./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-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-32_7a-drivers--pcmcia--pcmcia_rsrc.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 afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:52:35,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:52:35,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:52:35,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:52:35,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:52:35,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:52:35,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:52:35,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:52:35,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:52:35,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:52:35,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:52:35,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:52:35,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:52:35,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:52:35,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:52:35,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:52:35,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:52:35,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:52:35,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:52:35,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:52:35,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:52:35,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:52:35,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:52:35,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:52:35,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:52:35,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:52:35,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:52:35,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:52:35,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:52:35,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:52:35,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:52:35,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:52:35,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:52:35,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:52:35,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:52:35,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:52:35,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:52:35,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:52:35,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:52:35,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:52:35,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:52:35,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:52:35,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:52:35,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:52:35,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:52:35,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:52:35,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:52:35,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:52:35,586 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:52:35,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:52:35,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:52:35,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:52:35,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:52:35,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:52:35,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:52:35,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:52:35,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:52:35,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:52:35,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:52:35,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:52:35,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:52:35,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:52:35,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:52:35,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:52:35,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:52:35,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:52:35,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:52:35,590 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:52:35,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:52:35,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:52:35,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:52:35,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a [2021-11-06 16:52:35,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:52:35,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:52:35,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:52:35,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:52:35,775 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:52:35,775 INFO L432 ainManager$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-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-11-06 16:52:35,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ca93f96/036f6e2d66064c309f6da14a71889863/FLAGb50fefe6a [2021-11-06 16:52:36,391 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:52:36,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-11-06 16:52:36,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ca93f96/036f6e2d66064c309f6da14a71889863/FLAGb50fefe6a [2021-11-06 16:52:36,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ca93f96/036f6e2d66064c309f6da14a71889863 [2021-11-06 16:52:36,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:52:36,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:52:36,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:52:36,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:52:36,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:52:36,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:52:36" (1/1) ... [2021-11-06 16:52:36,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e49ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:36, skipping insertion in model container [2021-11-06 16:52:36,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:52:36" (1/1) ... [2021-11-06 16:52:36,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:52:36,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:52:37,287 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-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2021-11-06 16:52:37,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:52:37,356 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:52:37,516 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-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2021-11-06 16:52:37,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:52:37,575 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:52:37,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37 WrapperNode [2021-11-06 16:52:37,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:52:37,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:52:37,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:52:37,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:52:37,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:37,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:52:38,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:52:38,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:52:38,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:52:38,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:52:38,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:52:38,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:52:38,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:52:38,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (1/1) ... [2021-11-06 16:52:38,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:52:38,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:52:38,526 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) [2021-11-06 16:52:38,574 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 [2021-11-06 16:52:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:52:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:52:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:52:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:52:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:52:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:52:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:52:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:52:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:52:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:52:38,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:52:46,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:52:46,090 