11-07 12:13:21,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:13:21,853 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 12:13:22,018 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--amc6821.ko-main.cil.out.i[139464,139477] [2021-11-07 12:13:22,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:13:22,117 INFO L208 MainTranslator]: Completed translation [2021-11-07 12:13:22,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22 WrapperNode [2021-11-07 12:13:22,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 12:13:22,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 12:13:22,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 12:13:22,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 12:13:22,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:22,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:22,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 12:13:22,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 12:13:22,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 12:13:22,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 12:13:22,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:22,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:22,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:22,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:23,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:23,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:23,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:23,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 12:13:23,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 12:13:23,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 12:13:23,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 12:13:23,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (1/1) ... [2021-11-07 12:13:23,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:13:23,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:13:23,273 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 12:13:23,309 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 12:13:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 12:13:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 12:13:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 12:13:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 12:13:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 12:13:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 12:13:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 12:13:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 12:13:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 12:13:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 12:13:23,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 12:13:40,017 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 12:13:40,017 INFO L299 CfgBuilder]: Removed 2924 assume(true) statements. [2021-11-07 12:13:40,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:13:40 BoogieIcfgContainer [2021-11-07 12:13:40,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 12:13:40,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 12:13:40,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 12:13:40,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 12:13:40,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:13:20" (1/3) ... [2021-11-07 12:13:40,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4c6d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:13:40, skipping insertion in model container [2021-11-07 12:13:40,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:22" (2/3) ... [2021-11-07 12:13:40,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4c6d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:13:40, skipping insertion in model container [2021-11-07 12:13:40,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:13:40" (3/3) ... [2021-11-07 12:13:40,029 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-07 12:13:40,032 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 12:13:40,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 112 error locations. [2021-11-07 12:13:40,084 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 12:13:40,091 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 12:13:40,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2021-11-07 12:13:40,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 3223 states, 3110 states have (on average 1.405144694533762) internal successors, (4370), 3222 states have internal predecessors, (4370), 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 12:13:40,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 12:13:40,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:40,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:40,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 12:13:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1794240842, now seen corresponding path program 1 times [2021-11-07 12:13:40,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:40,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301985373] [2021-11-07 12:13:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:40,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:40,654 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 12:13:40,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:40,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301985373] [2021-11-07 12:13:40,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301985373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:40,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:40,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:40,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071539390] [2021-11-07 12:13:40,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:40,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:40,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:40,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:40,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:40,696 INFO L87 Difference]: Start difference. First operand has 3223 states, 3110 states have (on average 1.405144694533762) internal successors, (4370), 3222 states have internal predecessors, (4370), 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 12:13:41,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:41,037 INFO L93 Difference]: Finished difference Result 9604 states and 13027 transitions. [2021-11-07 12:13:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:41,040 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 12:13:41,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:41,080 INFO L225 Difference]: With dead ends: 9604 [2021-11-07 12:13:41,081 INFO L226 Difference]: Without dead ends: 6376 [2021-11-07 12:13:41,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:41,102 INFO L933 BasicCegarLoop]: 4207 mSDtfsCounter, 4125 mSDsluCounter, 4197 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4125 SdHoareTripleChecker+Valid, 8404 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.60ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 130.87ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:41,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4125 Valid, 8404 Invalid, 8 Unknown, 0 Unchecked, 23.60ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 130.87ms Time] [2021-11-07 12:13:41,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6376 states. [2021-11-07 12:13:41,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6376 to 6151. [2021-11-07 12:13:41,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6151 states, 6039 states have (on average 1.3591654247391953) internal successors, (8208), 6150 states have internal predecessors, (8208), 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 12:13:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6151 states to 6151 states and 8208 transitions. [2021-11-07 12:13:41,293 INFO L78 Accepts]: Start accepts. Automaton has 6151 states and 8208 transitions. Word has length 15 [2021-11-07 12:13:41,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:41,293 INFO L470 AbstractCegarLoop]: Abstraction has 6151 states and 8208 transitions. [2021-11-07 12:13:41,294 