./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.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-43_2a-drivers--net--ethernet--amd--pcnet32.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 5c239738c5bcaa6d0932e9e226032e983634dc69e8293d25e6d6f15c626fb290 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:16:11,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:16:11,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:16:11,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:16:11,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:16:11,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:16:11,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:16:11,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:16:11,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:16:11,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:16:11,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:16:11,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:16:11,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:16:11,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:16:11,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:16:11,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:16:11,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:16:11,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:16:11,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:16:11,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:16:11,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:16:11,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:16:11,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:16:11,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:16:11,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:16:11,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:16:11,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:16:11,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:16:11,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:16:11,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:16:11,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:16:11,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:16:11,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:16:11,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:16:11,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:16:11,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:16:11,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:16:11,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:16:11,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:16:11,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:16:11,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:16:11,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:16:11,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:16:11,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:16:11,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:16:11,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:16:11,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:16:11,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:16:11,410 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:16:11,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:16:11,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:16:11,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:16:11,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:16:11,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:16:11,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:16:11,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:16:11,412 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:16:11,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:16:11,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:16:11,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:16:11,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:16:11,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:16:11,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:16:11,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:16:11,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:16:11,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:16:11,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:16:11,414 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:16:11,414 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:16:11,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:16:11,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:16:11,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c239738c5bcaa6d0932e9e226032e983634dc69e8293d25e6d6f15c626fb290 [2021-11-06 17:16:11,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:16:11,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:16:11,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:16:11,664 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:16:11,665 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:16:11,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-06 17:16:11,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d8f11cc/338bd4262b2a42dbaf6d73936a68f313/FLAGe5444e4b0 [2021-11-06 17:16:12,494 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:16:12,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-06 17:16:12,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d8f11cc/338bd4262b2a42dbaf6d73936a68f313/FLAGe5444e4b0 [2021-11-06 17:16:13,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d8f11cc/338bd4262b2a42dbaf6d73936a68f313 [2021-11-06 17:16:13,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:16:13,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:16:13,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:16:13,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:16:13,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:16:13,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:16:13" (1/1) ... [2021-11-06 17:16:13,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1708f787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:13, skipping insertion in model container [2021-11-06 17:16:13,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:16:13" (1/1) ... [2021-11-06 17:16:13,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:16:13,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:16:15,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i[329649,329662] [2021-11-06 17:16:15,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:16:15,626 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:16:16,020 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i[329649,329662] [2021-11-06 17:16:16,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:16:16,381 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:16:16,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16 WrapperNode [2021-11-06 17:16:16,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:16:16,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:16:16,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:16:16,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:16:16,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:16,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:18,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:16:18,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:16:18,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:16:18,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:16:18,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:18,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:18,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:18,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:19,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:20,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:20,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:20,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:16:20,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:16:20,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:16:20,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:16:20,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (1/1) ... [2021-11-06 