INFO L299 CfgBuilder]: Removed 3868 assume(true) statements. [2021-11-06 16:52:46,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:52:46 BoogieIcfgContainer [2021-11-06 16:52:46,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:52:46,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:52:46,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:52:46,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:52:46,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:52:36" (1/3) ... [2021-11-06 16:52:46,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d4a0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:52:46, skipping insertion in model container [2021-11-06 16:52:46,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:52:37" (2/3) ... [2021-11-06 16:52:46,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d4a0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:52:46, skipping insertion in model container [2021-11-06 16:52:46,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:52:46" (3/3) ... [2021-11-06 16:52:46,100 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-11-06 16:52:46,103 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:52:46,103 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 131 error locations. [2021-11-06 16:52:46,149 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:52:46,154 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 [2021-11-06 16:52:46,154 INFO L340 AbstractCegarLoop]: Starting to check reachability of 131 error locations. [2021-11-06 16:52:46,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 4211 states, 4079 states have (on average 1.4376072566805589) internal successors, (5864), 4210 states have internal predecessors, (5864), 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) [2021-11-06 16:52:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 16:52:46,221 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:46,222 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:46,222 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:46,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:46,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1726912436, now seen corresponding path program 1 times [2021-11-06 16:52:46,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:46,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997912345] [2021-11-06 16:52:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:46,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:46,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:46,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997912345] [2021-11-06 16:52:46,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997912345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:46,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:46,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:52:46,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902323920] [2021-11-06 16:52:46,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 16:52:46,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 16:52:46,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:52:46,562 INFO L87 Difference]: Start difference. First operand has 4211 states, 4079 states have (on average 1.4376072566805589) internal successors, (5864), 4210 states have internal predecessors, (5864), 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 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-11-06 16:52:46,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:46,721 INFO L93 Difference]: Finished difference Result 8418 states and 11723 transitions. [2021-11-06 16:52:46,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 16:52:46,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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 93 [2021-11-06 16:52:46,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:46,749 INFO L225 Difference]: With dead ends: 8418 [2021-11-06 16:52:46,749 INFO L226 Difference]: Without dead ends: 4198 [2021-11-06 16:52:46,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:52:46,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2021-11-06 16:52:46,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 4198. [2021-11-06 16:52:46,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4198 states, 4067 states have (on average 1.368576346201131) internal successors, (5566), 4197 states have internal predecessors, (5566), 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) [2021-11-06 16:52:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4198 states to 4198 states and 5566 transitions. [2021-11-06 16:52:46,910 INFO L78 Accepts]: Start accepts. Automaton has 4198 states and 5566 transitions. Word has length 93 [2021-11-06 16:52:46,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:46,911 INFO L470 AbstractCegarLoop]: Abstraction has 4198 states and 5566 transitions. [2021-11-06 16:52:46,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-11-06 16:52:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 4198 states and 5566 transitions. [2021-11-06 16:52:46,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 16:52:46,917 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:46,917 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:46,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 16:52:46,918 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:46,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash 590752870, now seen corresponding path program 1 times [2021-11-06 16:52:46,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:46,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443329607] [2021-11-06 16:52:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:46,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:47,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:47,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443329607] [2021-11-06 16:52:47,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443329607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:47,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:47,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:52:47,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065370975] [2021-11-06 16:52:47,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:47,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:47,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:47,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:47,157 INFO L87 Difference]: Start difference. First operand 4198 states and 5566 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-06 16:52:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:47,441 INFO L93 Difference]: Finished difference Result 12313 states and 16352 transitions. [2021-11-06 16:52:47,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:47,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2021-11-06 16:52:47,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:47,466 INFO L225 Difference]: With dead ends: 12313 [2021-11-06 16:52:47,467 INFO L226 Difference]: Without dead ends: 8198 [2021-11-06 16:52:47,475 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:47,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8198 states. [2021-11-06 16:52:47,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8198 to 7921. [2021-11-06 16:52:47,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7921 states, 7790 states have (on average 1.377663671373556) internal successors, (10732), 7920 states have internal predecessors, (10732), 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) [2021-11-06 16:52:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7921 states to 7921 states and 10732 transitions. [2021-11-06 16:52:47,632 INFO L78 Accepts]: Start accepts. Automaton has 7921 states and 10732 transitions. Word has length 93 [2021-11-06 16:52:47,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:47,634 INFO L470 AbstractCegarLoop]: Abstraction has 7921 states and 10732 transitions. [2021-11-06 16:52:47,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-06 16:52:47,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7921 states and 10732 transitions. [2021-11-06 16:52:47,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-06 16:52:47,638 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:47,638 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:47,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 16:52:47,638 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:47,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:47,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1353777937, now seen