./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 19:14:31,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 19:14:31,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 19:14:31,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 19:14:31,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 19:14:31,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 19:14:31,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 19:14:31,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 19:14:31,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 19:14:31,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 19:14:31,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 19:14:31,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 19:14:31,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 19:14:31,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 19:14:31,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 19:14:31,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 19:14:31,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 19:14:31,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 19:14:31,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 19:14:31,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 19:14:31,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 19:14:31,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 19:14:31,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 19:14:31,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 19:14:31,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 19:14:31,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 19:14:31,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 19:14:31,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 19:14:31,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 19:14:31,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 19:14:31,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 19:14:31,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 19:14:31,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 19:14:31,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 19:14:31,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 19:14:31,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 19:14:31,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 19:14:31,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 19:14:31,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 19:14:31,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 19:14:31,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 19:14:31,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 19:14:31,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 19:14:31,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 19:14:31,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 19:14:31,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 19:14:31,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 19:14:31,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 19:14:31,690 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 19:14:31,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 19:14:31,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 19:14:31,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 19:14:31,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 19:14:31,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 19:14:31,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 19:14:31,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 19:14:31,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 19:14:31,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 19:14:31,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 19:14:31,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 19:14:31,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 19:14:31,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 19:14:31,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 19:14:31,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 19:14:31,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 19:14:31,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 19:14:31,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 19:14:31,693 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 19:14:31,694 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 19:14:31,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 19:14:31,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 19:14:31,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2021-11-02 19:14:31,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 19:14:31,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 19:14:31,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 19:14:31,908 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 19:14:31,908 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 19:14:31,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-02 19:14:31,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4489901d/6f4a776ed6c24e6682af38b76132b319/FLAGa0ecb9121 [2021-11-02 19:14:32,631 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 19:14:32,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-02 19:14:32,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4489901d/6f4a776ed6c24e6682af38b76132b319/FLAGa0ecb9121 [2021-11-02 19:14:33,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4489901d/6f4a776ed6c24e6682af38b76132b319 [2021-11-02 19:14:33,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 19:14:33,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 19:14:33,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 19:14:33,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 19:14:33,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 19:14:33,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:14:33" (1/1) ... [2021-11-02 19:14:33,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f8616d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:33, skipping insertion in model container [2021-11-02 19:14:33,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:14:33" (1/1) ... [2021-11-02 19:14:33,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 19:14:33,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 19:14:33,434 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-11-02 19:14:33,434 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-11-02 19:14:33,760 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-11-02 19:14:35,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 19:14:35,110 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 19:14:35,184 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-11-02 19:14:35,184 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-11-02 19:14:35,190 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-11-02 19:14:35,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 19:14:35,522 INFO L208 MainTranslator]: Completed translation [2021-11-02 19:14:35,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35 WrapperNode [2021-11-02 19:14:35,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 19:14:35,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 19:14:35,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 19:14:35,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 19:14:35,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:35,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:36,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 19:14:36,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 19:14:36,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 19:14:36,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 19:14:36,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:36,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:36,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:36,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:37,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:37,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:37,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:37,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 19:14:37,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 19:14:37,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 