17:16:20,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:16:20,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:16:20,509 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 17:16:20,519 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 17:16:20,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:16:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:16:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 17:16:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:16:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:16:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:16:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:16:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:16:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:16:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:16:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:16:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:16:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-06 17:16:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:16:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 17:16:20,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:16:20,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:16:20,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:17:08,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:17:08,798 INFO L299 CfgBuilder]: Removed 16101 assume(true) statements. [2021-11-06 17:17:08,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:17:08 BoogieIcfgContainer [2021-11-06 17:17:08,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:17:08,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:17:08,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:17:08,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:17:08,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:16:13" (1/3) ... [2021-11-06 17:17:08,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179728ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:17:08, skipping insertion in model container [2021-11-06 17:17:08,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:16:16" (2/3) ... [2021-11-06 17:17:08,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179728ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:17:08, skipping insertion in model container [2021-11-06 17:17:08,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:17:08" (3/3) ... [2021-11-06 17:17:08,819 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-06 17:17:08,824 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:17:08,824 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-06 17:17:09,094 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:17:09,100 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 17:17:09,101 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-06 17:17:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 9912 states, 9882 states have (on average 1.321291236591783) internal successors, (13057), 9911 states have internal predecessors, (13057), 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 17:17:09,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-06 17:17:09,284 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:09,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:09,286 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:09,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash -299569302, now seen corresponding path program 1 times [2021-11-06 17:17:09,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:09,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140023821] [2021-11-06 17:17:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:09,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:09,986 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 17:17:09,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:09,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140023821] [2021-11-06 17:17:09,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140023821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:17:09,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:17:09,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:17:09,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749501162] [2021-11-06 17:17:09,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:17:09,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:17:10,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:17:10,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:17:10,038 INFO L87 Difference]: Start difference. First operand has 9912 states, 9882 states have (on average 1.321291236591783) internal successors, (13057), 9911 states have internal predecessors, (13057), 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 95.5) internal successors, (191), 2 states have internal predecessors, (191), 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 17:17:10,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:17:10,313 INFO L93 Difference]: Finished difference Result 19802 states and 26085 transitions. [2021-11-06 17:17:10,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:17:10,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 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 191 [2021-11-06 17:17:10,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:17:10,383 INFO L225 Difference]: With dead ends: 19802 [2021-11-06 17:17:10,384 INFO L226 Difference]: Without dead ends: 9802 [2021-11-06 17:17:10,412 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 17:17:10,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9802 states. [2021-11-06 17:17:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9802 to 9802. [2021-11-06 17:17:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9802 states, 9773 states have (on average 1.309628568505065) internal successors, (12799), 9801 states have internal predecessors, (12799), 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 17:17:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9802 states to 9802 states and 12799 transitions. [2021-11-06 17:17:10,756 INFO L78 Accepts]: Start accepts. Automaton has 9802 states and 12799 transitions. Word has length 191 [2021-11-06 17:17:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:17:10,756 INFO L470 AbstractCegarLoop]: Abstraction has 9802 states and 12799 transitions. [2021-11-06 17:17:10,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 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 17:17:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 9802 states and 12799 transitions. [2021-11-06 17:17:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-06 17:17:10,769 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:10,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:10,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:17:10,773 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:10,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:10,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1756658342, now seen corresponding path program 1 times [2021-11-06 17:17:10,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:10,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243763117] [2021-11-06 17:17:10,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:10,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:17:11,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:11,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243763117] [2021-11-06 17:17:11,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243763117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:17:11,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:17:11,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:17:11,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288126578] [2021-11-06 