./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-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.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 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 20:37:31,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 20:37:31,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 20:37:31,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 20:37:31,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 20:37:31,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 20:37:31,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 20:37:31,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 20:37:31,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 20:37:31,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 20:37:31,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 20:37:31,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 20:37:31,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 20:37:31,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 20:37:31,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 20:37:31,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 20:37:31,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 20:37:31,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 20:37:31,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 20:37:31,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 20:37:31,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 20:37:31,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 20:37:31,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 20:37:31,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 20:37:31,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 20:37:31,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 20:37:31,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 20:37:31,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 20:37:31,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 20:37:31,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 20:37:31,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 20:37:31,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 20:37:31,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 20:37:31,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 20:37:31,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 20:37:31,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 20:37:31,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 20:37:31,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 20:37:31,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 20:37:31,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 20:37:31,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 20:37:31,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 20:37:31,380 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 20:37:31,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 20:37:31,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 20:37:31,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 20:37:31,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 20:37:31,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 20:37:31,382 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 20:37:31,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 20:37:31,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 20:37:31,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 20:37:31,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 20:37:31,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 20:37:31,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 20:37:31,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 20:37:31,384 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 20:37:31,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 20:37:31,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 20:37:31,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 20:37:31,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 20:37:31,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 20:37:31,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 20:37:31,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 20:37:31,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 20:37:31,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 20:37:31,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 20:37:31,387 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 20:37:31,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 20:37:31,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 20:37:31,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 20:37:31,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 [2021-11-02 20:37:31,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 20:37:31,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 20:37:31,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 20:37:31,625 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 20:37:31,627 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 20:37:31,628 INFO L432 ainManager$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-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-02 20:37:31,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e044b67d3/e991f3056aaa44ceba4931e843c3de47/FLAG05ecc0d2c [2021-11-02 20:37:32,407 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 20:37:32,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-02 20:37:32,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e044b67d3/e991f3056aaa44ceba4931e843c3de47/FLAG05ecc0d2c [2021-11-02 20:37:32,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e044b67d3/e991f3056aaa44ceba4931e843c3de47 [2021-11-02 20:37:32,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 20:37:32,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 20:37:32,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 20:37:32,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 20:37:32,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 20:37:32,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:37:32" (1/1) ... [2021-11-02 20:37:32,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ebee5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:32, skipping insertion in model container [2021-11-02 20:37:32,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:37:32" (1/1) ... [2021-11-02 20:37:32,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 20:37:32,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 20:37:34,470 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-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-11-02 20:37:34,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 20:37:34,621 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 20:37:35,004 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-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-11-02 20:37:35,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 20:37:35,151 INFO L208 MainTranslator]: Completed translation [2021-11-02 20:37:35,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35 WrapperNode [2021-11-02 20:37:35,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 20:37:35,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 20:37:35,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 20:37:35,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 20:37:35,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 20:37:35,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 20:37:35,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 20:37:35,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 20:37:35,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:35,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 20:37:35,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 20:37:35,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 20:37:35,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 20:37:36,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (1/1) ... [2021-11-02 20:37:36,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 20:37:36,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 20:37:36,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 20:37:36,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 