./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 22:16:17,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:16:17,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:16:17,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:16:17,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:16:17,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:16:17,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:16:17,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:16:17,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:16:17,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:16:17,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:16:17,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:16:17,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:16:17,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:16:17,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:16:17,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:16:17,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:16:17,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:16:17,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:16:17,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:16:17,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:16:17,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:16:17,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:16:17,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:16:17,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:16:17,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:16:17,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:16:17,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:16:17,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:16:17,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:16:17,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:16:17,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:16:17,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:16:17,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:16:17,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:16:17,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:16:17,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:16:17,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:16:17,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:16:17,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:16:17,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:16:17,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 22:16:17,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:16:17,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:16:17,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:16:17,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:16:17,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:16:17,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:16:17,173 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:16:17,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:16:17,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:16:17,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:16:17,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:16:17,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:16:17,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:16:17,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:16:17,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:16:17,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:16:17,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:16:17,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:16:17,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:16:17,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:16:17,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:16:17,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:16:17,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:16:17,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:16:17,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:16:17,177 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:16:17,177 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:16:17,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:16:17,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:16:17,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 [2021-11-02 22:16:17,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:16:17,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:16:17,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:16:17,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:16:17,452 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:16:17,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-11-02 22:16:17,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45eab824/9a6d46b0f6da43fbbd1d2b6f4b8cbbaf/FLAG2d1b12870 [2021-11-02 22:16:18,284 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:16:18,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-11-02 22:16:18,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45eab824/9a6d46b0f6da43fbbd1d2b6f4b8cbbaf/FLAG2d1b12870 [2021-11-02 22:16:18,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45eab824/9a6d46b0f6da43fbbd1d2b6f4b8cbbaf [2021-11-02 22:16:18,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:16:18,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:16:18,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:16:18,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:16:18,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:16:18,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:16:18" (1/1) ... [2021-11-02 22:16:18,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc0f48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:18, skipping insertion in model container [2021-11-02 22:16:18,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:16:18" (1/1) ... [2021-11-02 22:16:18,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:16:18,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:16:20,670 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2021-11-02 22:16:20,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:16:20,776 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:16:21,118 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2021-11-02 22:16:21,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:16:21,261 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:16:21,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21 WrapperNode [2021-11-02 22:16:21,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:16:21,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:16:21,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:16:21,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:16:21,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:21,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:24,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:16:24,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:16:24,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:16:24,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:16:24,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:24,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:25,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:25,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:25,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:25,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:26,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:26,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:16:26,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:16:26,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:16:26,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:16:26,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (1/1) ... [2021-11-02 