corresponding path program 1 times [2021-11-06 16:52:47,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:47,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219597296] [2021-11-06 16:52:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:47,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:47,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:47,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219597296] [2021-11-06 16:52:47,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219597296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:47,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:47,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:52:47,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169587346] [2021-11-06 16:52:47,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:47,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:47,788 INFO L87 Difference]: Start difference. First operand 7921 states and 10732 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-06 16:52:48,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:48,010 INFO L93 Difference]: Finished difference Result 22122 states and 30031 transitions. [2021-11-06 16:52:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:48,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2021-11-06 16:52:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:48,070 INFO L225 Difference]: With dead ends: 22122 [2021-11-06 16:52:48,070 INFO L226 Difference]: Without dead ends: 14284 [2021-11-06 16:52:48,085 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:48,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14284 states. [2021-11-06 16:52:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14284 to 14069. [2021-11-06 16:52:48,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14069 states, 13938 states have (on average 1.3834122542689051) internal successors, (19282), 14068 states have internal predecessors, (19282), 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) [2021-11-06 16:52:48,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14069 states to 14069 states and 19282 transitions. [2021-11-06 16:52:48,377 INFO L78 Accepts]: Start accepts. Automaton has 14069 states and 19282 transitions. Word has length 95 [2021-11-06 16:52:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:48,377 INFO L470 AbstractCegarLoop]: Abstraction has 14069 states and 19282 transitions. [2021-11-06 16:52:48,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-06 16:52:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 14069 states and 19282 transitions. [2021-11-06 16:52:48,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-06 16:52:48,379 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:48,379 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:48,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 16:52:48,379 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr128ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:48,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:48,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1793568847, now seen corresponding path program 1 times [2021-11-06 16:52:48,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:48,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266289480] [2021-11-06 16:52:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:48,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:48,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:48,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266289480] [2021-11-06 16:52:48,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266289480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:48,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:48,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:52:48,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823766991] [2021-11-06 16:52:48,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:48,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:48,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:48,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:48,469 INFO L87 Difference]: Start difference. First operand 14069 states and 19282 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-06 16:52:49,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:49,235 INFO L93 Difference]: Finished difference Result 41969 states and 57569 transitions. [2021-11-06 16:52:49,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:49,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2021-11-06 16:52:49,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:49,304 INFO L225 Difference]: With dead ends: 41969 [2021-11-06 16:52:49,305 INFO L226 Difference]: Without dead ends: 27983 [2021-11-06 16:52:49,326 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:49,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27983 states. [2021-11-06 16:52:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27983 to 27727. [2021-11-06 16:52:49,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27727 states, 27596 states have (on average 1.3859254964487606) internal successors, (38246), 27726 states have internal predecessors, (38246), 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) [2021-11-06 16:52:49,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27727 states to 27727 states and 38246 transitions. [2021-11-06 16:52:49,786 INFO L78 Accepts]: Start accepts. Automaton has 27727 states and 38246 transitions. Word has length 97 [2021-11-06 16:52:49,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:49,787 INFO L470 AbstractCegarLoop]: Abstraction has 27727 states and 38246 transitions. [2021-11-06 16:52:49,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-06 16:52:49,787 INFO L276 IsEmpty]: Start isEmpty. Operand 27727 states and 38246 transitions. [2021-11-06 16:52:49,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-06 16:52:49,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:49,788 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:49,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 16:52:49,791 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr128ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1491295702, now seen corresponding path program 1 times [2021-11-06 16:52:49,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:49,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591495637] [2021-11-06 16:52:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:49,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:49,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:49,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591495637] [2021-11-06 16:52:49,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591495637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:49,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:49,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:52:49,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611271024] [2021-11-06 16:52:49,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:49,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:49,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:49,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:49,932 INFO L87 Difference]: Start difference. First operand 27727 states and 38246 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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) [2021-11-06 16:52:50,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:50,278 INFO L93 Difference]: Finished difference Result 27727 states and 38246 transitions. [2021-11-06 16:52:50,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:50,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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 100 [2021-11-06 16:52:50,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:50,331 INFO L225 Difference]: With dead ends: 27727 [2021-11-06 16:52:50,332 INFO L226 Difference]: Without dead ends: 27725 [2021-11-06 16:52:50,342 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:50,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27725 states. [2021-11-06 16:52:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27725 to 27725. [2021-11-06 16:52:50,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27725 states, 27595 states have (on average 1.385903243341185) internal successors, (38244), 27724 states have internal predecessors, (38244), 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) [2021-11-06 16:52:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27725 states to 27725 states and 38244 transitions. [2021-11-06 16:52:50,806 INFO L78 Accepts]: Start accepts. Automaton