19:14:37,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 19:14:37,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (1/1) ... [2021-11-02 19:14:37,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 19:14:37,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 19:14:37,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 19:14:37,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 19:14:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 19:14:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 19:14:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-02 19:14:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 19:14:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 19:14:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 19:14:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 19:14:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 19:14:37,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 19:14:37,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 19:14:37,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 19:14:37,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 19:14:41,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 19:14:41,394 INFO L299 CfgBuilder]: Removed 7639 assume(true) statements. [2021-11-02 19:14:41,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:14:41 BoogieIcfgContainer [2021-11-02 19:14:41,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 19:14:41,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 19:14:41,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 19:14:41,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 19:14:41,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:14:33" (1/3) ... [2021-11-02 19:14:41,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac6946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:14:41, skipping insertion in model container [2021-11-02 19:14:41,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:14:35" (2/3) ... [2021-11-02 19:14:41,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac6946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:14:41, skipping insertion in model container [2021-11-02 19:14:41,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:14:41" (3/3) ... [2021-11-02 19:14:41,408 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-02 19:14:41,412 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 19:14:41,412 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-02 19:14:41,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 19:14:41,468 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 19:14:41,468 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-02 19:14:41,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 5954 states, 5936 states have (on average 1.2784703504043127) internal successors, (7589), 5953 states have internal predecessors, (7589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:14:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-02 19:14:41,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:14:41,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 19:14:41,551 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-02 19:14:41,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:14:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash 108145079, now seen corresponding path program 1 times [2021-11-02 19:14:41,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:14:41,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763416041] [2021-11-02 19:14:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:14:41,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:14:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:14:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 19:14:41,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:14:41,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763416041] [2021-11-02 19:14:41,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763416041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:14:41,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:14:41,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:14:41,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390886853] [2021-11-02 19:14:41,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:14:41,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:14:41,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:14:41,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:14:41,982 INFO L87 Difference]: Start difference. First operand has 5954 states, 5936 states have (on average 1.2784703504043127) internal successors, (7589), 5953 states have internal predecessors, (7589), 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 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:14:52,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:14:52,151 INFO L93 Difference]: Finished difference Result 11904 states and 15173 transitions. [2021-11-02 19:14:52,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 19:14:52,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2021-11-02 19:14:52,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:14:52,187 INFO L225 Difference]: With dead ends: 11904 [2021-11-02 19:14:52,188 INFO L226 Difference]: Without dead ends: 5898 [2021-11-02 19:14:52,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:14:52,212 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 7510 mSDsCounter, 0 mSdLazyCounter, 14921 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7889.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 14921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9676.61ms IncrementalHoareTripleChecker+Time [2021-11-02 19:14:52,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 14921 Unknown, 0 Unchecked, 37.05ms Time], IncrementalHoareTripleChecker [0 Valid, 14921 Invalid, 0 Unknown, 0 Unchecked, 9676.61ms Time] [2021-11-02 19:14:52,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2021-11-02 19:14:52,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5898. [2021-11-02 19:14:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5898 states, 5881 states have (on average 1.25896956299949) internal successors, (7404), 5897 states have internal predecessors, (7404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:14:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 7404 transitions. [2021-11-02 19:14:52,405 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 7404 transitions. Word has length 41 [2021-11-02 19:14:52,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:14:52,405 INFO L470 AbstractCegarLoop]: Abstraction has 5898 states and 7404 transitions. [2021-11-02 19:14:52,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:14:52,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 7404 transitions. [2021-11-02 19:14:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-02 19:14:52,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:14:52,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 19:14:52,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 19:14:52,412 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-02 19:14:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:14:52,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1763457511, now seen corresponding path program 1 times [2021-11-02 19:14:52,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:14:52,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183291413] [2021-11-02 19:14:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:14:52,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:14:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:14:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 19:14:52,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:14:52,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183291413] [2021-11-02 19:14:52,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183291413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:14:52,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:14:52,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:14:52,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551556328] [2021-11-02 19:14:52,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 19:14:52,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:14:52,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 19:14:52,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 19:14:52,612 INFO L87 Difference]: Start difference. First operand 5898 states and 7404 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:15:13,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:15:13,992 INFO L93 Difference]: Finished difference Result 27512 states and 34397 transitions. [2021-11-02 19:15:13,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 19:15:13,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-02 19:15:13,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:15:14,061 INFO L225 Difference]: With dead ends: 27512 [2021-11-02 19:15:14,061 INFO L226 Difference]: Without dead ends: 21650 [2021-11-02 19:15:14,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 19:15:14,077 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 13435 mSDsluCounter, 15099 mSDsCounter, 0 mSdLazyCounter, 35018 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16762.