22:16:26,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:16:26,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 22:16:26,315 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) [2021-11-02 22:16:26,325 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 [2021-11-02 22:16:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 22:16:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 22:16:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:16:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:16:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:16:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:16:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 22:16:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 22:16:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:16:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:16:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:16:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:16:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:16:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:16:26,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:16:32,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:16:32,744 INFO L299 CfgBuilder]: Removed 18962 assume(true) statements. [2021-11-02 22:16:32,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:16:32 BoogieIcfgContainer [2021-11-02 22:16:32,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:16:32,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:16:32,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:16:32,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:16:32,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:16:18" (1/3) ... [2021-11-02 22:16:32,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518cf7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:16:32, skipping insertion in model container [2021-11-02 22:16:32,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:21" (2/3) ... [2021-11-02 22:16:32,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518cf7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:16:32, skipping insertion in model container [2021-11-02 22:16:32,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:16:32" (3/3) ... [2021-11-02 22:16:32,769 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-11-02 22:16:32,774 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:16:32,774 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-02 22:16:32,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:16:32,859 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 [2021-11-02 22:16:32,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-02 22:16:33,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 11512 states, 11492 states have (on average 1.1874347372084928) internal successors, (13646), 11511 states have internal predecessors, (13646), 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) [2021-11-02 22:16:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-02 22:16:33,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:16:33,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:16:33,043 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-02 22:16:33,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1102701063, now seen corresponding path program 1 times [2021-11-02 22:16:33,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:33,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276426707] [2021-11-02 22:16:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:33,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:16:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:16:33,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:16:33,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276426707] [2021-11-02 22:16:33,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276426707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:16:33,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:16:33,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:16:33,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552004638] [2021-11-02 22:16:33,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:16:33,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:16:33,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:16:33,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:16:33,667 INFO L87 Difference]: Start difference. First operand has 11512 states, 11492 states have (on average 1.1874347372084928) internal successors, (13646), 11511 states have internal predecessors, (13646), 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 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2021-11-02 22:16:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:16:50,360 INFO L93 Difference]: Finished difference Result 23020 states and 27287 transitions. [2021-11-02 22:16:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:16:50,362 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 52 [2021-11-02 22:16:50,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:16:50,430 INFO L225 Difference]: With dead ends: 23020 [2021-11-02 22:16:50,431 INFO L226 Difference]: Without dead ends: 11447 [2021-11-02 22:16:50,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:16:50,464 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13539 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13190.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.19ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15847.85ms IncrementalHoareTripleChecker+Time [2021-11-02 22:16:50,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 13539 Unknown, 0 Unchecked, 34.19ms Time], IncrementalHoareTripleChecker [0 Valid, 13539 Invalid, 0 Unknown, 0 Unchecked, 15847.85ms Time] [2021-11-02 22:16:50,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11447 states. [2021-11-02 22:16:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11447 to 11447. [2021-11-02 22:16:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11447 states, 11428 states have (on average 1.1788589429471474) internal successors, (13472), 11446 states have internal predecessors, (13472), 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) [2021-11-02 22:16:50,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11447 states to 11447 states and 13472 transitions. [2021-11-02 22:16:50,884 INFO L78 Accepts]: Start accepts. Automaton has 11447 states and 13472 transitions. Word has length 52 [2021-11-02 22:16:50,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:16:50,885 INFO L470 AbstractCegarLoop]: Abstraction has 11447 states and 13472 transitions. [2021-11-02 22:16:50,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2021-11-02 22:16:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 11447 states and 13472 transitions. [2021-11-02 22:16:50,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-02 22:16:50,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:16:50,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:16:50,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:16:50,892 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-02 22:16:50,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:50,894 INFO L85 PathProgramCache]: Analyzing trace with hash 858444801, now seen corresponding path program 1 