20:37:36,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 20:37:36,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 20:37:36,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 20:37:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 20:37:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 20:37:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 20:37:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 20:37:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 20:37:36,088 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 20:37:36,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 20:37:36,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 20:37:36,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 20:37:49,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 20:37:49,801 INFO L299 CfgBuilder]: Removed 1850 assume(true) statements. [2021-11-02 20:37:49,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:49 BoogieIcfgContainer [2021-11-02 20:37:49,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 20:37:49,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 20:37:49,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 20:37:49,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 20:37:49,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:37:32" (1/3) ... [2021-11-02 20:37:49,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b9c455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:49, skipping insertion in model container [2021-11-02 20:37:49,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:35" (2/3) ... [2021-11-02 20:37:49,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b9c455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:49, skipping insertion in model container [2021-11-02 20:37:49,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:49" (3/3) ... [2021-11-02 20:37:49,811 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-02 20:37:49,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 20:37:49,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2021-11-02 20:37:49,865 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 20:37:49,872 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 20:37:49,873 INFO L340 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2021-11-02 20:37:49,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 1939 states, 1885 states have (on average 1.4482758620689655) internal successors, (2730), 1938 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:37:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-02 20:37:49,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:37:49,929 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] [2021-11-02 20:37:49,930 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:37:49,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:37:49,934 INFO L85 PathProgramCache]: Analyzing trace with hash 515534990, now seen corresponding path program 1 times [2021-11-02 20:37:49,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:37:49,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528366385] [2021-11-02 20:37:49,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:37:49,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:37:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:37:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:37:50,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:37:50,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528366385] [2021-11-02 20:37:50,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528366385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:37:50,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:37:50,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 20:37:50,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839798549] [2021-11-02 20:37:50,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 20:37:50,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:37:50,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 20:37:50,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 20:37:50,942 INFO L87 Difference]: Start difference. First operand has 1939 states, 1885 states have (on average 1.4482758620689655) internal successors, (2730), 1938 states have internal predecessors, (2730), 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 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:37:53,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:38:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:38:10,647 INFO L93 Difference]: Finished difference Result 3874 states and 5455 transitions. [2021-11-02 20:38:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 20:38:10,652 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 34 [2021-11-02 20:38:10,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:38:10,679 INFO L225 Difference]: With dead ends: 3874 [2021-11-02 20:38:10,679 INFO L226 Difference]: Without dead ends: 1915 [2021-11-02 20:38:10,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 20:38:10,692 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2597 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17638.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2597 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19294.22ms IncrementalHoareTripleChecker+Time [2021-11-02 20:38:10,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 2598 Unknown, 0 Unchecked, 29.38ms Time], IncrementalHoareTripleChecker [0 Valid, 2597 Invalid, 1 Unknown, 0 Unchecked, 19294.22ms Time] [2021-11-02 20:38:10,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2021-11-02 20:38:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1915. [2021-11-02 20:38:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1862 states have (on average 1.3823845327604727) internal successors, (2574), 1914 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:38:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2574 transitions. [2021-11-02 20:38:10,795 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2574 transitions. Word has length 34 [2021-11-02 20:38:10,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:38:10,796 INFO L470 AbstractCegarLoop]: Abstraction has 1915 states and 2574 transitions. [2021-11-02 20:38:10,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:38:10,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2574 transitions. [2021-11-02 20:38:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-02 20:38:10,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:38:10,801 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] [2021-11-02 20:38:10,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 20:38:10,802 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:38:10,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:38:10,805 INFO L85 PathProgramCache]: Analyzing trace with hash -354019178, now seen corresponding path program 1 times [2021-11-02 20:38:10,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:38:10,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134773919] [2021-11-02 20:38:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:38:10,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:38:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:38:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:38:11,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:38:11,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134773919] [2021-11-02 20:38:11,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134773919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:38:11,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:38:11,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:38:11,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704224669] [2021-11-02 20:38:11,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:38:11,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:38:11,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:38:11,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:38:11,319 INFO L87 Difference]: Start difference. First operand 1915 states and 2574 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:38:13,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:38:48,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:38:48,774 INFO L93 Difference]: Finished difference Result 5671 states and 7645 transitions. [2021-11-02 20:38:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:38:48,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-11-02 20:38:48,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:38:48,790 INFO L225 Difference]: With dead ends: 5671 [2021-11-02 20:38:48,790 INFO L226 Difference]: Without dead ends: 3776 [2021-11-02 20:38:48,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:38:48,795 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2512 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 5135 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34473.