has 27725 states and 38244 transitions. Word has length 100 [2021-11-06 16:52:50,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:50,806 INFO L470 AbstractCegarLoop]: Abstraction has 27725 states and 38244 transitions. [2021-11-06 16:52:50,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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) [2021-11-06 16:52:50,806 INFO L276 IsEmpty]: Start isEmpty. Operand 27725 states and 38244 transitions. [2021-11-06 16:52:50,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-06 16:52:50,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:50,807 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:50,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 16:52:50,808 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr129ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:50,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:50,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1014453425, now seen corresponding path program 1 times [2021-11-06 16:52:50,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:50,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289247462] [2021-11-06 16:52:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:50,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:50,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:50,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289247462] [2021-11-06 16:52:50,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289247462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:50,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:50,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:52:50,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085314133] [2021-11-06 16:52:50,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:50,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:50,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:50,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:50,916 INFO L87 Difference]: Start difference. First operand 27725 states and 38244 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 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) [2021-11-06 16:52:51,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:51,302 INFO L93 Difference]: Finished difference Result 27725 states and 38244 transitions. [2021-11-06 16:52:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:51,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 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 [2021-11-06 16:52:51,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:51,348 INFO L225 Difference]: With dead ends: 27725 [2021-11-06 16:52:51,348 INFO L226 Difference]: Without dead ends: 27723 [2021-11-06 16:52:51,358 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27723 states. [2021-11-06 16:52:51,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27723 to 27723. [2021-11-06 16:52:51,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27723 states, 27594 states have (on average 1.3858809886207146) internal successors, (38242), 27722 states have internal predecessors, (38242), 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) [2021-11-06 16:52:51,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27723 states to 27723 states and 38242 transitions. [2021-11-06 16:52:51,834 INFO L78 Accepts]: Start accepts. Automaton has 27723 states and 38242 transitions. Word has length 101 [2021-11-06 16:52:51,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:51,835 INFO L470 AbstractCegarLoop]: Abstraction has 27723 states and 38242 transitions. [2021-11-06 16:52:51,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 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) [2021-11-06 16:52:51,835 INFO L276 IsEmpty]: Start isEmpty. Operand 27723 states and 38242 transitions. [2021-11-06 16:52:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-06 16:52:51,837 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:51,837 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:51,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 16:52:51,838 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr130ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:51,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:51,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1383265024, now seen corresponding path program 1 times [2021-11-06 16:52:51,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:51,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588835753] [2021-11-06 16:52:51,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:51,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:51,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:51,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588835753] [2021-11-06 16:52:51,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588835753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:51,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:51,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:52:51,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145902109] [2021-11-06 16:52:51,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:51,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:51,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:51,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:51,945 INFO L87 Difference]: Start difference. First operand 27723 states and 38242 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 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) [2021-11-06 16:52:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:52,686 INFO L93 Difference]: Finished difference Result 55123 states and 76521 transitions. [2021-11-06 16:52:52,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:52,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 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 102 [2021-11-06 16:52:52,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:52,731 INFO L225 Difference]: With dead ends: 55123 [2021-11-06 16:52:52,731 INFO L226 Difference]: Without dead ends: 27479 [2021-11-06 16:52:52,766 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:52,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27479 states. [2021-11-06 16:52:53,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27479 to 25671. [2021-11-06 16:52:53,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25671 states, 25599 states have (on average 1.3861088323762647) internal successors, (35483), 25670 states have internal predecessors, (35483), 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) [2021-11-06 16:52:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25671 states to 25671 states and 35483 transitions. [2021-11-06 16:52:53,332 INFO L78 Accepts]: Start accepts. Automaton has 25671 states and 35483 transitions. Word has length 102 [2021-11-06 16:52:53,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:53,332 INFO L470 AbstractCegarLoop]: Abstraction has 25671 states and 35483 transitions. [2021-11-06 16:52:53,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 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) [2021-11-06 16:52:53,333 INFO L276 IsEmpty]: Start isEmpty. Operand 25671 states and 35483 transitions. [2021-11-06 16:52:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-06 16:52:53,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:53,337 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:53,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 16:52:53,337 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:53,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:53,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2054020973, now seen corresponding path program 1 times [2021-11-06 16:52:53,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:53,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533611842] [2021-11-06 16:52:53,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:53,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:53,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:53,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533611842] [2021-11-06 16:52:53,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533611842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:53,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:53,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:52:53,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392736392] [2021-11-06 16:52:53,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:53,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:53,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:53,446 INFO L87 Difference]: Start difference. First operand 25671 states and 35483 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-11-06 16:52:54,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:54,121 INFO L93 Difference]: Finished difference Result 66174 states and 91506 transitions. [2021-11-06 16:52:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:54,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 148 [2021-11-06 16:52:54,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:54,187 INFO L225 Difference]: With dead ends: 66174 [2021-11-06 16:52:54,188 INFO L226 Difference]: Without dead ends: 40586 [2021-11-06 16:52:54,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:54,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40586 states. [2021-11-06 16:52:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40586 to 39883. [2021-11-06 16:52:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39883 states, 39811 states have (on average 1.3879329833463112) internal successors, (55255), 39882 states have internal predecessors, (55255), 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) [2021-11-06 16:52:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39883 states to 39883 states and 55255 transitions. [2021-11-06 16:52:55,046 INFO L78 Accepts]: Start accepts. Automaton has 39883 states and 55255 transitions. Word has length 148 [2021-11-06 16:52:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:55,047 INFO L470 AbstractCegarLoop]: Abstraction has 39883 states and 55255 transitions. [2021-11-06 16:52:55,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-11-06 16:52:55,047 INFO L276 IsEmpty]: Start isEmpty. Operand 39883 states and 55255 transitions. [2021-11-06 16:52:55,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-06 16:52:55,049 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:55,049 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:55,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 16:52:55,049 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr105ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:55,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:55,050 INFO L85 PathProgramCache]: Analyzing trace with hash 134378100, now seen corresponding path program 1 times [2021-11-06 16:52:55,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:55,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630730293] [2021-11-06 16:52:55,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:55,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:52:55,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:55,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630730293] [2021-11-06 16:52:55,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630730293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:55,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:55,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:52:55,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966784000] [2021-11-06 16:52:55,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:55,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:55,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:55,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:55,136 INFO L87 Difference]: Start difference. First operand 39883 states and 55255 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-11-06 16:52:55,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:55,926 INFO L93 Difference]: Finished difference Result 98165 states and 136081 transitions. [2021-11-06 16:52:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:55,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 150 [2021-11-06 16:52:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:56,019 INFO L225 Difference]: With dead ends: 98165 [2021-11-06 16:52:56,019 INFO L226 Difference]: Without dead ends: 58365 [2021-11-06 16:52:56,071 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:56,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58365 states. [2021-11-06 16:52:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58365 to 57699. [2021-11-06 16:52:57,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57699 states, 57627 states have (on average 1.3897478612455967) internal successors, (80087), 57698 states have internal predecessors, (80087), 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) [2021-11-06 16:52:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57699 states to 57699 states and 80087 transitions. [2021-11-06 16:52:57,312 INFO L78 Accepts]: Start accepts. Automaton has 57699 states and 80087 transitions. Word has length 150 [2021-11-06 16:52:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:52:57,314 INFO L470 AbstractCegarLoop]: Abstraction has 57699 states and 80087 transitions. [2021-11-06 16:52:57,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-11-06 16:52:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 57699 states and 80087 transitions. [2021-11-06 16:52:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-06 16:52:57,323 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:52:57,324 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:52:57,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 16:52:57,324 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:52:57,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:52:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1701321641, now seen corresponding path program 1 times [2021-11-06 16:52:57,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:52:57,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052112749] [2021-11-06 16:52:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:52:57,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:52:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:52:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 16:52:57,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:52:57,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052112749] [2021-11-06 16:52:57,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052112749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:52:57,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:52:57,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:52:57,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303664484] [2021-11-06 16:52:57,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:52:57,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:52:57,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:52:57,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:57,420 INFO L87 Difference]: Start difference. First operand 57699 states and 80087 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-11-06 16:52:58,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:52:58,647 INFO L93 Difference]: Finished difference Result 57699 states and 80087 transitions. [2021-11-06 16:52:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:52:58,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 160 [2021-11-06 16:52:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:52:58,745 INFO L225 Difference]: With dead ends: 57699 [2021-11-06 16:52:58,745 INFO L226 Difference]: Without dead ends: 57057 [2021-11-06 16:52:58,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:52:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57057 states. [2021-11-06 16:52:59,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57057 to 57057. [2021-11-06 16:52:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57057 states, 57033 states have (on average 1.3790086441183174) internal successors, (78649), 57056 states have internal predecessors, (78649), 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) [2021-11-06 16:53:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57057 states to 57057 states and 78649 transitions. [2021-11-06 16:53:00,063 INFO L78 Accepts]: Start accepts. Automaton has 57057 states and 78649 transitions. Word has length 160 [2021-11-06 16:53:00,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:53:00,063 INFO L470 AbstractCegarLoop]: Abstraction has 57057 states and 78649 transitions. [2021-11-06 16:53:00,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-11-06 16:53:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 57057 states and 78649 transitions. [2021-11-06 16:53:00,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-06 16:53:00,102 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:53:00,102 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:53:00,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 16:53:00,102 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:53:00,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:53:00,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1714185597, now