times [2021-11-02 22:16:50,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:50,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187709794] [2021-11-02 22:16:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:50,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:16:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:16:51,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:16:51,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187709794] [2021-11-02 22:16:51,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187709794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:16:51,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:16:51,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:16:51,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829214881] [2021-11-02 22:16:51,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:16:51,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:16:51,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:16:51,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:16:51,121 INFO L87 Difference]: Start difference. First operand 11447 states and 13472 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-02 22:17:15,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:17:15,491 INFO L93 Difference]: Finished difference Result 22876 states and 26927 transitions. [2021-11-02 22:17:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:17:15,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2021-11-02 22:17:15,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:17:15,541 INFO L225 Difference]: With dead ends: 22876 [2021-11-02 22:17:15,542 INFO L226 Difference]: Without dead ends: 11449 [2021-11-02 22:17:15,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:17:15,559 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 13442 mSDsCounter, 0 mSdLazyCounter, 26942 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20262.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 82.46ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23493.99ms IncrementalHoareTripleChecker+Time [2021-11-02 22:17:15,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26944 Unknown, 0 Unchecked, 82.46ms Time], IncrementalHoareTripleChecker [2 Valid, 26942 Invalid, 0 Unknown, 0 Unchecked, 23493.99ms Time] [2021-11-02 22:17:15,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2021-11-02 22:17:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 11449. [2021-11-02 22:17:15,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11449 states, 11430 states have (on average 1.178827646544182) internal successors, (13474), 11448 states have internal predecessors, (13474), 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) [2021-11-02 22:17:15,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11449 states to 11449 states and 13474 transitions. [2021-11-02 22:17:15,915 INFO L78 Accepts]: Start accepts. Automaton has 11449 states and 13474 transitions. Word has length 52 [2021-11-02 22:17:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:17:15,916 INFO L470 AbstractCegarLoop]: Abstraction has 11449 states and 13474 transitions. [2021-11-02 22:17:15,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-02 22:17:15,916 INFO L276 IsEmpty]: Start isEmpty. Operand 11449 states and 13474 transitions. [2021-11-02 22:17:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-02 22:17:15,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:17:15,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:17:15,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:17:15,926 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-02 22:17:15,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:17:15,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1084325571, now seen corresponding path program 1 times [2021-11-02 22:17:15,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:17:15,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819049923] [2021-11-02 22:17:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:17:15,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:17:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:17:16,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:17:16,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:17:16,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819049923] [2021-11-02 22:17:16,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819049923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:17:16,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:17:16,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:17:16,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606546513] [2021-11-02 22:17:16,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:17:16,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:17:16,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:17:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:17:16,215 INFO L87 Difference]: Start difference. First operand 11449 states and 13474 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-11-02 22:18:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:18:15,929 INFO L93 Difference]: Finished difference Result 55069 states and 64515 transitions. [2021-11-02 22:18:15,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:18:15,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2021-11-02 22:18:15,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:18:16,070 INFO L225 Difference]: With dead ends: 55069 [2021-11-02 22:18:16,070 INFO L226 Difference]: Without dead ends: 43647 [2021-11-02 22:18:16,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.07ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:18:16,112 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 25377 mSDsluCounter, 28709 mSDsCounter, 0 mSdLazyCounter, 66651 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48911.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25377 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 66662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 146.51ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57127.50ms IncrementalHoareTripleChecker+Time [2021-11-02 22:18:16,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25377 Valid, 0 Invalid, 66662 Unknown, 0 Unchecked, 146.51ms Time], IncrementalHoareTripleChecker [11 Valid, 66651 Invalid, 0 Unknown, 0 Unchecked, 57127.50ms Time] [2021-11-02 22:18:16,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43647 states. [2021-11-02 22:18:16,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43647 to 21923. [2021-11-02 22:18:16,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21923 states, 21904 states have (on average 1.1724342585829073) internal successors, (25681), 21922 states have internal predecessors, (25681), 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) [2021-11-02 22:18:17,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21923 states to 21923 states and 25681 transitions. [2021-11-02 22:18:17,019 INFO L78 Accepts]: Start accepts. Automaton has 21923 states and 25681 transitions. Word has length 54 [2021-11-02 22:18:17,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:18:17,022 INFO L470 AbstractCegarLoop]: Abstraction has 21923 states and 25681 transitions. [2021-11-02 22:18:17,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-11-02 22:18:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand 21923 states and 25681 transitions. [2021-11-02 22:18:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-02 