./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--3com--3c589_cs.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.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 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:40:07,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:40:07,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:40:07,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:40:07,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:40:07,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:40:07,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:40:07,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:40:07,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:40:07,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:40:07,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:40:07,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:40:07,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:40:07,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:40:07,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:40:07,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:40:07,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:40:07,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:40:07,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:40:07,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:40:07,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:40:07,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:40:07,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:40:07,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:40:07,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:40:07,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:40:07,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:40:07,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:40:07,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:40:07,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:40:07,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:40:07,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:40:07,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:40:07,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:40:07,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:40:07,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:40:07,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:40:07,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:40:07,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:40:07,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:40:07,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:40:07,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:40:07,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:40:07,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:40:07,186 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:40:07,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:40:07,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:40:07,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:40:07,187 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:40:07,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:40:07,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:40:07,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:40:07,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:40:07,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:40:07,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:40:07,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:40:07,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:40:07,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:40:07,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:40:07,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:40:07,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:40:07,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:40:07,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:40:07,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:40:07,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:40:07,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:40:07,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:40:07,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:40:07,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:40:07,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:40:07,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:40:07,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 [2021-11-07 15:40:07,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:40:07,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:40:07,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:40:07,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:40:07,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:40:07,462 INFO L432 ainManager$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--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-07 15:40:07,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16dfd9e8c/b34715d714494b6490467aa8f0ce21b0/FLAGc590d8252 [2021-11-07 15:40:08,098 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:40:08,099 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--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-07 15:40:08,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16dfd9e8c/b34715d714494b6490467aa8f0ce21b0/FLAGc590d8252 [2021-11-07 15:40:08,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16dfd9e8c/b34715d714494b6490467aa8f0ce21b0 [2021-11-07 15:40:08,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:40:08,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:40:08,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:40:08,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:40:08,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:40:08,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:40:08" (1/1) ... [2021-11-07 15:40:08,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9cf99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:08, skipping insertion in model container [2021-11-07 15:40:08,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:40:08" (1/1) ... [2021-11-07 15:40:08,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:40:08,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:40:09,445 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--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2021-11-07 15:40:09,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:40:09,510 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:40:09,784 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--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2021-11-07 15:40:09,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:40:09,884 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:40:09,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09 WrapperNode [2021-11-07 15:40:09,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:40:09,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:40:09,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:40:09,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:40:09,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:09,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:40:10,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:40:10,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:40:10,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:40:10,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:40:10,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:40:10,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:40:10,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:40:10,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (1/1) ... [2021-11-07 15:40:10,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:40:10,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:40:10,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 15:40:10,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 15:40:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:40:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:40:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:40:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:40:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:40:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:40:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:40:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:40:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:40:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:40:10,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:40:21,054 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:40:21,055 INFO L299 CfgBuilder]: Removed 2182 assume(true) statements. [2021-11-07 15:40:21,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:40:21 BoogieIcfgContainer [2021-11-07 15:40:21,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:40:21,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:40:21,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:40:21,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:40:21,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:40:08" (1/3) ... [2021-11-07 