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 12:13:41,294 INFO L276 IsEmpty]: Start isEmpty. Operand 6151 states and 8208 transitions. [2021-11-07 12:13:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 12:13:41,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:41,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:41,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 12:13:41,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 12:13:41,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:41,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1247788700, now seen corresponding path program 1 times [2021-11-07 12:13:41,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:41,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403920387] [2021-11-07 12:13:41,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:41,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:41,468 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 12:13:41,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:41,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403920387] [2021-11-07 12:13:41,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403920387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:41,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:41,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:41,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698108291] [2021-11-07 12:13:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:41,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:41,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:41,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:41,475 INFO L87 Difference]: Start difference. First operand 6151 states and 8208 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 12:13:41,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:41,873 INFO L93 Difference]: Finished difference Result 18331 states and 24468 transitions. [2021-11-07 12:13:41,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:41,873 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 12:13:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:41,908 INFO L225 Difference]: With dead ends: 18331 [2021-11-07 12:13:41,908 INFO L226 Difference]: Without dead ends: 12183 [2021-11-07 12:13:41,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:41,922 INFO L933 BasicCegarLoop]: 4278 mSDtfsCounter, 4118 mSDsluCounter, 4193 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 8471 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.77ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.00ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:41,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4118 Valid, 8471 Invalid, 8 Unknown, 0 Unchecked, 10.77ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 113.00ms Time] [2021-11-07 12:13:41,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12183 states. [2021-11-07 12:13:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12183 to 11958. [2021-11-07 12:13:42,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11958 states, 11846 states have (on average 1.3627384771230795) internal successors, (16143), 11957 states have internal predecessors, (16143), 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 12:13:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11958 states to 11958 states and 16143 transitions. [2021-11-07 12:13:42,158 INFO L78 Accepts]: Start accepts. Automaton has 11958 states and 16143 transitions. Word has length 16 [2021-11-07 12:13:42,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:42,158 INFO L470 AbstractCegarLoop]: Abstraction has 11958 states and 16143 transitions. [2021-11-07 12:13:42,159 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 12:13:42,159 INFO L276 IsEmpty]: Start isEmpty. Operand 11958 states and 16143 transitions. [2021-11-07 12:13:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 12:13:42,164 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:42,164 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 12:13:42,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 12:13:42,165 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 12:13:42,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:42,167 INFO L85 PathProgramCache]: Analyzing trace with hash -348717799, now seen corresponding path program 1 times [2021-11-07 12:13:42,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:42,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751953866] [2021-11-07 12:13:42,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:42,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:42,324 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 12:13:42,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:42,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751953866] [2021-11-07 12:13:42,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751953866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:42,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:42,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:42,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54115061] [2021-11-07 12:13:42,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:42,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:42,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:42,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:42,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:42,327 INFO L87 Difference]: Start difference. First operand 11958 states and 16143 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 12:13:42,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:42,657 INFO L93 Difference]: Finished difference Result 35644 states and 48133 transitions. [2021-11-07 12:13:42,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:42,658 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 12:13:42,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:42,726 INFO L225 Difference]: With dead ends: 35644 [2021-11-07 12:13:42,726 INFO L226 Difference]: Without dead ends: 23689 [2021-11-07 12:13:42,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:42,755 INFO L933 BasicCegarLoop]: 4355 mSDtfsCounter, 4119 mSDsluCounter, 4193 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4119 SdHoareTripleChecker+Valid, 8548 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.52ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.29ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:42,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4119 Valid, 8548 Invalid, 8 Unknown, 0 Unchecked, 8.52ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 78.29ms Time] [2021-11-07 12:13:42,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23689 states. [2021-11-07 12:13:43,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23689 to 23464. [2021-11-07 12:13:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23464 states, 23352 states have (on average 1.3648081534772183) internal successors, (31871), 23463 states have internal predecessors, (31871), 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 12:13:43,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23464 states to 23464 states and 31871 transitions. [2021-11-07 12:13:43,287 INFO L78 Accepts]: Start accepts. Automaton has 23464 states and 31871 transitions. Word has length 17 [2021-11-07 12:13:43,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:43,287 INFO L470 AbstractCegarLoop]: Abstraction has 23464 states and 31871 transitions. [2021-11-07 12:13:43,288 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) [2021-11-07 12:13:43,288 INFO L276 IsEmpty]: Start isEmpty. Operand 23464 states and 31871 transitions. [2021-11-07 12:13:43,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 12:13:43,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:43,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:43,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 12:13:43,289 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 12:13:43,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:43,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1185636838, now seen corresponding path program 1 times [2021-11-07 