./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--atheros--atlx--atl1.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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--atheros--atlx--atl1.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 7e20a2a63b20681973e7da2f472e7774f2d8f807c6228dba0d1eb9a52abaa4b7 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:04:30,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:04:30,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:04:31,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:04:31,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:04:31,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:04:31,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:04:31,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:04:31,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:04:31,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:04:31,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:04:31,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:04:31,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:04:31,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:04:31,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:04:31,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:04:31,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:04:31,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:04:31,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:04:31,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:04:31,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:04:31,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:04:31,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:04:31,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:04:31,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:04:31,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:04:31,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:04:31,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:04:31,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:04:31,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:04:31,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:04:31,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:04:31,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:04:31,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:04:31,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:04:31,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:04:31,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:04:31,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:04:31,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:04:31,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:04:31,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:04:31,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:04:31,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:04:31,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:04:31,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:04:31,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:04:31,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:04:31,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:04:31,104 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:04:31,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:04:31,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:04:31,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:04:31,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:04:31,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:04:31,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:04:31,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:04:31,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:04:31,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:04:31,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:04:31,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:04:31,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:04:31,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:04:31,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:04:31,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:04:31,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:04:31,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:04:31,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:04:31,112 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:04:31,113 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:04:31,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:04:31,113 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:04:31,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e20a2a63b20681973e7da2f472e7774f2d8f807c6228dba0d1eb9a52abaa4b7 [2021-11-05 19:04:31,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:04:31,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:04:31,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:04:31,386 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:04:31,387 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:04:31,388 INFO L432 ainManager$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--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-05 19:04:31,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f679c3e8c/a5d5ff9be50144d78f41f4e2050b5a95/FLAG75babef64 [2021-11-05 19:04:32,109 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:04:32,110 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--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-05 19:04:32,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f679c3e8c/a5d5ff9be50144d78f41f4e2050b5a95/FLAG75babef64 [2021-11-05 19:04:32,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f679c3e8c/a5d5ff9be50144d78f41f4e2050b5a95 [2021-11-05 19:04:32,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:04:32,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:04:32,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:04:32,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:04:32,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:04:32,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:04:32" (1/1) ... [2021-11-05 19:04:32,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f4d45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:32, skipping insertion in model container [2021-11-05 19:04:32,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:04:32" (1/1) ... [2021-11-05 19:04:32,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:04:32,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:04:34,173 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--atheros--atlx--atl1.ko-entry_point.cil.out.i[401891,401904] [2021-11-05 19:04:34,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:04:34,270 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:04:34,606 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--atheros--atlx--atl1.ko-entry_point.cil.out.i[401891,401904] [2021-11-05 19:04:34,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:04:34,806 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:04:34,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34 WrapperNode [2021-11-05 19:04:34,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:04:34,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:04:34,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:04:34,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:04:34,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:34,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:36,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:04:36,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:04:36,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:04:36,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:04:36,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:36,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:36,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:36,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:37,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:37,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:37,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:38,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:04:38,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:04:38,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:04:38,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:04:38,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (1/1) ... [2021-11-05 19:04:38,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:04:38,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:04:38,266 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) [2021-11-05 19:04:38,288 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 [2021-11-05 19:04:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:04:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:04:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:04:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:04:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:04:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:04:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:04:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:04:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:04:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:04:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:04:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:04:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:04:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:04:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:17:42,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:17:42,736 