15:40:21,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc40939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:40:21, skipping insertion in model container [2021-11-07 15:40:21,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09" (2/3) ... [2021-11-07 15:40:21,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc40939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:40:21, skipping insertion in model container [2021-11-07 15:40:21,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:40:21" (3/3) ... [2021-11-07 15:40:21,063 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-07 15:40:21,068 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:40:21,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-07 15:40:21,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:40:21,103 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 15:40:21,103 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 15:40:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 1923 states, 1914 states have (on average 1.3834900731452455) internal successors, (2648), 1922 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:21,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 15:40:21,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:40:21,140 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] [2021-11-07 15:40:21,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 15:40:21,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:40:21,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1801920152, now seen corresponding path program 1 times [2021-11-07 15:40:21,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:40:21,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5744643] [2021-11-07 15:40:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:40:21,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:40:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:40:21,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:40:21,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:40:21,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5744643] [2021-11-07 15:40:21,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5744643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:40:21,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:40:21,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:40:21,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257535767] [2021-11-07 15:40:21,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:40:21,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:40:21,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:40:21,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:40:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:40:21,672 INFO L87 Difference]: Start difference. First operand has 1923 states, 1914 states have (on average 1.3834900731452455) internal successors, (2648), 1922 states have internal predecessors, (2648), 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 37.5) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:40:21,736 INFO L93 Difference]: Finished difference Result 3842 states and 5291 transitions. [2021-11-07 15:40:21,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:40:21,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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 75 [2021-11-07 15:40:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:40:21,753 INFO L225 Difference]: With dead ends: 3842 [2021-11-07 15:40:21,753 INFO L226 Difference]: Without dead ends: 1896 [2021-11-07 15:40:21,760 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 [2021-11-07 15:40:21,762 INFO L933 BasicCegarLoop]: 2619 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, 2619 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:40:21,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 5.36ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:40:21,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2021-11-07 15:40:21,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1896. [2021-11-07 15:40:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1888 states have (on average 1.3606991525423728) internal successors, (2569), 1895 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:21,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2569 transitions. [2021-11-07 15:40:21,830 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2569 transitions. Word has length 75 [2021-11-07 15:40:21,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:40:21,830 INFO L470 AbstractCegarLoop]: Abstraction has 1896 states and 2569 transitions. [2021-11-07 15:40:21,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:21,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2569 transitions. [2021-11-07 15:40:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 15:40:21,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:40:21,834 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] [2021-11-07 15:40:21,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:40:21,834 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 15:40:21,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:40:21,835 INFO L85 PathProgramCache]: Analyzing trace with hash -582973410, now seen corresponding path program 1 times [2021-11-07 15:40:21,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:40:21,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718946317] [2021-11-07 15:40:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:40:21,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:40:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:40:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:40:22,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:40:22,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718946317] [2021-11-07 15:40:22,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718946317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:40:22,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:40:22,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 15:40:22,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355432001] [2021-11-07 15:40:22,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:40:22,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 15:40:22,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:40:22,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 15:40:22,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 15:40:22,085 INFO L87 Difference]: Start difference. First operand 1896 states and 2569 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:24,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:40:24,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:40:24,601 INFO L93 Difference]: Finished difference Result 6930 states and 9407 transitions. [2021-11-07 15:40:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 15:40:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 75 [2021-11-07 15:40:24,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:40:24,615 INFO L225 Difference]: With dead ends: 6930 [2021-11-07 15:40:24,615 INFO L226 Difference]: Without dead ends: 5061 [2021-11-07 15:40:24,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 63.51ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-07 15:40:24,619 INFO L933 BasicCegarLoop]: 2575 mSDtfsCounter, 11034 mSDsluCounter, 7298 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2143.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11034 SdHoareTripleChecker+Valid, 9873 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.37ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2301.37ms IncrementalHoareTripleChecker+Time [2021-11-07 15:40:24,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11034 Valid, 9873 Invalid, 119 Unknown, 0 Unchecked, 21.37ms Time], IncrementalHoareTripleChecker [32 Valid, 86 Invalid, 1 Unknown, 0 Unchecked, 2301.37ms Time] [2021-11-07 15:40:24,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5061 states. [2021-11-07 15:40:24,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5061 to 5008. [2021-11-07 15:40:24,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5008 states, 5000 states have (on average 1.3612) internal successors, (6806), 5007 states have internal predecessors, (6806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 6806 transitions. [2021-11-07 15:40:24,722 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 6806 transitions. Word has length 75 [2021-11-07 15:40:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:40:24,722 INFO L470 AbstractCegarLoop]: Abstraction has 5008 states and 6806 transitions. [2021-11-07 15:40:24,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 6806 transitions. [2021-11-07 15:40:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 15:40:24,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:40:24,725 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] [2021-11-07 15:40:24,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:40:24,725 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 15:40:24,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:40:24,726 INFO L85 PathProgramCache]: Analyzing trace with hash 335286776, now seen corresponding path program 1 times [2021-11-07 