17:17:11,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:17:11,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:17:11,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:17:11,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:17:11,260 INFO L87 Difference]: Start difference. First operand 9802 states and 12799 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 17:17:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:17:12,155 INFO L93 Difference]: Finished difference Result 25781 states and 33726 transitions. [2021-11-06 17:17:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:17:12,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 191 [2021-11-06 17:17:12,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:17:12,228 INFO L225 Difference]: With dead ends: 25781 [2021-11-06 17:17:12,229 INFO L226 Difference]: Without dead ends: 16127 [2021-11-06 17:17:12,252 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 17:17:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16127 states. [2021-11-06 17:17:12,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16127 to 15267. [2021-11-06 17:17:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15267 states, 15238 states have (on average 1.3123113269457933) internal successors, (19997), 15266 states have internal predecessors, (19997), 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 17:17:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15267 states to 15267 states and 19997 transitions. [2021-11-06 17:17:12,816 INFO L78 Accepts]: Start accepts. Automaton has 15267 states and 19997 transitions. Word has length 191 [2021-11-06 17:17:12,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:17:12,817 INFO L470 AbstractCegarLoop]: Abstraction has 15267 states and 19997 transitions. [2021-11-06 17:17:12,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 17:17:12,818 INFO L276 IsEmpty]: Start isEmpty. Operand 15267 states and 19997 transitions. [2021-11-06 17:17:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-06 17:17:12,824 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:12,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:12,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:17:12,825 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:12,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:12,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1578754068, now seen corresponding path program 1 times [2021-11-06 17:17:12,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:12,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972494070] [2021-11-06 17:17:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:12,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:13,201 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 17:17:13,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:13,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972494070] [2021-11-06 17:17:13,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972494070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:17:13,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:17:13,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:17:13,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266017534] [2021-11-06 17:17:13,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:17:13,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:17:13,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:17:13,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:17:13,209 INFO L87 Difference]: Start difference. First operand 15267 states and 19997 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 17:17:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:17:14,113 INFO L93 Difference]: Finished difference Result 42281 states and 55406 transitions. [2021-11-06 17:17:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:17:14,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 196 [2021-11-06 17:17:14,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:17:14,206 INFO L225 Difference]: With dead ends: 42281 [2021-11-06 17:17:14,207 INFO L226 Difference]: Without dead ends: 27162 [2021-11-06 17:17:14,336 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 17:17:14,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27162 states. [2021-11-06 17:17:14,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27162 to 27126. [2021-11-06 17:17:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27126 states, 27097 states have (on average 1.3127652507657674) internal successors, (35572), 27125 states have internal predecessors, (35572), 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 17:17:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27126 states to 27126 states and 35572 transitions. [2021-11-06 17:17:15,071 INFO L78 Accepts]: Start accepts. Automaton has 27126 states and 35572 transitions. Word has length 196 [2021-11-06 17:17:15,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:17:15,072 INFO L470 AbstractCegarLoop]: Abstraction has 27126 states and 35572 transitions. [2021-11-06 17:17:15,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 17:17:15,073 INFO L276 IsEmpty]: Start isEmpty. Operand 27126 states and 35572 transitions. [2021-11-06 17:17:15,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-06 17:17:15,086 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:15,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:15,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:17:15,087 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:15,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1766880080, now seen corresponding path program 1 times [2021-11-06 17:17:15,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:15,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118433264] [2021-11-06 17:17:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:15,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:15,436 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 17:17:15,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:15,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118433264] [2021-11-06 17:17:15,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118433264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:17:15,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:17:15,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:17:15,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385447744] [2021-11-06 17:17:15,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:17:15,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:17:15,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:17:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:17:15,444 INFO L87 Difference]: Start difference. First operand 27126 states and 35572 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 17:17:16,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:17:16,452 INFO L93 Difference]: Finished difference Result 66358 states and 86977 transitions. [2021-11-06 17:17:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:17:16,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 237 [2021-11-06 17:17:16,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:17:16,574 INFO L225 Difference]: With dead ends: 66358 [2021-11-06 17:17:16,574 INFO L226 Difference]: Without dead ends: 39380 [2021-11-06 17:17:16,647 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 17:17:16,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39380 states. [2021-11-06 17:17:17,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39380 to 39320. [2021-11-06 17:17:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39320 states, 39291 states have (on average 1.3114962714107556) internal successors, (51530), 