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2512 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.59ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36841.65ms IncrementalHoareTripleChecker+Time [2021-11-02 20:38:48,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2512 Valid, 0 Invalid, 5139 Unknown, 0 Unchecked, 56.59ms Time], IncrementalHoareTripleChecker [3 Valid, 5135 Invalid, 1 Unknown, 0 Unchecked, 36841.65ms Time] [2021-11-02 20:38:48,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2021-11-02 20:38:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3672. [2021-11-02 20:38:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3619 states have (on average 1.3915446255871788) internal successors, (5036), 3671 states have internal predecessors, (5036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:38:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5036 transitions. [2021-11-02 20:38:48,864 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5036 transitions. Word has length 34 [2021-11-02 20:38:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:38:48,865 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 5036 transitions. [2021-11-02 20:38:48,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:38:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5036 transitions. [2021-11-02 20:38:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-02 20:38:48,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:38:48,867 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] [2021-11-02 20:38:48,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 20:38:48,867 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:38:48,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:38:48,868 INFO L85 PathProgramCache]: Analyzing trace with hash -199593292, now seen corresponding path program 1 times [2021-11-02 20:38:48,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:38:48,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336812322] [2021-11-02 20:38:48,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:38:48,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:38:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:38:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:38:49,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:38:49,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336812322] [2021-11-02 20:38:49,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336812322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:38:49,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:38:49,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 20:38:49,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125645056] [2021-11-02 20:38:49,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:38:49,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:38:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:38:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:38:49,337 INFO L87 Difference]: Start difference. First operand 3672 states and 5036 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:38:52,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:39:27,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:39:27,685 INFO L93 Difference]: Finished difference Result 10870 states and 14963 transitions. [2021-11-02 20:39:27,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:39:27,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-02 20:39:27,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:39:27,745 INFO L225 Difference]: With dead ends: 10870 [2021-11-02 20:39:27,745 INFO L226 Difference]: Without dead ends: 7216 [2021-11-02 20:39:27,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:39:27,757 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2378 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 5127 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35387.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2378 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.57ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 5127 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37860.89ms IncrementalHoareTripleChecker+Time [2021-11-02 20:39:27,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2378 Valid, 0 Invalid, 5180 Unknown, 0 Unchecked, 36.57ms Time], IncrementalHoareTripleChecker [52 Valid, 5127 Invalid, 1 Unknown, 0 Unchecked, 37860.89ms Time] [2021-11-02 20:39:27,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7216 states. [2021-11-02 20:39:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7216 to 7060. [2021-11-02 20:39:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7060 states, 7007 states have (on average 1.3891822463251036) internal successors, (9734), 7059 states have internal predecessors, (9734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:39:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 9734 transitions. [2021-11-02 20:39:27,918 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 9734 transitions. Word has length 40 [2021-11-02 20:39:27,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:39:27,919 INFO L470 AbstractCegarLoop]: Abstraction has 7060 states and 9734 transitions. [2021-11-02 20:39:27,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:39:27,920 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 9734 transitions. [2021-11-02 20:39:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-02 20:39:27,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:39:27,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 20:39:27,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 20:39:27,924 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:39:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:39:27,924 INFO L85 PathProgramCache]: Analyzing trace with hash -518682485, now seen corresponding path program 1 times [2021-11-02 20:39:27,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:39:27,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250726939] [2021-11-02 20:39:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:39:27,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:39:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:39:28,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:39:28,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:39:28,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250726939] [2021-11-02 20:39:28,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250726939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:39:28,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:39:28,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:39:28,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260621571] [2021-11-02 20:39:28,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:39:28,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:39:28,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:39:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:39:28,332 INFO L87 Difference]: Start difference. First operand 7060 states and 9734 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:39:31,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:40:07,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:40:07,466 INFO L93 Difference]: Finished difference Result 20449 states and 28105 transitions. [2021-11-02 20:40:07,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:40:07,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-02 20:40:07,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:40:07,513 INFO L225 Difference]: With dead ends: 20449 [2021-11-02 20:40:07,513 INFO L226 Difference]: Without dead ends: 13409 [2021-11-02 20:40:07,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:40:07,528 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2277 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 5148 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35920.