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13435 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.98ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 35018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20255.32ms IncrementalHoareTripleChecker+Time [2021-11-02 19:15:14,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13435 Valid, 0 Invalid, 35029 Unknown, 0 Unchecked, 66.98ms Time], IncrementalHoareTripleChecker [11 Valid, 35018 Invalid, 0 Unknown, 0 Unchecked, 20255.32ms Time] [2021-11-02 19:15:14,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21650 states. [2021-11-02 19:15:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21650 to 10920. [2021-11-02 19:15:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10920 states, 10903 states have (on average 1.2525910299917453) internal successors, (13657), 10919 states have internal predecessors, (13657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:15:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10920 states to 10920 states and 13657 transitions. [2021-11-02 19:15:14,390 INFO L78 Accepts]: Start accepts. Automaton has 10920 states and 13657 transitions. Word has length 42 [2021-11-02 19:15:14,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:15:14,391 INFO L470 AbstractCegarLoop]: Abstraction has 10920 states and 13657 transitions. [2021-11-02 19:15:14,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:15:14,392 INFO L276 IsEmpty]: Start isEmpty. Operand 10920 states and 13657 transitions. [2021-11-02 19:15:14,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-02 19:15:14,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:15:14,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 19:15:14,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 19:15:14,400 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-02 19:15:14,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:15:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash -31136546, now seen corresponding path program 1 times [2021-11-02 19:15:14,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:15:14,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51013486] [2021-11-02 19:15:14,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:15:14,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:15:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:15:14,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 19:15:14,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:15:14,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51013486] [2021-11-02 19:15:14,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51013486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:15:14,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:15:14,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:15:14,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143414200] [2021-11-02 19:15:14,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 19:15:14,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:15:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 19:15:14,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 19:15:14,572 INFO L87 Difference]: Start difference. First operand 10920 states and 13657 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:15:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:15:36,269 INFO L93 Difference]: Finished difference Result 52622 states and 65664 transitions. [2021-11-02 19:15:36,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 19:15:36,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2021-11-02 19:15:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:15:36,383 INFO L225 Difference]: With dead ends: 52622 [2021-11-02 19:15:36,383 INFO L226 Difference]: Without dead ends: 41738 [2021-11-02 19:15:36,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.63ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 19:15:36,429 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 19651 mSDsluCounter, 14725 mSDsCounter, 0 mSdLazyCounter, 28425 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16900.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19651 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.00ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 28425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20401.79ms IncrementalHoareTripleChecker+Time [2021-11-02 19:15:36,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19651 Valid, 0 Invalid, 28438 Unknown, 0 Unchecked, 69.00ms Time], IncrementalHoareTripleChecker [13 Valid, 28425 Invalid, 0 Unknown, 0 Unchecked, 20401.79ms Time] [2021-11-02 19:15:36,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41738 states. [2021-11-02 19:15:37,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41738 to 21570. [2021-11-02 19:15:37,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21570 states, 21553 states have (on average 1.2517514963114185) internal successors, (26979), 21569 states have internal predecessors, (26979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:15:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21570 states to 21570 states and 26979 transitions. [2021-11-02 19:15:37,093 INFO L78 Accepts]: Start accepts. Automaton has 21570 states and 26979 transitions. Word has length 43 [2021-11-02 19:15:37,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:15:37,095 INFO L470 AbstractCegarLoop]: Abstraction has 21570 states and 26979 transitions. [2021-11-02 19:15:37,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:15:37,096 INFO L276 IsEmpty]: Start isEmpty. Operand 21570 states and 26979 transitions. [2021-11-02 19:15:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-02 19:15:37,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:15:37,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 19:15:37,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 19:15:37,101 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-02 19:15:37,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:15:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2131206515, now seen corresponding path program 1 times [2021-11-02 19:15:37,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:15:37,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874379017] [2021-11-02 19:15:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:15:37,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:15:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:15:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 19:15:37,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:15:37,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874379017] [2021-11-02 19:15:37,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874379017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:15:37,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:15:37,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:15:37,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109876296] [2021-11-02 19:15:37,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 19:15:37,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:15:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 19:15:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 19:15:37,239 INFO L87 Difference]: Start difference. First operand 21570 states and 26979 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:15:59,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:15:59,263 INFO L93 Difference]: Finished difference Result 104472 states and 130387 transitions. [2021-11-02 19:15:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 19:15:59,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-02 19:15:59,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:15:59,512 INFO L225 Difference]: With dead ends: 104472 [2021-11-02 19:15:59,513 INFO L226 Difference]: Without dead ends: 82938 [2021-11-02 19:15:59,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.17ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 19:15:59,581 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 19657 mSDsluCounter, 14725 mSDsCounter, 0 mSdLazyCounter, 28424 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16633.