22:18:17,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:18:17,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:18:17,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:18:17,031 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-02 22:18:17,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:18:17,032 INFO L85 PathProgramCache]: Analyzing trace with hash -524137007, now seen corresponding path program 1 times [2021-11-02 22:18:17,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:18:17,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265016142] [2021-11-02 22:18:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:18:17,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:18:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:18:17,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:18:17,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:18:17,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265016142] [2021-11-02 22:18:17,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265016142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:18:17,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:18:17,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:18:17,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637818513] [2021-11-02 22:18:17,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:18:17,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:18:17,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:18:17,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:18:17,242 INFO L87 Difference]: Start difference. First operand 21923 states and 25681 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-11-02 22:19:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:19:09,572 INFO L93 Difference]: Finished difference Result 107439 states and 125552 transitions. [2021-11-02 22:19:09,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:19:09,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2021-11-02 22:19:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:19:09,852 INFO L225 Difference]: With dead ends: 107439 [2021-11-02 22:19:09,853 INFO L226 Difference]: Without dead ends: 85543 [2021-11-02 22:19:09,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.39ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:19:09,939 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 37591 mSDsluCounter, 26878 mSDsCounter, 0 mSdLazyCounter, 52603 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42001.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37591 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 158.09ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49065.77ms IncrementalHoareTripleChecker+Time [2021-11-02 22:19:09,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37591 Valid, 0 Invalid, 52616 Unknown, 0 Unchecked, 158.09ms Time], IncrementalHoareTripleChecker [13 Valid, 52603 Invalid, 0 Unknown, 0 Unchecked, 49065.77ms Time] [2021-11-02 22:19:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85543 states. [2021-11-02 22:19:11,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85543 to 43555. [2021-11-02 22:19:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43555 states, 43536 states have (on average 1.1716051084160235) internal successors, (51007), 43554 states have internal predecessors, (51007), 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) [2021-11-02 22:19:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43555 states to 43555 states and 51007 transitions. [2021-11-02 22:19:11,482 INFO L78 Accepts]: Start accepts. Automaton has 43555 states and 51007 transitions. Word has length 55 [2021-11-02 22:19:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:19:11,484 INFO L470 AbstractCegarLoop]: Abstraction has 43555 states and 51007 transitions. [2021-11-02 22:19:11,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-11-02 22:19:11,485 INFO L276 IsEmpty]: Start isEmpty. Operand 43555 states and 51007 transitions. [2021-11-02 22:19:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-02 22:19:11,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:19:11,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:19:11,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:19:11,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-02 22:19:11,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:19:11,496 INFO L85 PathProgramCache]: Analyzing trace with hash 845093836, now seen corresponding path program 1 times [2021-11-02 22:19:11,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:19:11,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681772395] [2021-11-02 22:19:11,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:19:11,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:19:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:19:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:19:11,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:19:11,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681772395] [2021-11-02 22:19:11,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681772395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:19:11,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:19:11,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:19:11,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745323423] [2021-11-02 22:19:11,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:19:11,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:19:11,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:19:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:19:11,688 INFO L87 Difference]: Start difference. First operand 43555 states and 51007 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-02 22:19:13,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:20:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:20:08,143 INFO L93 Difference]: Finished difference Result 214017 states and 250071 transitions. [2021-11-02 22:20:08,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:20:08,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2021-11-02 22:20:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:20:08,528 INFO L225 Difference]: With dead ends: 214017 [2021-11-02 22:20:08,528 INFO L226 Difference]: Without dead ends: 170489 [2021-11-02 22:20:08,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:20:08,633 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 37597 mSDsluCounter, 26878 mSDsCounter, 0 mSdLazyCounter, 52602 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44244.