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.04ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38596.56ms IncrementalHoareTripleChecker+Time [2021-11-02 20:40:07,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2277 Valid, 0 Invalid, 5150 Unknown, 0 Unchecked, 31.04ms Time], IncrementalHoareTripleChecker [1 Valid, 5148 Invalid, 1 Unknown, 0 Unchecked, 38596.56ms Time] [2021-11-02 20:40:07,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13409 states. [2021-11-02 20:40:07,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13409 to 13216. [2021-11-02 20:40:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13216 states, 13163 states have (on average 1.3860062295829219) internal successors, (18244), 13215 states have internal predecessors, (18244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:40:07,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13216 states to 13216 states and 18244 transitions. [2021-11-02 20:40:07,917 INFO L78 Accepts]: Start accepts. Automaton has 13216 states and 18244 transitions. Word has length 50 [2021-11-02 20:40:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:40:07,917 INFO L470 AbstractCegarLoop]: Abstraction has 13216 states and 18244 transitions. [2021-11-02 20:40:07,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:40:07,918 INFO L276 IsEmpty]: Start isEmpty. Operand 13216 states and 18244 transitions. [2021-11-02 20:40:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-02 20:40:07,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:40:07,920 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] [2021-11-02 20:40:07,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 20:40:07,920 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:40:07,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:40:07,921 INFO L85 PathProgramCache]: Analyzing trace with hash -320551080, now seen corresponding path program 1 times [2021-11-02 20:40:07,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:40:07,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864512469] [2021-11-02 20:40:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:40:07,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:40:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:40:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:40:08,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:40:08,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864512469] [2021-11-02 20:40:08,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864512469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:40:08,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:40:08,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:40:08,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073188132] [2021-11-02 20:40:08,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:40:08,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:40:08,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:40:08,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:40:08,351 INFO L87 Difference]: Start difference. First operand 13216 states and 18244 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:40:10,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:40:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:40:48,572 INFO L93 Difference]: Finished difference Result 38231 states and 52583 transitions. [2021-11-02 20:40:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:40:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-02 20:40:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:40:48,631 INFO L225 Difference]: With dead ends: 38231 [2021-11-02 20:40:48,632 INFO L226 Difference]: Without dead ends: 25035 [2021-11-02 20:40:48,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:40:48,656 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2260 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 5412 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36429.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.63ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39633.04ms IncrementalHoareTripleChecker+Time [2021-11-02 20:40:48,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2260 Valid, 0 Invalid, 5414 Unknown, 0 Unchecked, 28.63ms Time], IncrementalHoareTripleChecker [1 Valid, 5412 Invalid, 1 Unknown, 0 Unchecked, 39633.04ms Time] [2021-11-02 20:40:48,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25035 states. [2021-11-02 20:40:49,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25035 to 24852. [2021-11-02 20:40:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24852 states, 24799 states have (on average 1.37981370216541) internal successors, (34218), 24851 states have internal predecessors, (34218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:40:49,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24852 states to 24852 states and 34218 transitions. [2021-11-02 20:40:49,249 INFO L78 Accepts]: Start accepts. Automaton has 24852 states and 34218 transitions. Word has length 62 [2021-11-02 20:40:49,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:40:49,251 INFO L470 AbstractCegarLoop]: Abstraction has 24852 states and 34218 transitions. [2021-11-02 20:40:49,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:40:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 24852 states and 34218 transitions. [2021-11-02 20:40:49,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-02 20:40:49,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:40:49,257 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] [2021-11-02 20:40:49,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 20:40:49,258 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:40:49,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:40:49,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1126343220, now seen corresponding path program 1 times [2021-11-02 20:40:49,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:40:49,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015157556] [2021-11-02 20:40:49,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:40:49,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:40:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:40:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:40:49,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:40:49,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015157556] [2021-11-02 20:40:49,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015157556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:40:49,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:40:49,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:40:49,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738532003] [2021-11-02 20:40:49,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:40:49,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:40:49,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:40:49,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:40:49,648 INFO L87 Difference]: Start difference. First operand 24852 states and 34218 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:40:51,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:41:30,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:41:30,562 INFO L93 Difference]: Finished difference Result 59410 states and 81429 transitions. [2021-11-02 20:41:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:41:30,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-02 20:41:30,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:41:30,632 INFO L225 Difference]: With dead ends: 59410 [2021-11-02 20:41:30,632 INFO L226 Difference]: Without dead ends: 34578 [2021-11-02 20:41:30,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:41:30,671 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1087 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 5679 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37825.