39319 states have internal predecessors, (51530), 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 17:17:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39320 states to 39320 states and 51530 transitions. [2021-11-06 17:17:17,746 INFO L78 Accepts]: Start accepts. Automaton has 39320 states and 51530 transitions. Word has length 237 [2021-11-06 17:17:17,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:17:17,747 INFO L470 AbstractCegarLoop]: Abstraction has 39320 states and 51530 transitions. [2021-11-06 17:17:17,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 17:17:17,747 INFO L276 IsEmpty]: Start isEmpty. Operand 39320 states and 51530 transitions. [2021-11-06 17:17:17,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-06 17:17:17,763 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:17,764 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:17,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:17:17,764 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:17,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1371265079, now seen corresponding path program 1 times [2021-11-06 17:17:17,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:17,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934623597] [2021-11-06 17:17:17,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:17,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:17:18,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:18,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934623597] [2021-11-06 17:17:18,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934623597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:17:18,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:17:18,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:17:18,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996449918] [2021-11-06 17:17:18,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:17:18,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:17:18,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:17:18,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:17:18,219 INFO L87 Difference]: Start difference. First operand 39320 states and 51530 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 17:17:19,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:17:19,258 INFO L93 Difference]: Finished difference Result 78492 states and 102877 transitions. [2021-11-06 17:17:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:17:19,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 240 [2021-11-06 17:17:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:17:19,373 INFO L225 Difference]: With dead ends: 78492 [2021-11-06 17:17:19,374 INFO L226 Difference]: Without dead ends: 39320 [2021-11-06 17:17:19,449 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 17:17:19,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39320 states. [2021-11-06 17:17:20,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39320 to 39320. [2021-11-06 17:17:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39320 states, 39291 states have (on average 1.311394466926268) internal successors, (51526), 39319 states have internal predecessors, (51526), 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 17:17:20,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39320 states to 39320 states and 51526 transitions. [2021-11-06 17:17:20,664 INFO L78 Accepts]: Start accepts. Automaton has 39320 states and 51526 transitions. Word has length 240 [2021-11-06 17:17:20,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:17:20,665 INFO L470 AbstractCegarLoop]: Abstraction has 39320 states and 51526 transitions. [2021-11-06 17:17:20,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 17:17:20,666 INFO L276 IsEmpty]: Start isEmpty. Operand 39320 states and 51526 transitions. [2021-11-06 17:17:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-06 17:17:20,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:20,681 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:20,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 17:17:20,681 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:20,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2084668555, now seen corresponding path program 1 times [2021-11-06 17:17:20,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:20,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253720976] [2021-11-06 17:17:20,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:20,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:21,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:17:21,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:21,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253720976] [2021-11-06 17:17:21,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253720976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:17:21,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:17:21,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:17:21,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384702036] [2021-11-06 17:17:21,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:17:21,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:17:21,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:17:21,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:17:21,256 INFO L87 Difference]: Start difference. First operand 39320 states and 51526 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 17:17:26,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:17:26,783 INFO L93 Difference]: Finished difference Result 92689 states and 121540 transitions. [2021-11-06 17:17:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:17:26,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 240 [2021-11-06 17:17:26,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:17:26,927 INFO L225 Difference]: With dead ends: 92689 [2021-11-06 17:17:26,927 INFO L226 Difference]: Without dead ends: 53517 [2021-11-06 17:17:27,000 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 17:17:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53517 states. [2021-11-06 17:17:28,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53517 to 53461. [2021-11-06 17:17:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53461 states, 53432 states have (on average 1.3129398113490043) internal successors, (70153), 53460 states have internal predecessors, (70153), 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 17:17:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53461 states to 53461 states and 70153 transitions. [2021-11-06 17:17:28,457 INFO L78 Accepts]: Start accepts. Automaton has 53461 states and 70153 transitions. Word has length 240 [2021-11-06 17:17:28,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:17:28,457 INFO L470 AbstractCegarLoop]: Abstraction has 53461 states and 70153 transitions. [2021-11-06 17:17:28,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 17:17:28,458 INFO L276 IsEmpty]: Start isEmpty. Operand 53461 states and 70153 transitions. [2021-11-06 17:17:28,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-06 17:17:28,477 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:28,477 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:28,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 17:17:28,477 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:28,478 INFO L85 PathProgramCache]: Analyzing trace with hash 994145015, now seen corresponding path program 1 times [2021-11-06 17:17:28,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:28,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597875621] [2021-11-06 17:17:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:28,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-06 17:17:28,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:28,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597875621] [2021-11-06 