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19657 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.09ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 28424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19993.62ms IncrementalHoareTripleChecker+Time [2021-11-02 19:15:59,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19657 Valid, 0 Invalid, 28437 Unknown, 0 Unchecked, 63.09ms Time], IncrementalHoareTripleChecker [13 Valid, 28424 Invalid, 0 Unknown, 0 Unchecked, 19993.62ms Time] [2021-11-02 19:15:59,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82938 states. [2021-11-02 19:16:01,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82938 to 42673. [2021-11-02 19:16:01,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42673 states, 42656 states have (on average 1.2508205176294074) internal successors, (53355), 42672 states have internal predecessors, (53355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:16:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42673 states to 42673 states and 53355 transitions. [2021-11-02 19:16:01,549 INFO L78 Accepts]: Start accepts. Automaton has 42673 states and 53355 transitions. Word has length 44 [2021-11-02 19:16:01,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:16:01,550 INFO L470 AbstractCegarLoop]: Abstraction has 42673 states and 53355 transitions. [2021-11-02 19:16:01,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:16:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand 42673 states and 53355 transitions. [2021-11-02 19:16:01,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-02 19:16:01,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:16:01,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 19:16:01,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 19:16:01,554 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-02 19:16:01,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:16:01,555 INFO L85 PathProgramCache]: Analyzing trace with hash 444365368, now seen corresponding path program 1 times [2021-11-02 19:16:01,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:16:01,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918979190] [2021-11-02 19:16:01,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:16:01,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:16:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:16:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 19:16:01,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:16:01,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918979190] [2021-11-02 19:16:01,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918979190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:16:01,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:16:01,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:16:01,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498855705] [2021-11-02 19:16:01,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 19:16:01,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:16:01,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 19:16:01,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 19:16:01,654 INFO L87 Difference]: Start difference. First operand 42673 states and 53355 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:16:27,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:16:27,605 INFO L93 Difference]: Finished difference Result 207577 states and 259021 transitions. [2021-11-02 19:16:27,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 19:16:27,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-02 19:16:27,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:16:28,017 INFO L225 Difference]: With dead ends: 207577 [2021-11-02 19:16:28,017 INFO L226 Difference]: Without dead ends: 164940 [2021-11-02 19:16:28,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 19:16:28,126 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 19663 mSDsluCounter, 14725 mSDsCounter, 0 mSdLazyCounter, 28423 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17717.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19663 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.55ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 28423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21514.56ms IncrementalHoareTripleChecker+Time [2021-11-02 19:16:28,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19663 Valid, 0 Invalid, 28436 Unknown, 0 Unchecked, 71.55ms Time], IncrementalHoareTripleChecker [13 Valid, 28423 Invalid, 0 Unknown, 0 Unchecked, 21514.56ms Time] [2021-11-02 19:16:28,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164940 states. [2021-11-02 19:16:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164940 to 84484. [2021-11-02 19:16:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84484 states, 84467 states have (on average 1.2498253755904674) internal successors, (105569), 84483 states have internal predecessors, (105569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:16:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84484 states to 84484 states and 105569 transitions. [2021-11-02 19:16:31,963 INFO L78 Accepts]: Start accepts. Automaton has 84484 states and 105569 transitions. Word has length 45 [2021-11-02 19:16:31,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:16:31,963 INFO L470 AbstractCegarLoop]: Abstraction has 84484 states and 105569 transitions. [2021-11-02 19:16:31,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:16:31,964 INFO L276 IsEmpty]: Start isEmpty. Operand 84484 states and 105569 transitions. [2021-11-02 19:16:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-02 19:16:31,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:16:31,969 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-02 19:16:31,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 19:16:31,969 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-02 19:16:31,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:16:31,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1972261956, now seen corresponding path program 1 times [2021-11-02 19:16:31,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:16:31,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896610871] [2021-11-02 19:16:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:16:31,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:16:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:16:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 19:16:32,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:16:32,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896610871] [2021-11-02 19:16:32,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896610871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:16:32,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:16:32,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 19:16:32,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605926124] [2021-11-02 19:16:32,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 19:16:32,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:16:32,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 19:16:32,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 19:16:32,095 INFO L87 Difference]: Start difference. First operand 84484 states and 105569 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:17:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:17:07,618 INFO L93 Difference]: Finished difference Result 292052 states and 364577 transitions. [2021-11-02 19:17:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 19:17:07,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-02 19:17:07,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:17:08,315 INFO L225 Difference]: With dead ends: 292052 [2021-11-02 19:17:08,325 INFO L226 Difference]: Without dead ends: 207604 [2021-11-02 19:17:08,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.86ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-02 19:17:08,501 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 32162 mSDsluCounter, 29983 mSDsCounter, 0 mSdLazyCounter, 44561 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24043.