INFO L299 CfgBuilder]: Removed 10732 assume(true) statements. [2021-11-05 19:17:42,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:17:42 BoogieIcfgContainer [2021-11-05 19:17:42,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:17:42,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:17:42,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:17:42,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:17:42,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:04:32" (1/3) ... [2021-11-05 19:17:42,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f52e7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:17:42, skipping insertion in model container [2021-11-05 19:17:42,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:04:34" (2/3) ... [2021-11-05 19:17:42,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f52e7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:17:42, skipping insertion in model container [2021-11-05 19:17:42,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:17:42" (3/3) ... [2021-11-05 19:17:42,752 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-05 19:17:42,756 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:17:42,756 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-05 19:17:42,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:17:42,819 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 [2021-11-05 19:17:42,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-05 19:17:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 12917 states, 12899 states have (on average 1.407473447554074) internal successors, (18155), 12916 states have internal predecessors, (18155), 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) [2021-11-05 19:17:42,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 19:17:42,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:17:42,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:17:42,961 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-05 19:17:42,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:17:42,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1858011625, now seen corresponding path program 1 times [2021-11-05 19:17:42,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:17:42,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924394542] [2021-11-05 19:17:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:17:42,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:17:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:17:43,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:17:43,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:17:43,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924394542] [2021-11-05 19:17:43,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924394542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:17:43,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:17:43,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:17:43,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456084332] [2021-11-05 19:17:43,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:17:43,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 19:17:43,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:17:43,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 19:17:43,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:17:43,950 INFO L87 Difference]: Start difference. First operand has 12917 states, 12899 states have (on average 1.407473447554074) internal successors, (18155), 12916 states have internal predecessors, (18155), 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 42.5) internal successors, (85), 2 states have internal predecessors, (85), 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) [2021-11-05 19:17:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:17:44,277 INFO L93 Difference]: Finished difference Result 25830 states and 36305 transitions. [2021-11-05 19:17:44,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:17:44,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 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 85 [2021-11-05 19:17:44,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:17:44,336 INFO L225 Difference]: With dead ends: 25830 [2021-11-05 19:17:44,337 INFO L226 Difference]: Without dead ends: 12817 [2021-11-05 19:17:44,365 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 [2021-11-05 19:17:44,368 INFO L933 BasicCegarLoop]: 18100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:17:44,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18100 Invalid, 0 Unknown, 0 Unchecked, 40.52ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:17:44,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12817 states. [2021-11-05 19:17:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12817 to 12817. [2021-11-05 19:17:44,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12817 states, 12800 states have (on average 1.398828125) internal successors, (17905), 12816 states have internal predecessors, (17905), 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) [2021-11-05 19:17:44,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12817 states to 12817 states and 17905 transitions. [2021-11-05 19:17:44,675 INFO L78 Accepts]: Start accepts. Automaton has 12817 states and 17905 transitions. Word has length 85 [2021-11-05 19:17:44,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:17:44,676 INFO L470 AbstractCegarLoop]: Abstraction has 12817 states and 17905 transitions. [2021-11-05 19:17:44,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 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) [2021-11-05 19:17:44,676 INFO L276 IsEmpty]: Start isEmpty. Operand 12817 states and 17905 transitions. [2021-11-05 19:17:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 19:17:44,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:17:44,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:17:44,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:17:44,681 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-05 19:17:44,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:17:44,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1554546695, now seen corresponding path program 1 times [2021-11-05 19:17:44,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:17:44,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183379413] [2021-11-05 19:17:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:17:44,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:17:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:17:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:17:45,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:17:45,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183379413] [2021-11-05 19:17:45,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183379413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:17:45,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:17:45,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:17:45,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714542776] [2021-11-05 19:17:45,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:17:45,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:17:45,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:17:45,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:17:45,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:17:45,316 INFO L87 Difference]: Start difference. First operand 12817 states and 17905 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-05 19:17:46,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:17:46,519 INFO L93 Difference]: Finished difference Result 35746 states and 50092 transitions. [2021-11-05 19:17:46,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:17:46,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2021-11-05 19:17:46,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:17:46,591 INFO L225 Difference]: With dead ends: 35746 [2021-11-05 19:17:46,592 INFO L226 Difference]: Without dead ends: 22996 [2021-11-05 19:17:46,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:17:46,621 INFO L933 BasicCegarLoop]: 17904 mSDtfsCounter, 14422 mSDsluCounter, 17728 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 454.