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37597 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 158.95ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51425.23ms IncrementalHoareTripleChecker+Time [2021-11-02 22:20:08,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37597 Valid, 0 Invalid, 52615 Unknown, 0 Unchecked, 158.95ms Time], IncrementalHoareTripleChecker [13 Valid, 52602 Invalid, 0 Unknown, 0 Unchecked, 51425.23ms Time] [2021-11-02 22:20:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170489 states. [2021-11-02 22:20:11,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170489 to 86596. [2021-11-02 22:20:11,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86596 states, 86577 states have (on average 1.17073818681636) internal successors, (101359), 86595 states have internal predecessors, (101359), 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) [2021-11-02 22:20:11,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86596 states to 86596 states and 101359 transitions. [2021-11-02 22:20:11,541 INFO L78 Accepts]: Start accepts. Automaton has 86596 states and 101359 transitions. Word has length 56 [2021-11-02 22:20:11,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:20:11,541 INFO L470 AbstractCegarLoop]: Abstraction has 86596 states and 101359 transitions. [2021-11-02 22:20:11,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-02 22:20:11,542 INFO L276 IsEmpty]: Start isEmpty. Operand 86596 states and 101359 transitions. [2021-11-02 22:20:11,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-02 22:20:11,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:20:11,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:20:11,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 22:20:11,549 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-02 22:20:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:20:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1042642364, now seen corresponding path program 1 times [2021-11-02 22:20:11,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:20:11,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038141209] [2021-11-02 22:20:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:20:11,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:20:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:20:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:20:11,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:20:11,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038141209] [2021-11-02 22:20:11,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038141209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:20:11,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:20:11,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:20:11,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942009787] [2021-11-02 22:20:11,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:20:11,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:20:11,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:20:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:20:11,688 INFO L87 Difference]: Start difference. First operand 86596 states and 101359 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-02 22:21:09,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:09,221 INFO L93 Difference]: Finished difference Result 426500 states and 498201 transitions. [2021-11-02 22:21:09,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:21:09,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-02 22:21:09,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:10,417 INFO L225 Difference]: With dead ends: 426500 [2021-11-02 22:21:10,417 INFO L226 Difference]: Without dead ends: 339931 [2021-11-02 22:21:10,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.28ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:21:10,688 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 37603 mSDsluCounter, 26878 mSDsCounter, 0 mSdLazyCounter, 52601 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40744.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37603 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.50ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47843.22ms IncrementalHoareTripleChecker+Time [2021-11-02 22:21:10,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37603 Valid, 0 Invalid, 52614 Unknown, 0 Unchecked, 130.50ms Time], IncrementalHoareTripleChecker [13 Valid, 52601 Invalid, 0 Unknown, 0 Unchecked, 47843.22ms Time] [2021-11-02 22:21:11,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339931 states. [2021-11-02 22:21:17,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339931 to 172231. [2021-11-02 22:21:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172231 states, 172212 states have (on average 1.1698429842287412) internal successors, (201461), 172230 states have internal predecessors, (201461), 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) [2021-11-02 22:21:18,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172231 states to 172231 states and 201461 transitions. [2021-11-02 22:21:18,117 INFO L78 Accepts]: Start accepts. Automaton has 172231 states and 201461 transitions. Word has length 57 [2021-11-02 22:21:18,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:21:18,118 INFO L470 AbstractCegarLoop]: Abstraction has 172231 states and 201461 transitions. [2021-11-02 22:21:18,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-02 22:21:18,118 INFO L276 IsEmpty]: Start isEmpty. Operand 172231 states and 201461 transitions. [2021-11-02 22:21:18,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-02 22:21:18,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:21:18,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:18,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:21:18,123 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-02 22:21:18,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:18,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1045475562, now seen corresponding path program 1 times [2021-11-02 22:21:18,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:18,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894414016] [2021-11-02 22:21:18,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:18,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:21:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:21:18,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:18,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894414016] [2021-11-02 22:21:18,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894414016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:21:18,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:21:18,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:21:18,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195090836] [2021-11-02 22:21:18,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:21:18,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:18,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:21:18,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:21:18,300 INFO L87 Difference]: Start difference. First operand 172231 states and 201461 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-02 22:21:55,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:55,353 INFO L93 Difference]: Finished difference Result 473779 states and 552513 transitions. [2021-11-02 22:21:55,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:21:55,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-02 22:21:55,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:56,273 INFO L225 Difference]: With dead ends: 473779 [2021-11-02 22:21:56,274 INFO L226 Difference]: Without dead ends: 301575 [2021-11-02 22:21:56,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.91ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:21:56,627 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10257 mSDsluCounter, 13323 mSDsCounter, 0 mSdLazyCounter, 27760 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23336.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10257 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.71ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 27760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27400.27ms IncrementalHoareTripleChecker+Time [2021-11-02 22:21:56,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10257 Valid, 0 Invalid, 27776 Unknown, 0 Unchecked, 43.71ms Time], IncrementalHoareTripleChecker [16 Valid, 27760 Invalid, 0 Unknown, 0 Unchecked, 27400.27ms Time] [2021-11-02 22:21:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301575 states.