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32162 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 108.84ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 44561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28747.25ms IncrementalHoareTripleChecker+Time [2021-11-02 19:17:08,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32162 Valid, 0 Invalid, 44593 Unknown, 0 Unchecked, 108.84ms Time], IncrementalHoareTripleChecker [32 Valid, 44561 Invalid, 0 Unknown, 0 Unchecked, 28747.25ms Time] [2021-11-02 19:17:08,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207604 states. [2021-11-02 19:17:12,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207604 to 84524. [2021-11-02 19:17:12,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84524 states, 84507 states have (on average 1.2497071248535625) internal successors, (105609), 84523 states have internal predecessors, (105609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:17:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84524 states to 84524 states and 105609 transitions. [2021-11-02 19:17:13,101 INFO L78 Accepts]: Start accepts. Automaton has 84524 states and 105609 transitions. Word has length 50 [2021-11-02 19:17:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:17:13,101 INFO L470 AbstractCegarLoop]: Abstraction has 84524 states and 105609 transitions. [2021-11-02 19:17:13,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:17:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 84524 states and 105609 transitions. [2021-11-02 19:17:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-02 19:17:13,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:17:13,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 19:17:13,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 19:17:13,106 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-02 19:17:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:17:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1655743216, now seen corresponding path program 1 times [2021-11-02 19:17:13,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:17:13,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456993102] [2021-11-02 19:17:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:17:13,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:17:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:17:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 19:17:13,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:17:13,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456993102] [2021-11-02 19:17:13,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456993102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:17:13,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:17:13,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:17:13,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555562671] [2021-11-02 19:17:13,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:17:13,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:17:13,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:17:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:17:13,196 INFO L87 Difference]: Start difference. First operand 84524 states and 105609 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:17:29,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:17:29,541 INFO L93 Difference]: Finished difference Result 213552 states and 266273 transitions. [2021-11-02 19:17:29,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 19:17:29,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-11-02 19:17:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:17:30,101 INFO L225 Difference]: With dead ends: 213552 [2021-11-02 19:17:30,102 INFO L226 Difference]: Without dead ends: 129064 [2021-11-02 19:17:30,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:17:30,335 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4332 mSDsluCounter, 7158 mSDsCounter, 0 mSdLazyCounter, 15727 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8920.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4332 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.45ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 15727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10642.47ms IncrementalHoareTripleChecker+Time [2021-11-02 19:17:30,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4332 Valid, 0 Invalid, 15737 Unknown, 0 Unchecked, 23.45ms Time], IncrementalHoareTripleChecker [10 Valid, 15727 Invalid, 0 Unknown, 0 Unchecked, 10642.47ms Time] [2021-11-02 19:17:30,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129064 states. [2021-11-02 19:17:35,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129064 to 114164. [2021-11-02 19:17:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114164 states, 114147 states have (on average 1.248714377075175) internal successors, (142537), 114163 states have internal predecessors, (142537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:17:36,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114164 states to 114164 states and 142537 transitions. [2021-11-02 19:17:36,033 INFO L78 Accepts]: Start accepts. Automaton has 114164 states and 142537 transitions. Word has length 51 [2021-11-02 19:17:36,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:17:36,034 INFO L470 AbstractCegarLoop]: Abstraction has 114164 states and 142537 transitions. [2021-11-02 19:17:36,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 19:17:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 114164 states and 142537 transitions. [2021-11-02 19:17:36,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-02 19:17:36,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:17:36,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 19:17:36,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 19:17:36,036 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-02 19:17:36,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:17:36,037 INFO L85 PathProgramCache]: Analyzing trace with hash -688759008, now seen corresponding path program 1 times [2021-11-02 19:17:36,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:17:36,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715032951] [2021-11-02 19:17:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:17:36,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:17:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:17:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 19:17:36,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:17:36,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715032951] [2021-11-02 19:17:36,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715032951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:17:36,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:17:36,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:17:36,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531913386] [2021-11-02 19:17:36,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:17:36,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:17:36,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:17:36,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:17:36,118 INFO L87 Difference]: Start difference. First operand 114164 states and 142537 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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)