17:17:28,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597875621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:17:28,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:17:28,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:17:28,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286969327] [2021-11-06 17:17:28,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:17:28,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:17:28,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:17:28,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:17:28,997 INFO L87 Difference]: Start difference. First operand 53461 states and 70153 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 17:17:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:17:31,218 INFO L93 Difference]: Finished difference Result 159691 states and 209499 transitions. [2021-11-06 17:17:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:17:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 240 [2021-11-06 17:17:31,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:17:31,537 INFO L225 Difference]: With dead ends: 159691 [2021-11-06 17:17:31,537 INFO L226 Difference]: Without dead ends: 106378 [2021-11-06 17:17:31,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:17:31,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106378 states. [2021-11-06 17:17:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106378 to 53473. [2021-11-06 17:17:33,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53473 states, 53444 states have (on average 1.3128695456926878) internal successors, (70165), 53472 states have internal predecessors, (70165), 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 17:17:33,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53473 states to 53473 states and 70165 transitions. [2021-11-06 17:17:33,620 INFO L78 Accepts]: Start accepts. Automaton has 53473 states and 70165 transitions. Word has length 240 [2021-11-06 17:17:33,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:17:33,620 INFO L470 AbstractCegarLoop]: Abstraction has 53473 states and 70165 transitions. [2021-11-06 17:17:33,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 17:17:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 53473 states and 70165 transitions. [2021-11-06 17:17:33,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-06 17:17:33,633 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:33,634 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:33,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 17:17:33,634 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:33,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:33,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1366210311, now seen corresponding path program 1 times [2021-11-06 17:17:33,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:33,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514819651] [2021-11-06 17:17:33,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:33,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-06 17:17:34,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:34,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514819651] [2021-11-06 17:17:34,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514819651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:17:34,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:17:34,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:17:34,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362768654] [2021-11-06 17:17:34,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:17:34,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:17:34,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:17:34,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:17:34,467 INFO L87 Difference]: Start difference. First operand 53473 states and 70165 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 17:17:36,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:17:36,553 INFO L93 Difference]: Finished difference Result 106916 states and 140313 transitions. [2021-11-06 17:17:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:17:36,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 241 [2021-11-06 17:17:36,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:17:36,698 INFO L225 Difference]: With dead ends: 106916 [2021-11-06 17:17:36,698 INFO L226 Difference]: Without dead ends: 53487 [2021-11-06 17:17:36,895 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 17:17:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53487 states. [2021-11-06 17:17:38,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53487 to 53487. [2021-11-06 17:17:38,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53487 states, 53458 states have (on average 1.3127876089640464) internal successors, (70179), 53486 states have internal predecessors, (70179), 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 17:17:38,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53487 states to 53487 states and 70179 transitions. [2021-11-06 17:17:38,533 INFO L78 Accepts]: Start accepts. Automaton has 53487 states and 70179 transitions. Word has length 241 [2021-11-06 17:17:38,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:17:38,534 INFO L470 AbstractCegarLoop]: Abstraction has 53487 states and 70179 transitions. [2021-11-06 17:17:38,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 17:17:38,534 INFO L276 IsEmpty]: Start isEmpty. Operand 53487 states and 70179 transitions. [2021-11-06 17:17:38,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-06 17:17:38,546 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:17:38,547 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:38,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 17:17:38,547 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:17:38,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:17:38,548 INFO L85 PathProgramCache]: Analyzing trace with hash 522644981, now seen corresponding path program 1 times [2021-11-06 17:17:38,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:17:38,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72299241] [2021-11-06 17:17:38,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:38,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:17:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:17:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-06 17:17:39,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:17:39,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72299241] [2021-11-06 17:17:39,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72299241] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:17:39,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700968717] [2021-11-06 17:17:39,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:17:39,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:17:39,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:17:39,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:17:39,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 17:23:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:23:43,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 4852 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-06 17:23:43,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:23:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-06 17:23:44,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700968717] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:23:44,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 17:23:44,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-06 17:23:44,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553243819] [2021-11-06 17:23:44,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 17:23:44,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:23:44,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 