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14422 SdHoareTripleChecker+Valid, 35632 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 302.67ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 522.22ms IncrementalHoareTripleChecker+Time [2021-11-05 19:17:46,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14422 Valid, 35632 Invalid, 103 Unknown, 0 Unchecked, 302.67ms Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 522.22ms Time] [2021-11-05 19:17:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22996 states. [2021-11-05 19:17:46,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22996 to 22622. [2021-11-05 19:17:47,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22622 states, 22605 states have (on average 1.4048219420482195) internal successors, (31756), 22621 states have internal predecessors, (31756), 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) [2021-11-05 19:17:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22622 states to 22622 states and 31756 transitions. [2021-11-05 19:17:47,061 INFO L78 Accepts]: Start accepts. Automaton has 22622 states and 31756 transitions. Word has length 85 [2021-11-05 19:17:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:17:47,062 INFO L470 AbstractCegarLoop]: Abstraction has 22622 states and 31756 transitions. [2021-11-05 19:17:47,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-05 19:17:47,063 INFO L276 IsEmpty]: Start isEmpty. Operand 22622 states and 31756 transitions. [2021-11-05 19:17:47,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-05 19:17:47,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:17:47,072 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, 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] [2021-11-05 19:17:47,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:17:47,072 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-05 19:17:47,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:17:47,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1862114098, now seen corresponding path program 1 times [2021-11-05 19:17:47,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:17:47,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199257464] [2021-11-05 19:17:47,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:17:47,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:17:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:17:47,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:17:47,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:17:47,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199257464] [2021-11-05 19:17:47,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199257464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:17:47,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:17:47,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:17:47,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042489402] [2021-11-05 19:17:47,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:17:47,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:17:47,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:17:47,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:17:47,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:17:47,693 INFO L87 Difference]: Start difference. First operand 22622 states and 31756 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-05 19:17:48,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:17:48,747 INFO L93 Difference]: Finished difference Result 58072 states and 81187 transitions. [2021-11-05 19:17:48,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:17:48,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2021-11-05 19:17:48,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:17:48,818 INFO L225 Difference]: With dead ends: 58072 [2021-11-05 19:17:48,818 INFO L226 Difference]: Without dead ends: 35517 [2021-11-05 19:17:48,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:17:48,858 INFO L933 BasicCegarLoop]: 17904 mSDtfsCounter, 10922 mSDsluCounter, 17774 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 284.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10922 SdHoareTripleChecker+Valid, 35678 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.90ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 318.04ms IncrementalHoareTripleChecker+Time [2021-11-05 19:17:48,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10922 Valid, 35678 Invalid, 59 Unknown, 0 Unchecked, 29.90ms Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 318.04ms Time] [2021-11-05 19:17:48,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35517 states. [2021-11-05 19:17:49,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35517 to 35493. [2021-11-05 19:17:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35493 states, 35476 states have (on average 1.3950558123802006) internal successors, (49491), 35492 states have internal predecessors, (49491), 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) [2021-11-05 19:17:49,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35493 states to 35493 states and 49491 transitions. [2021-11-05 19:17:49,694 INFO L78 Accepts]: Start accepts. Automaton has 35493 states and 49491 transitions. Word has length 114 [2021-11-05 19:17:49,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:17:49,696 INFO L470 AbstractCegarLoop]: Abstraction has 35493 states and 49491 transitions. [2021-11-05 19:17:49,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-05 19:17:49,696 INFO L276 IsEmpty]: Start isEmpty. Operand 35493 states and 49491 transitions. [2021-11-05 19:17:49,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-05 19:17:49,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:17:49,705 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, 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, 1, 1] [2021-11-05 19:17:49,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:17:49,705 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-05 19:17:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:17:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash 322789384, now seen corresponding path program 1 times [2021-11-05 19:17:49,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:17:49,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686207928] [2021-11-05 19:17:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:17:49,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:17:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:17:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:17:50,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:17:50,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686207928] [2021-11-05 19:17:50,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686207928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:17:50,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:17:50,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:17:50,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74463743] [2021-11-05 19:17:50,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:17:50,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:17:50,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:17:50,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:17:50,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:17:50,256 INFO L87 Difference]: Start difference. First operand 35493 states and 49491 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-05 19:17:51,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:17:51,621 INFO L93 Difference]: Finished difference Result 99479 states and 138934 transitions. [2021-11-05 19:17:51,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:17:51,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2021-11-05 19:17:51,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:17:51,756 INFO L225 Difference]: With dead ends: 99479 [2021-11-05 19:17:51,756 INFO L226 Difference]: Without dead ends: 64053 [2021-11-05 19:17:51,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:17:51,813 INFO L933 BasicCegarLoop]: 24849 mSDtfsCounter, 15542 mSDsluCounter, 17768 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 296.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15542 SdHoareTripleChecker+Valid, 42617 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.48ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 332.54ms IncrementalHoareTripleChecker+Time [2021-11-05 19:17:51,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15542 Valid, 42617 Invalid, 65 Unknown, 0 Unchecked, 33.48ms Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 332.54ms Time] [2021-11-05 19:17:51,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64053 states. [2021-11-05 19:17:53,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64053 to 63983. [2021-11-05 19:17:53,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63983 states, 63966 states have (on average 1.3985085826845511) internal successors, (89457), 63982 states have internal predecessors, (89457), 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) [2021-11-05 19:17:53,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63983 states to 63983 states and 89457 transitions. [2021-11-05 19:17:53,488 INFO L78 Accepts]: Start accepts. Automaton has 63983 states and 89457 transitions. Word has length 124 [2021-11-05 19:17:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:17:53,488 INFO L470 AbstractCegarLoop]: Abstraction has 63983 states and 89457 transitions. [2021-11-05 19:17:53,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-05 19:17:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 63983 states and 89457 transitions. [2021-11-05 19:17:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-05 19:17:53,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:17:53,506 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, 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, 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] [2021-11-05 19:17:53,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:17:53,506 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-05 19:17:53,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:17:53,523 INFO L85 PathProgramCache]: Analyzing trace with hash -369778982, now seen corresponding path program 1 times [2021-11-05 19:17:53,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:17:53,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308938409] [2021-11-05 