15:40:24,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:40:24,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786796375] [2021-11-07 15:40:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:40:24,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:40:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:40:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:40:24,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:40:24,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786796375] [2021-11-07 15:40:24,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786796375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:40:24,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:40:24,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 15:40:24,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559925630] [2021-11-07 15:40:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:40:24,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 15:40:24,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:40:24,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 15:40:24,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 15:40:24,948 INFO L87 Difference]: Start difference. First operand 5008 states and 6806 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:26,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:40:27,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:40:27,582 INFO L93 Difference]: Finished difference Result 18243 states and 24786 transitions. [2021-11-07 15:40:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 15:40:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 76 [2021-11-07 15:40:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:40:27,619 INFO L225 Difference]: With dead ends: 18243 [2021-11-07 15:40:27,619 INFO L226 Difference]: Without dead ends: 13262 [2021-11-07 15:40:27,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 52.50ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-07 15:40:27,647 INFO L933 BasicCegarLoop]: 2557 mSDtfsCounter, 11046 mSDsluCounter, 7252 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2134.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11046 SdHoareTripleChecker+Valid, 9809 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.43ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2268.15ms IncrementalHoareTripleChecker+Time [2021-11-07 15:40:27,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11046 Valid, 9809 Invalid, 115 Unknown, 0 Unchecked, 19.43ms Time], IncrementalHoareTripleChecker [32 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 2268.15ms Time] [2021-11-07 15:40:27,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13262 states. [2021-11-07 15:40:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13262 to 13166. [2021-11-07 15:40:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13166 states, 13158 states have (on average 1.3589451284389724) internal successors, (17881), 13165 states have internal predecessors, (17881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:28,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13166 states to 13166 states and 17881 transitions. [2021-11-07 15:40:28,071 INFO L78 Accepts]: Start accepts. Automaton has 13166 states and 17881 transitions. Word has length 76 [2021-11-07 15:40:28,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:40:28,071 INFO L470 AbstractCegarLoop]: Abstraction has 13166 states and 17881 transitions. [2021-11-07 15:40:28,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 13166 states and 17881 transitions. [2021-11-07 15:40:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 15:40:28,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:40:28,074 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] [2021-11-07 15:40:28,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:40:28,074 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 15:40:28,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:40:28,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1658364106, now seen corresponding path program 1 times [2021-11-07 15:40:28,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:40:28,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448033351] [2021-11-07 15:40:28,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:40:28,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:40:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:40:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:40:28,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:40:28,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448033351] [2021-11-07 15:40:28,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448033351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:40:28,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:40:28,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 15:40:28,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587350885] [2021-11-07 15:40:28,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:40:28,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 15:40:28,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:40:28,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 15:40:28,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 15:40:28,271 INFO L87 Difference]: Start difference. First operand 13166 states and 17881 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:30,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:40:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:40:31,295 INFO L93 Difference]: Finished difference Result 47461 states and 64364 transitions. [2021-11-07 15:40:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 15:40:31,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 77 [2021-11-07 15:40:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:40:31,373 INFO L225 Difference]: With dead ends: 47461 [2021-11-07 15:40:31,373 INFO L226 Difference]: Without dead ends: 34322 [2021-11-07 15:40:31,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 48.22ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-07 15:40:31,404 INFO L933 BasicCegarLoop]: 2556 mSDtfsCounter, 13586 mSDsluCounter, 5122 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2147.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13586 SdHoareTripleChecker+Valid, 7678 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.63ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2312.45ms IncrementalHoareTripleChecker+Time [2021-11-07 15:40:31,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13586 Valid, 7678 Invalid, 115 Unknown, 0 Unchecked, 19.63ms Time], IncrementalHoareTripleChecker [37 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 2312.45ms Time] [2021-11-07 15:40:31,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34322 states. [2021-11-07 15:40:32,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34322 to 34112. [2021-11-07 15:40:32,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34112 states, 34104 states have (on average 1.3550316678395495) internal successors, (46212), 34111 states have internal predecessors, (46212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34112 states to 34112 states and 46212 transitions. [2021-11-07 15:40:32,357 INFO L78 Accepts]: Start accepts. Automaton has 34112 states and 46212 transitions. Word has length 77 [2021-11-07 15:40:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:40:32,357 INFO L470 AbstractCegarLoop]: Abstraction has 34112 states and 46212 transitions. [2021-11-07 15:40:32,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 34112 states and 46212 transitions. [2021-11-07 15:40:32,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 15:40:32,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:40:32,360 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] [2021-11-07 15:40:32,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:40:32,360 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 15:40:32,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:40:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1357915664, now seen corresponding path program 1 times [2021-11-07 15:40:32,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:40:32,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411044065] [2021-11-07 15:40:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:40:32,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:40:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:40:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:40:32,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:40:32,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411044065] [2021-11-07 15:40:32,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411044065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:40:32,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:40:32,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 15:40:32,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844706414] [2021-11-07 15:40:32,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:40:32,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 15:40:32,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:40:32,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 15:40:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 15:40:32,540 INFO L87 Difference]: Start difference. First operand 34112 states and 46212 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:34,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:40:37,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:40:37,121 INFO L93 Difference]: Finished difference Result 120981 states and 163484 transitions. [2021-11-07 15:40:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 15:40:37,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 78 [2021-11-07 15:40:37,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:40:37,280 INFO L225 Difference]: With dead ends: 120981 [2021-11-07 15:40:37,281 INFO L226 Difference]: Without dead ends: 86896 [2021-11-07 15:40:37,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 52.44ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-07 15:40:37,345 INFO L933 BasicCegarLoop]: 2549 mSDtfsCounter, 13597 mSDsluCounter, 5119 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2149.