17:23:44,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 17:23:44,413 INFO L87 Difference]: Start difference. First operand 53487 states and 70179 transitions. Second operand has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 17:23:48,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:23:48,428 INFO L93 Difference]: Finished difference Result 160319 states and 210394 transitions. [2021-11-06 17:23:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 17:23:48,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 255 [2021-11-06 17:23:48,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:23:48,678 INFO L225 Difference]: With dead ends: 160319 [2021-11-06 17:23:48,678 INFO L226 Difference]: Without dead ends: 106877 [2021-11-06 17:23:48,767 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 17:23:48,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106877 states. [2021-11-06 17:23:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106877 to 53507. [2021-11-06 17:23:50,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53507 states, 53478 states have (on average 1.3126706309136467) internal successors, (70199), 53506 states have internal predecessors, (70199), 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 17:23:51,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53507 states to 53507 states and 70199 transitions. [2021-11-06 17:23:51,004 INFO L78 Accepts]: Start accepts. Automaton has 53507 states and 70199 transitions. Word has length 255 [2021-11-06 17:23:51,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:23:51,005 INFO L470 AbstractCegarLoop]: Abstraction has 53507 states and 70199 transitions. [2021-11-06 17:23:51,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 17:23:51,005 INFO L276 IsEmpty]: Start isEmpty. Operand 53507 states and 70199 transitions. [2021-11-06 17:23:51,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-06 17:23:51,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:23:51,018 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:23:51,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-06 17:23:51,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:23:51,236 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:23:51,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:23:51,236 INFO L85 PathProgramCache]: Analyzing trace with hash 637624187, now seen corresponding path program 1 times [2021-11-06 17:23:51,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:23:51,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975327852] [2021-11-06 17:23:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:23:51,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:23:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:23:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-06 17:23:52,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:23:52,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975327852] [2021-11-06 17:23:52,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975327852] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:23:52,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089717172] [2021-11-06 17:23:52,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:23:52,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:23:52,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:23:52,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:23:52,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 17:23:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:23:53,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 4972 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-06 17:23:53,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:23:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-06 17:23:54,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089717172] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:23:54,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 17:23:54,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2021-11-06 17:23:54,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901851550] [2021-11-06 17:23:54,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 17:23:54,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:23:54,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 17:23:54,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-06 17:23:54,990 INFO L87 Difference]: Start difference. First operand 53507 states and 70199 transitions. Second operand has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 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 17:24:03,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:24:03,567 INFO L93 Difference]: Finished difference Result 267116 states and 350541 transitions. [2021-11-06 17:24:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 17:24:03,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 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 275 [2021-11-06 17:24:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:24:04,162 INFO L225 Difference]: With dead ends: 267116 [2021-11-06 17:24:04,162 INFO L226 Difference]: Without dead ends: 213655 [2021-11-06 17:24:04,307 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-06 17:24:04,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213655 states. [2021-11-06 17:24:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213655 to 53527. [2021-11-06 17:24:07,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53527 states, 53498 states have (on average 1.312553740326741) internal successors, (70219), 53526 states have internal predecessors, (70219), 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 17:24:08,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53527 states to 53527 states and 70219 transitions. [2021-11-06 17:24:08,065 INFO L78 Accepts]: Start accepts. Automaton has 53527 states and 70219 transitions. Word has length 275 [2021-11-06 17:24:08,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:24:08,066 INFO L470 AbstractCegarLoop]: Abstraction has 53527 states and 70219 transitions. [2021-11-06 17:24:08,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 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 17:24:08,066 INFO L276 IsEmpty]: Start isEmpty. Operand 53527 states and 70219 transitions. [2021-11-06 17:24:08,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-06 17:24:08,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:24:08,076 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:24:08,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 17:24:08,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-06 17:24:08,286 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-06 17:24:08,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:24:08,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1757367733, now seen corresponding path program 2 times [2021-11-06 17:24:08,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:24:08,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025221238] [2021-11-06 17:24:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:24:08,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:24:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:24:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-06 17:24:09,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:24:09,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025221238] [2021-11-06 17:24:09,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025221238] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:24:09,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830965460] [2021-11-06 17:24:09,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 17:24:09,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:24:09,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:24:09,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:24:09,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process