19:17:53,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:17:53,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:17:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:17:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:17:54,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:17:54,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308938409] [2021-11-05 19:17:54,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308938409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:17:54,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:17:54,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:17:54,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780161823] [2021-11-05 19:17:54,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:17:54,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:17:54,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:17:54,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:17:54,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:17:54,240 INFO L87 Difference]: Start difference. First operand 63983 states and 89457 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-11-05 19:17:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:17:56,659 INFO L93 Difference]: Finished difference Result 191251 states and 267263 transitions. [2021-11-05 19:17:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:17:56,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 152 [2021-11-05 19:17:56,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:17:57,055 INFO L225 Difference]: With dead ends: 191251 [2021-11-05 19:17:57,056 INFO L226 Difference]: Without dead ends: 127335 [2021-11-05 19:17:57,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:17:57,171 INFO L933 BasicCegarLoop]: 17867 mSDtfsCounter, 17665 mSDsluCounter, 17727 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 695.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17665 SdHoareTripleChecker+Valid, 35594 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.90ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 876.87ms IncrementalHoareTripleChecker+Time [2021-11-05 19:17:57,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17665 Valid, 35594 Invalid, 208 Unknown, 0 Unchecked, 29.90ms Time], IncrementalHoareTripleChecker [48 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 876.87ms Time] [2021-11-05 19:17:57,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127335 states. [2021-11-05 19:17:59,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127335 to 127301. [2021-11-05 19:17:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127301 states, 127284 states have (on average 1.3958627950095848) internal successors, (177671), 127300 states have internal predecessors, (177671), 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) [2021-11-05 19:18:00,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127301 states to 127301 states and 177671 transitions. [2021-11-05 19:18:00,116 INFO L78 Accepts]: Start accepts. Automaton has 127301 states and 177671 transitions. Word has length 152 [2021-11-05 19:18:00,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:18:00,117 INFO L470 AbstractCegarLoop]: Abstraction has 127301 states and 177671 transitions. [2021-11-05 19:18:00,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-11-05 19:18:00,117 INFO L276 IsEmpty]: Start isEmpty. Operand 127301 states and 177671 transitions. [2021-11-05 19:18:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-05 19:18:00,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:18:00,135 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, 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, 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] [2021-11-05 19:18:00,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:18:00,135 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-05 19:18:00,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:18:00,136 INFO L85 PathProgramCache]: Analyzing trace with hash -341691017, now seen corresponding path program 1 times [2021-11-05 19:18:00,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:18:00,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354642078] [2021-11-05 19:18:00,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:18:00,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:18:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:18:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:18:00,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:18:00,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354642078] [2021-11-05 19:18:00,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354642078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:18:00,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:18:00,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:18:00,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126885641] [2021-11-05 19:18:00,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:18:00,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:18:00,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:18:00,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:18:00,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:18:00,929 INFO L87 Difference]: Start difference. First operand 127301 states and 177671 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-05 19:18:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:18:05,130 INFO L93 Difference]: Finished difference Result 381073 states and 531809 transitions. [2021-11-05 19:18:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:18:05,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 153 [2021-11-05 19:18:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:18:05,745 INFO L225 Difference]: With dead ends: 381073 [2021-11-05 19:18:05,746 INFO L226 Difference]: Without dead ends: 253839 [2021-11-05 19:18:05,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:18:05,951 INFO L933 BasicCegarLoop]: 17835 mSDtfsCounter, 17702 mSDsluCounter, 17727 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 705.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17702 SdHoareTripleChecker+Valid, 35562 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.92ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 786.77ms IncrementalHoareTripleChecker+Time [2021-11-05 19:18:05,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17702 Valid, 35562 Invalid, 208 Unknown, 0 Unchecked, 31.92ms Time], IncrementalHoareTripleChecker [48 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 786.77ms Time] [2021-11-05 19:18:06,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253839 states. [2021-11-05 19:18:10,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253839 to 253805. [2021-11-05 19:18:11,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253805 states, 253788 states have (on average 1.3945458414109415) internal successors, (353919), 253804 states have internal predecessors, (353919), 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) [2021-11-05 19:18:11,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253805 states to 253805 states and 353919 transitions. [2021-11-05 19:18:11,806 INFO L78 Accepts]: Start accepts. Automaton has 253805 states and 353919 transitions. Word has length 153 [2021-11-05 19:18:11,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:18:11,807 INFO L470 AbstractCegarLoop]: Abstraction has 253805 states and 353919 transitions. [2021-11-05 19:18:11,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-05 19:18:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 253805 states and 353919 transitions. [2021-11-05 19:18:11,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-05 19:18:11,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:18:11,833 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, 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, 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] [2021-11-05 19:18:11,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 19:18:11,834 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-05 19:18:11,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:18:11,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1426195755, now seen corresponding path program 1 times [2021-11-05 19:18:11,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:18:11,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109501257] [2021-11-05 19:18:11,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:18:11,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:18:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:18:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:18:12,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:18:12,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109501257] [2021-11-05 19:18:12,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109501257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:18:12,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:18:12,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:18:12,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436480101] [2021-11-05 19:18:12,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:18:12,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:18:12,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:18:12,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:18:12,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:18:12,711 INFO L87 Difference]: Start difference. First operand 253805 states and 353919 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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)