12:13:43,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:43,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749558223] [2021-11-07 12:13:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:43,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:43,421 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 12:13:43,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:43,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749558223] [2021-11-07 12:13:43,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749558223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:43,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:43,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:43,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010048550] [2021-11-07 12:13:43,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:43,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:43,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:43,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:43,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:43,424 INFO L87 Difference]: Start difference. First operand 23464 states and 31871 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 12:13:44,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:44,077 INFO L93 Difference]: Finished difference Result 69846 states and 94861 transitions. [2021-11-07 12:13:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:44,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-07 12:13:44,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:44,178 INFO L225 Difference]: With dead ends: 69846 [2021-11-07 12:13:44,179 INFO L226 Difference]: Without dead ends: 46385 [2021-11-07 12:13:44,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:44,219 INFO L933 BasicCegarLoop]: 4430 mSDtfsCounter, 4097 mSDsluCounter, 4193 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 8623 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.93ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.09ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:44,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4097 Valid, 8623 Invalid, 8 Unknown, 0 Unchecked, 23.93ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 72.09ms Time] [2021-11-07 12:13:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46385 states. [2021-11-07 12:13:45,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46385 to 46160. [2021-11-07 12:13:45,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46160 states, 46048 states have (on average 1.3652493050729673) internal successors, (62867), 46159 states have internal predecessors, (62867), 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 12:13:45,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46160 states to 46160 states and 62867 transitions. [2021-11-07 12:13:45,385 INFO L78 Accepts]: Start accepts. Automaton has 46160 states and 62867 transitions. Word has length 18 [2021-11-07 12:13:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:45,386 INFO L470 AbstractCegarLoop]: Abstraction has 46160 states and 62867 transitions. [2021-11-07 12:13:45,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 12:13:45,386 INFO L276 IsEmpty]: Start isEmpty. Operand 46160 states and 62867 transitions. [2021-11-07 12:13:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 12:13:45,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:45,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:45,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 12:13:45,387 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 12:13:45,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash -563917397, now seen corresponding path program 1 times [2021-11-07 12:13:45,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:45,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324311325] [2021-11-07 12:13:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:45,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:45,699 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 12:13:45,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:45,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324311325] [2021-11-07 12:13:45,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324311325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:45,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:45,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:45,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636094136] [2021-11-07 12:13:45,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:45,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:45,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:45,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:45,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:45,701 INFO L87 Difference]: Start difference. First operand 46160 states and 62867 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 12:13:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:47,285 INFO L93 Difference]: Finished difference Result 137574 states and 187409 transitions. [2021-11-07 12:13:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:47,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-07 12:13:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:47,551 INFO L225 Difference]: With dead ends: 137574 [2021-11-07 12:13:47,552 INFO L226 Difference]: Without dead ends: 91417 [2021-11-07 12:13:47,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:47,645 INFO L933 BasicCegarLoop]: 4526 mSDtfsCounter, 4115 mSDsluCounter, 4193 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4115 SdHoareTripleChecker+Valid, 8719 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.09ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.75ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:47,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4115 Valid, 8719 Invalid, 8 Unknown, 0 Unchecked, 10.09ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 60.75ms Time] [2021-11-07 12:13:47,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91417 states. [2021-11-07 12:13:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91417 to 91192. [2021-11-07 12:13:49,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91192 states, 91080 states have (on average 1.3659530083443128) internal successors, (124411), 91191 states have internal predecessors, (124411), 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 12:13:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91192 states to 91192 states and 124411 transitions. [2021-11-07 12:13:49,700 INFO L78 Accepts]: Start accepts. Automaton has 91192 states and 124411 transitions. Word has length 19 [2021-11-07 12:13:49,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:49,700 INFO L470 AbstractCegarLoop]: Abstraction has 91192 states and 124411 transitions. [2021-11-07 12:13:49,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 12:13:49,701 INFO L276 IsEmpty]: Start isEmpty. Operand 91192 states and 124411 transitions. [2021-11-07 12:13:49,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 12:13:49,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:49,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:49,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 12:13:49,703 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 12:13:49,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:49,704 INFO L85 PathProgramCache]: Analyzing trace with hash -677031331, now seen corresponding path program 1 times [2021-11-07 12:13:49,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:49,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362405848] [2021-11-07 12:13:49,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:49,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:49,840 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 12:13:49,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:49,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362405848] [2021-11-07 12:13:49,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362405848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:49,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:49,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:49,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981986181] [2021-11-07 