seen corresponding path program 1 times [2021-11-06 16:53:00,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:53:00,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631317347] [2021-11-06 16:53:00,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:53:00,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:53:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:53:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 16:53:00,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:53:00,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631317347] [2021-11-06 16:53:00,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631317347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:53:00,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:53:00,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:53:00,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442115508] [2021-11-06 16:53:00,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:53:00,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:53:00,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:53:00,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:53:00,385 INFO L87 Difference]: Start difference. First operand 57057 states and 78649 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-06 16:53:01,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:53:01,442 INFO L93 Difference]: Finished difference Result 114063 states and 157263 transitions. [2021-11-06 16:53:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:53:01,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 211 [2021-11-06 16:53:01,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:53:01,547 INFO L225 Difference]: With dead ends: 114063 [2021-11-06 16:53:01,547 INFO L226 Difference]: Without dead ends: 57089 [2021-11-06 16:53:01,615 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:53:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57089 states. [2021-11-06 16:53:02,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57089 to 57089. [2021-11-06 16:53:02,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57089 states, 57065 states have (on average 1.3787961096994654) internal successors, (78681), 57088 states have internal predecessors, (78681), 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) [2021-11-06 16:53:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57089 states to 57089 states and 78681 transitions. [2021-11-06 16:53:02,881 INFO L78 Accepts]: Start accepts. Automaton has 57089 states and 78681 transitions. Word has length 211 [2021-11-06 16:53:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:53:02,882 INFO L470 AbstractCegarLoop]: Abstraction has 57089 states and 78681 transitions. [2021-11-06 16:53:02,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-06 16:53:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 57089 states and 78681 transitions. [2021-11-06 16:53:02,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-06 16:53:02,912 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:53:02,913 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:53:02,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 16:53:02,913 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:53:02,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:53:02,913 INFO L85 PathProgramCache]: Analyzing trace with hash -327400187, now seen corresponding path program 1 times [2021-11-06 16:53:02,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:53:02,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646270489] [2021-11-06 16:53:02,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:53:02,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:53:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:53:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 16:53:03,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:53:03,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646270489] [2021-11-06 16:53:03,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646270489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:53:03,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:53:03,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 16:53:03,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566154717] [2021-11-06 16:53:03,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 16:53:03,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:53:03,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 16:53:03,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 16:53:03,221 INFO L87 Difference]: Start difference. First operand 57089 states and 78681 transitions. Second operand has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 7 states have internal predecessors, (205), 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) [2021-11-06 16:53:11,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:53:11,708 INFO L93 Difference]: Finished difference Result 356941 states and 503173 transitions. [2021-11-06 16:53:11,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-06 16:53:11,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 7 states have internal predecessors, (205), 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 211 [2021-11-06 16:53:11,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:53:12,539 INFO L225 Difference]: With dead ends: 356941 [2021-11-06 16:53:12,540 INFO L226 Difference]: Without dead ends: 299935 [2021-11-06 16:53:12,662 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2021-11-06 16:53:12,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299935 states. [2021-11-06 16:53:17,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299935 to 59009. [2021-11-06 16:53:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59009 states, 58985 states have (on average 1.3664660506908537) internal successors, (80601), 59008 states have internal predecessors, (80601), 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) [2021-11-06 16:53:17,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59009 states to 59009 states and 80601 transitions. [2021-11-06 16:53:17,533 INFO L78 Accepts]: Start accepts. Automaton has 59009 states and 80601 transitions. Word has length 211 [2021-11-06 16:53:17,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:53:17,534 INFO L470 AbstractCegarLoop]: Abstraction has 59009 states and 80601 transitions. [2021-11-06 16:53:17,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 7 states have internal predecessors, (205), 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) [2021-11-06 16:53:17,534 INFO L276 IsEmpty]: Start isEmpty. Operand 59009 states and 80601 transitions. [2021-11-06 16:53:17,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-06 16:53:17,566 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:53:17,566 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:53:17,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 16:53:17,566 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 128 more)] === [2021-11-06 16:53:17,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:53:17,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1741584315, now seen corresponding path program 1 times [2021-11-06 16:53:17,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:53:17,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77462629] [2021-11-06 16:53:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:53:17,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:53:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:53:17,822 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 16:53:17,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:53:17,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77462629] [2021-11-06 16:53:17,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77462629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:53:17,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:53:17,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-06 16:53:17,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073242179] [2021-11-06 16:53:17,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-06 16:53:17,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:53:17,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-06 16:53:17,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-06 16:53:17,826 INFO L87 Difference]: Start difference. First operand 59009 states and 80601 transitions. Second operand has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 states have internal predecessors, (205), 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)