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5679 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40338.03ms IncrementalHoareTripleChecker+Time [2021-11-02 20:41:30,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 0 Invalid, 5681 Unknown, 0 Unchecked, 28.16ms Time], IncrementalHoareTripleChecker [1 Valid, 5679 Invalid, 1 Unknown, 0 Unchecked, 40338.03ms Time] [2021-11-02 20:41:30,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34578 states. [2021-11-02 20:41:31,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34578 to 34532. [2021-11-02 20:41:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34532 states, 34479 states have (on average 1.368079120624148) internal successors, (47170), 34531 states have internal predecessors, (47170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:41:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34532 states to 34532 states and 47170 transitions. [2021-11-02 20:41:31,326 INFO L78 Accepts]: Start accepts. Automaton has 34532 states and 47170 transitions. Word has length 70 [2021-11-02 20:41:31,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:41:31,326 INFO L470 AbstractCegarLoop]: Abstraction has 34532 states and 47170 transitions. [2021-11-02 20:41:31,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:41:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 34532 states and 47170 transitions. [2021-11-02 20:41:31,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-02 20:41:31,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:41:31,331 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-11-02 20:41:31,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 20:41:31,331 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:41:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:41:31,331 INFO L85 PathProgramCache]: Analyzing trace with hash 742851849, now seen corresponding path program 1 times [2021-11-02 20:41:31,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:41:31,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290449984] [2021-11-02 20:41:31,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:41:31,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:41:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:41:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:41:31,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:41:31,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290449984] [2021-11-02 20:41:31,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290449984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:41:31,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:41:31,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:41:31,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961161575] [2021-11-02 20:41:31,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:41:31,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:41:31,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:41:31,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:41:31,890 INFO L87 Difference]: Start difference. First operand 34532 states and 47170 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:41:34,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:42:14,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:42:14,536 INFO L93 Difference]: Finished difference Result 85229 states and 116235 transitions. [2021-11-02 20:42:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:42:14,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-02 20:42:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:42:14,651 INFO L225 Difference]: With dead ends: 85229 [2021-11-02 20:42:14,651 INFO L226 Difference]: Without dead ends: 50717 [2021-11-02 20:42:14,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:42:14,699 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2440 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 5551 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38166.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.17ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5551 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41799.34ms IncrementalHoareTripleChecker+Time [2021-11-02 20:42:14,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2440 Valid, 0 Invalid, 5564 Unknown, 0 Unchecked, 28.17ms Time], IncrementalHoareTripleChecker [12 Valid, 5551 Invalid, 1 Unknown, 0 Unchecked, 41799.34ms Time] [2021-11-02 20:42:14,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50717 states. [2021-11-02 20:42:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50717 to 50524. [2021-11-02 20:42:15,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50524 states, 50471 states have (on average 1.3637534425709814) internal successors, (68830), 50523 states have internal predecessors, (68830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:42:15,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50524 states to 50524 states and 68830 transitions. [2021-11-02 20:42:15,993 INFO L78 Accepts]: Start accepts. Automaton has 50524 states and 68830 transitions. Word has length 89 [2021-11-02 20:42:15,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:42:15,993 INFO L470 AbstractCegarLoop]: Abstraction has 50524 states and 68830 transitions. [2021-11-02 20:42:15,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:42:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 50524 states and 68830 transitions. [2021-11-02 20:42:16,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-02 20:42:16,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:42:16,008 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2021-11-02 20:42:16,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 20:42:16,008 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:42:16,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:42:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash -767985962, now seen corresponding path program 1 times [2021-11-02 20:42:16,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:42:16,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324357032] [2021-11-02 20:42:16,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:42:16,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:42:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:42:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:42:16,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:42:16,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324357032] [2021-11-02 20:42:16,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324357032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:42:16,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:42:16,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:42:16,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211579949] [2021-11-02 20:42:16,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:42:16,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:42:16,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:42:16,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:42:16,718 INFO L87 Difference]: Start difference. First operand 50524 states and 68830 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:42:18,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:43:00,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:43:00,817 INFO L93 Difference]: Finished difference Result 124619 states and 169513 transitions. [2021-11-02 20:43:00,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:43:00,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-02 20:43:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:43:00,969 INFO L225 Difference]: With dead ends: 124619 [2021-11-02 20:43:00,969 INFO L226 Difference]: Without dead ends: 74115 [2021-11-02 20:43:01,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:43:01,041 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2423 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 5541 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38959.