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13597 SdHoareTripleChecker+Valid, 7668 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.67ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2281.02ms IncrementalHoareTripleChecker+Time [2021-11-07 15:40:37,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13597 Valid, 7668 Invalid, 114 Unknown, 0 Unchecked, 15.67ms Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 2281.02ms Time] [2021-11-07 15:40:37,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86896 states. [2021-11-07 15:40:39,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86896 to 86374. [2021-11-07 15:40:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86374 states, 86366 states have (on average 1.3494083319824932) internal successors, (116543), 86373 states have internal predecessors, (116543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86374 states to 86374 states and 116543 transitions. [2021-11-07 15:40:39,881 INFO L78 Accepts]: Start accepts. Automaton has 86374 states and 116543 transitions. Word has length 78 [2021-11-07 15:40:39,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:40:39,882 INFO L470 AbstractCegarLoop]: Abstraction has 86374 states and 116543 transitions. [2021-11-07 15:40:39,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 86374 states and 116543 transitions. [2021-11-07 15:40:39,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-07 15:40:39,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:40:39,911 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:40:39,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:40:39,912 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 15:40:39,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:40:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1692772988, now seen corresponding path program 1 times [2021-11-07 15:40:39,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:40:39,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954642583] [2021-11-07 15:40:39,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:40:39,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:40:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:40:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:40:40,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:40:40,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954642583] [2021-11-07 15:40:40,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954642583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:40:40,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:40:40,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:40:40,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919604747] [2021-11-07 15:40:40,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:40:40,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:40:40,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:40:40,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:40:40,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:40:40,036 INFO L87 Difference]: Start difference. First operand 86374 states and 116543 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:43,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:40:43,905 INFO L93 Difference]: Finished difference Result 218745 states and 296786 transitions. [2021-11-07 15:40:43,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:40:43,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 141 [2021-11-07 15:40:43,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:40:44,162 INFO L225 Difference]: With dead ends: 218745 [2021-11-07 15:40:44,163 INFO L226 Difference]: Without dead ends: 132398 [2021-11-07 15:40:44,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:40:44,292 INFO L933 BasicCegarLoop]: 4204 mSDtfsCounter, 1907 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 6655 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.96ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.98ms IncrementalHoareTripleChecker+Time [2021-11-07 15:40:44,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1907 Valid, 6655 Invalid, 86 Unknown, 0 Unchecked, 4.96ms Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 114.98ms Time] [2021-11-07 15:40:44,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132398 states. [2021-11-07 15:40:48,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132398 to 130924. [2021-11-07 15:40:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130924 states, 130916 states have (on average 1.3627058571908706) internal successors, (178400), 130923 states have internal predecessors, (178400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:48,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130924 states to 130924 states and 178400 transitions. [2021-11-07 15:40:48,599 INFO L78 Accepts]: Start accepts. Automaton has 130924 states and 178400 transitions. Word has length 141 [2021-11-07 15:40:48,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:40:48,600 INFO L470 AbstractCegarLoop]: Abstraction has 130924 states and 178400 transitions. [2021-11-07 15:40:48,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:48,600 INFO L276 IsEmpty]: Start isEmpty. Operand 130924 states and 178400 transitions. [2021-11-07 15:40:48,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-07 15:40:48,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:40:48,635 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:40:48,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 15:40:48,636 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 15:40:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:40:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash 964755318, now seen corresponding path program 1 times [2021-11-07 15:40:48,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:40:48,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285783641] [2021-11-07 15:40:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:40:48,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:40:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:40:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 15:40:48,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:40:48,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285783641] [2021-11-07 15:40:48,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285783641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:40:48,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:40:48,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:40:48,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97110672] [2021-11-07 15:40:48,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:40:48,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:40:48,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:40:48,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:40:48,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:40:48,784 INFO L87 Difference]: Start difference. First operand 130924 states and 178400 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:40:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:40:55,861 INFO L93 Difference]: Finished difference Result 370443 states and 505174 transitions. [2021-11-07 15:40:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:40:55,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 194 [2021-11-07 15:40:55,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:40:56,532 INFO L225 Difference]: With dead ends: 370443 [2021-11-07 15:40:56,532 INFO L226 Difference]: Without dead ends: 239546 [2021-11-07 15:40:56,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:40:56,813 INFO L933 BasicCegarLoop]: 4842 mSDtfsCounter, 2351 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 7365 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.40ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.91ms IncrementalHoareTripleChecker+Time [2021-11-07 15:40:56,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2351 Valid, 7365 Invalid, 20 Unknown, 0 Unchecked, 6.40ms Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 76.91ms Time] [2021-11-07 15:40:57,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239546 states.