12:13:49,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:49,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:49,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:49,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:49,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:49,843 INFO L87 Difference]: Start difference. First operand 91192 states and 124411 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 12:13:52,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:52,711 INFO L93 Difference]: Finished difference Result 268086 states and 365637 transitions. [2021-11-07 12:13:52,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:52,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-07 12:13:52,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:53,148 INFO L225 Difference]: With dead ends: 268086 [2021-11-07 12:13:53,149 INFO L226 Difference]: Without dead ends: 176897 [2021-11-07 12:13:53,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:53,346 INFO L933 BasicCegarLoop]: 4603 mSDtfsCounter, 3947 mSDsluCounter, 4190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 8793 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.57ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.04ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:53,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3947 Valid, 8793 Invalid, 11 Unknown, 0 Unchecked, 8.57ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 99.04ms Time] [2021-11-07 12:13:53,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176897 states. [2021-11-07 12:13:56,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176897 to 176680. [2021-11-07 12:13:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176680 states, 176568 states have (on average 1.3653833084137557) internal successors, (241083), 176679 states have internal predecessors, (241083), 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 12:13:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176680 states to 176680 states and 241083 transitions. [2021-11-07 12:13:57,333 INFO L78 Accepts]: Start accepts. Automaton has 176680 states and 241083 transitions. Word has length 20 [2021-11-07 12:13:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:57,333 INFO L470 AbstractCegarLoop]: Abstraction has 176680 states and 241083 transitions. [2021-11-07 12:13:57,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 12:13:57,333 INFO L276 IsEmpty]: Start isEmpty. Operand 176680 states and 241083 transitions. [2021-11-07 12:13:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 12:13:57,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:57,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:57,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 12:13:57,334 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 12:13:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1299924542, now seen corresponding path program 1 times [2021-11-07 12:13:57,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:57,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032503364] [2021-11-07 12:13:57,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:57,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:57,488 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 12:13:57,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:57,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032503364] [2021-11-07 12:13:57,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032503364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:57,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:57,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:57,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703187178] [2021-11-07 12:13:57,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:57,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:57,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:57,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:57,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:57,491 INFO L87 Difference]: Start difference. First operand 176680 states and 241083 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 12:14:03,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:14:03,479 INFO L93 Difference]: Finished difference Result 519078 states and 708069 transitions. [2021-11-07 12:14:03,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:14:03,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-07 12:14:03,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:14:04,464 INFO L225 Difference]: With dead ends: 519078 [2021-11-07 12:14:04,465 INFO L226 Difference]: Without dead ends: 342401 [2021-11-07 12:14:04,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:14:04,702 INFO L933 BasicCegarLoop]: 4847 mSDtfsCounter, 3946 mSDsluCounter, 4190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3946 SdHoareTripleChecker+Valid, 9037 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.84ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.10ms IncrementalHoareTripleChecker+Time [2021-11-07 12:14:04,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3946 Valid, 9037 Invalid, 11 Unknown, 0 Unchecked, 7.84ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 84.10ms Time] [2021-11-07 12:14:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342401 states. [2021-11-07 12:14:11,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342401 to 342184. [2021-11-07 12:14:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342184 states, 342072 states have (on average 1.3646571482027177) internal successors, (466811), 342183 states have internal predecessors, (466811), 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 12:14:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342184 states to 342184 states and 466811 transitions. [2021-11-07 12:14:13,139 INFO L78 Accepts]: Start accepts. Automaton has 342184 states and 466811 transitions. Word has length 21 [2021-11-07 12:14:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:14:13,140 INFO L470 AbstractCegarLoop]: Abstraction has 342184 states and 466811 transitions. [2021-11-07 12:14:13,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 12:14:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 342184 states and 466811 transitions. [2021-11-07 12:14:13,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 12:14:13,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:14:13,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:14:13,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 12:14:13,142 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 12:14:13,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:14:13,142 INFO L85 PathProgramCache]: Analyzing trace with hash 865222996, now seen corresponding path program 1 times [2021-11-07 12:14:13,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:14:13,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580340493] [2021-11-07 12:14:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:14:13,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:14:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:14:13,334 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 12:14:13,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:14:13,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580340493] [2021-11-07 12:14:13,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580340493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:14:13,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:14:13,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:14:13,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721637577] [2021-11-07 12:14:13,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:14:13,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:14:13,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:14:13,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:14:13,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:14:13,336 INFO L87 Difference]: Start difference. First operand 342184 states and 466811 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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)