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.91ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5541 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42897.03ms IncrementalHoareTripleChecker+Time [2021-11-02 20:43:01,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2423 Valid, 0 Invalid, 5554 Unknown, 0 Unchecked, 27.91ms Time], IncrementalHoareTripleChecker [12 Valid, 5541 Invalid, 1 Unknown, 0 Unchecked, 42897.03ms Time] [2021-11-02 20:43:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74115 states. [2021-11-02 20:43:02,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74115 to 73932. [2021-11-02 20:43:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73932 states, 73879 states have (on average 1.3590059421486484) internal successors, (100402), 73931 states have internal predecessors, (100402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:43:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73932 states to 73932 states and 100402 transitions. [2021-11-02 20:43:02,445 INFO L78 Accepts]: Start accepts. Automaton has 73932 states and 100402 transitions. Word has length 101 [2021-11-02 20:43:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:43:02,445 INFO L470 AbstractCegarLoop]: Abstraction has 73932 states and 100402 transitions. [2021-11-02 20:43:02,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:43:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 73932 states and 100402 transitions. [2021-11-02 20:43:02,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-02 20:43:02,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:43:02,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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] [2021-11-02 20:43:02,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 20:43:02,455 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:43:02,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:43:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash -42916485, now seen corresponding path program 1 times [2021-11-02 20:43:02,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:43:02,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177006630] [2021-11-02 20:43:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:43:02,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:43:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:43:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 20:43:04,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:43:04,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177006630] [2021-11-02 20:43:04,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177006630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:43:04,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:43:04,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 20:43:04,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683597108] [2021-11-02 20:43:04,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 20:43:04,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:43:04,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 20:43:04,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 20:43:04,050 INFO L87 Difference]: Start difference. First operand 73932 states and 100402 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:43:06,174 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:45:29,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:45:29,113 INFO L93 Difference]: Finished difference Result 268198 states and 363534 transitions. [2021-11-02 20:45:29,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 20:45:29,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 104 [2021-11-02 20:45:29,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:45:29,714 INFO L225 Difference]: With dead ends: 268198 [2021-11-02 20:45:29,714 INFO L226 Difference]: Without dead ends: 194286 [2021-11-02 20:45:30,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 304.54ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-02 20:45:30,025 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 13859 mSDsluCounter, 14404 mSDsCounter, 0 mSdLazyCounter, 19573 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131211.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13859 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 212.49ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19573 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141028.13ms IncrementalHoareTripleChecker+Time [2021-11-02 20:45:30,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13859 Valid, 0 Invalid, 19580 Unknown, 0 Unchecked, 212.49ms Time], IncrementalHoareTripleChecker [6 Valid, 19573 Invalid, 1 Unknown, 0 Unchecked, 141028.13ms Time] [2021-11-02 20:45:30,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194286 states. [2021-11-02 20:45:32,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194286 to 74076. [2021-11-02 20:45:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74076 states, 74023 states have (on average 1.3586317766099725) internal successors, (100570), 74075 states have internal predecessors, (100570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:45:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74076 states to 74076 states and 100570 transitions. [2021-11-02 20:45:32,901 INFO L78 Accepts]: Start accepts. Automaton has 74076 states and 100570 transitions. Word has length 104 [2021-11-02 20:45:32,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:45:32,902 INFO L470 AbstractCegarLoop]: Abstraction has 74076 states and 100570 transitions. [2021-11-02 20:45:32,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:45:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 74076 states and 100570 transitions. [2021-11-02 20:45:32,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-02 20:45:32,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:45:32,910 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2021-11-02 20:45:32,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 20:45:32,910 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:45:32,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:45:32,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1443296178, now seen corresponding path program 1 times [2021-11-02 20:45:32,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:45:32,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670389168] [2021-11-02 20:45:32,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:45:32,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:45:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:45:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-02 20:45:33,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:45:33,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670389168] [2021-11-02 20:45:33,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670389168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:45:33,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:45:33,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:45:33,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074923566] [2021-11-02 20:45:33,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:45:33,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:45:33,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:45:33,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:45:33,357 INFO L87 Difference]: Start difference. First operand 74076 states and 100570 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:45:35,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:46:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:46:15,775 INFO L93 Difference]: Finished difference Result 148456 states and 201768 transitions. [2021-11-02 20:46:15,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:46:15,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 109 [2021-11-02 20:46:15,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:46:15,894 INFO L225 Difference]: With dead ends: 148456 [2021-11-02 20:46:15,894 INFO L226 Difference]: Without dead ends: 74400 [2021-11-02 20:46:15,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:46:15,956 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 5141 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37374.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.10ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5141 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40750.15ms IncrementalHoareTripleChecker+Time [2021-11-02 20:46:15,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 5150 Unknown, 0 Unchecked, 32.10ms Time], IncrementalHoareTripleChecker [8 Valid, 5141 Invalid, 1 Unknown, 0 Unchecked, 40750.15ms Time] [2021-11-02 20:46:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74400 states. [2021-11-02 20:46:17,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74400 to 74400. [2021-11-02 20:46:17,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74400 states, 74347 states have (on average 1.3570688797126986) internal successors, (100894), 74399 states have internal predecessors, (100894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:46:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74400 states to 74400 states and 100894 transitions. [2021-11-02 20:46:17,918 INFO L78 Accepts]: Start accepts. Automaton has 74400 states and 100894 transitions. Word has length 109 [2021-11-02 20:46:17,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:46:17,919 INFO L470 AbstractCegarLoop]: Abstraction has 74400 states and 100894 transitions. [2021-11-02 20:46:17,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:46:17,919 INFO L276 IsEmpty]: Start isEmpty. Operand 74400 states and 100894 transitions. [2021-11-02 20:46:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 20:46:17,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:46:17,955 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2021-11-02 20:46:17,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 20:46:17,960 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:46:17,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:46:17,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1757183884, now seen corresponding path program 1 times [2021-11-02 20:46:17,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:46:17,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141095478] [2021-11-02 20:46:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:46:17,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:46:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:46:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-02 20:46:19,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:46:19,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141095478] [2021-11-02 20:46:19,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141095478] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 20:46:19,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371948849] [2021-11-02 20:46:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:46:19,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 20:46:19,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 20:46:19,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 20:46:19,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 20:46:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:46:20,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 6874 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 20:46:21,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 20:46:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-02 20:46:21,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 20:46:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-02 20:46:22,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371948849] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-02 20:46:22,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-02 20:46:22,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-02 20:46:22,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339801183] [2021-11-02 20:46:22,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 20:46:22,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:46:22,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 20:46:22,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-02 20:46:22,175 INFO L87 Difference]: Start difference. First operand 74400 states and 100894 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:46:24,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:47:27,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:47:27,220 INFO L93 Difference]: Finished difference Result 149752 states and 203712 transitions. [2021-11-02 20:47:27,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 20:47:27,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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 110 [2021-11-02 20:47:27,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:47:27,343 INFO L225 Difference]: With dead ends: 149752 [2021-11-02 20:47:27,343 INFO L226 Difference]: Without dead ends: 75372 [2021-11-02 20:47:27,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 447.91ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-02 20:47:27,389 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 5116 mSDsCounter, 0 mSdLazyCounter, 7719 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56605.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.59ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 7719 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63338.55ms IncrementalHoareTripleChecker+Time [2021-11-02 20:47:27,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 7769 Unknown, 0 Unchecked, 54.59ms Time], IncrementalHoareTripleChecker [49 Valid, 7719 Invalid, 1 Unknown, 0 Unchecked, 63338.55ms Time] [2021-11-02 20:47:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75372 states. [2021-11-02 20:47:28,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75372 to 75372. [2021-11-02 20:47:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75372 states, 75319 states have (on average 1.352460866448041) internal successors, (101866), 75371 states have internal predecessors, (101866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:47:28,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75372 states to 75372 states and 101866 transitions. [2021-11-02 20:47:28,897 INFO L78 Accepts]: Start accepts. Automaton has 75372 states and 101866 transitions. Word has length 110 [2021-11-02 20:47:28,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:47:28,897 INFO L470 AbstractCegarLoop]: Abstraction has 75372 states and 101866 transitions. [2021-11-02 20:47:28,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 20:47:28,897 INFO L276 IsEmpty]: Start isEmpty. Operand 75372 states and 101866 transitions. [2021-11-02 20:47:28,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 20:47:28,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:47:28,904 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 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] [2021-11-02 20:47:28,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 20:47:29,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-02 20:47:29,107 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-02 20:47:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:47:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash 486021682, now seen corresponding path program 2 times [2021-11-02 20:47:29,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:47:29,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124646359] [2021-11-02 20:47:29,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:47:29,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:47:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:47:30,410 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-02 20:47:30,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:47:30,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124646359] [2021-11-02 20:47:30,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124646359] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 20:47:30,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748653485] [2021-11-02 20:47:30,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 20:47:30,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 20:47:30,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 20:47:30,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 20:47:30,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process Killed by 15