./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--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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--isdn--gigaset--bas_gigaset.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 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 07:37:49,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 07:37:49,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 07:37:49,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 07:37:49,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 07:37:49,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 07:37:49,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 07:37:49,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 07:37:49,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 07:37:49,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 07:37:49,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 07:37:49,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 07:37:49,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 07:37:49,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 07:37:49,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 07:37:49,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 07:37:49,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 07:37:49,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 07:37:49,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 07:37:49,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 07:37:49,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 07:37:49,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 07:37:49,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 07:37:49,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 07:37:49,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 07:37:49,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 07:37:49,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 07:37:49,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 07:37:49,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 07:37:49,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 07:37:49,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 07:37:49,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 07:37:49,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 07:37:49,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 07:37:49,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 07:37:49,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 07:37:49,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 07:37:49,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 07:37:49,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 07:37:49,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 07:37:49,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 07:37:49,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 07:37:49,602 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 07:37:49,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 07:37:49,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 07:37:49,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 07:37:49,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 07:37:49,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 07:37:49,605 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 07:37:49,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 07:37:49,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 07:37:49,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 07:37:49,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 07:37:49,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 07:37:49,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 07:37:49,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 07:37:49,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 07:37:49,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 07:37:49,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 07:37:49,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 07:37:49,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 07:37:49,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 07:37:49,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 07:37:49,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 07:37:49,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 07:37:49,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 07:37:49,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 07:37:49,608 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 07:37:49,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 07:37:49,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 07:37:49,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 07:37:49,609 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2021-11-04 07:37:49,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 07:37:49,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 07:37:49,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 07:37:49,829 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 07:37:49,829 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 07:37:49,831 INFO L432 ainManager$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--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-04 07:37:49,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f9caa4a/9ef64c72dae441509a4f0437675cf9d8/FLAGfbe3606e0 [2021-11-04 07:37:50,448 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 07:37:50,449 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--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-04 07:37:50,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f9caa4a/9ef64c72dae441509a4f0437675cf9d8/FLAGfbe3606e0 [2021-11-04 07:37:50,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f9caa4a/9ef64c72dae441509a4f0437675cf9d8 [2021-11-04 07:37:50,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 07:37:50,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 07:37:50,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 07:37:50,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 07:37:50,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 07:37:50,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 07:37:50" (1/1) ... [2021-11-04 07:37:50,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332ba387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:50, skipping insertion in model container [2021-11-04 07:37:50,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 07:37:50" (1/1) ... [2021-11-04 07:37:50,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 07:37:50,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 07:37:52,770 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--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2021-11-04 07:37:52,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 07:37:52,904 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 07:37:53,330 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--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2021-11-04 07:37:53,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 07:37:53,449 INFO L208 MainTranslator]: Completed translation [2021-11-04 07:37:53,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53 WrapperNode [2021-11-04 07:37:53,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 07:37:53,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 07:37:53,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 07:37:53,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 07:37:53,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:53,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:54,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 07:37:54,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 07:37:54,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 07:37:54,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 07:37:54,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:54,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:54,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:54,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:54,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:55,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:55,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:55,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 07:37:55,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 07:37:55,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 07:37:55,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 07:37:55,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (1/1) ... [2021-11-04 07:37:55,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 07:37:55,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 07:37:55,405 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) [2021-11-04 07:37:55,435 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 [2021-11-04 07:37:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 07:37:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-04 07:37:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 07:37:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 07:37:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 07:37:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 07:37:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 07:37:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 07:37:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 07:37:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 07:37:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 07:37:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 07:38:09,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 07:38:09,137 INFO L299 CfgBuilder]: Removed 5499 assume(true) statements. [2021-11-04 07:38:09,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 07:38:09 BoogieIcfgContainer [2021-11-04 07:38:09,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 07:38:09,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 07:38:09,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 07:38:09,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 07:38:09,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 07:37:50" (1/3) ... [2021-11-04 07:38:09,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415d4366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 07:38:09, skipping insertion in model container [2021-11-04 07:38:09,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 07:37:53" (2/3) ... [2021-11-04 07:38:09,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415d4366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 07:38:09, skipping insertion in model container [2021-11-04 07:38:09,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 07:38:09" (3/3) ... [2021-11-04 07:38:09,151 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-04 07:38:09,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 07:38:09,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2021-11-04 07:38:09,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 07:38:09,218 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 [2021-11-04 07:38:09,219 INFO L340 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2021-11-04 07:38:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 5564 states, 5488 states have (on average 1.5369897959183674) internal successors, (8435), 5563 states have internal predecessors, (8435), 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) [2021-11-04 07:38:09,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-04 07:38:09,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:38:09,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:38:09,310 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-04 07:38:09,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:38:09,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2137541953, now seen corresponding path program 1 times [2021-11-04 07:38:09,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:38:09,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445687235] [2021-11-04 07:38:09,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:38:09,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:38:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:38:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 07:38:10,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:38:10,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445687235] [2021-11-04 07:38:10,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445687235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:38:10,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:38:10,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 07:38:10,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935197832] [2021-11-04 07:38:10,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:38:10,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 07:38:10,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:38:10,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 07:38:10,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 07:38:10,041 INFO L87 Difference]: Start difference. First operand has 5564 states, 5488 states have (on average 1.5369897959183674) internal successors, (8435), 5563 states have internal predecessors, (8435), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2021-11-04 07:38:12,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:38:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:38:48,785 INFO L93 Difference]: Finished difference Result 11124 states and 16865 transitions. [2021-11-04 07:38:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 07:38:48,787 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2021-11-04 07:38:48,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:38:48,867 INFO L225 Difference]: With dead ends: 11124 [2021-11-04 07:38:48,868 INFO L226 Difference]: Without dead ends: 5519 [2021-11-04 07:38:48,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 07:38:48,904 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8309 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35365.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 8310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38006.69ms IncrementalHoareTripleChecker+Time [2021-11-04 07:38:48,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 8310 Unknown, 0 Unchecked, 45.85ms Time], IncrementalHoareTripleChecker [0 Valid, 8309 Invalid, 1 Unknown, 0 Unchecked, 38006.69ms Time] [2021-11-04 07:38:48,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5519 states. [2021-11-04 07:38:49,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5519 to 5519. [2021-11-04 07:38:49,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5519 states, 5444 states have (on average 1.5165319617927995) internal successors, (8256), 5518 states have internal predecessors, (8256), 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) [2021-11-04 07:38:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 8256 transitions. [2021-11-04 07:38:49,087 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 8256 transitions. Word has length 55 [2021-11-04 07:38:49,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:38:49,087 INFO L470 AbstractCegarLoop]: Abstraction has 5519 states and 8256 transitions. [2021-11-04 07:38:49,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2021-11-04 07:38:49,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 8256 transitions. [2021-11-04 07:38:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-04 07:38:49,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:38:49,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:38:49,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 07:38:49,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-04 07:38:49,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:38:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1819365493, now seen corresponding path program 1 times [2021-11-04 07:38:49,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:38:49,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212223606] [2021-11-04 07:38:49,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:38:49,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:38:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:38:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 07:38:49,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:38:49,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212223606] [2021-11-04 07:38:49,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212223606] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:38:49,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:38:49,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 07:38:49,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764634200] [2021-11-04 07:38:49,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:38:49,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:38:49,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:38:49,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:38:49,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:38:49,523 INFO L87 Difference]: Start difference. First operand 5519 states and 8256 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-11-04 07:38:51,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:39:40,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:40:44,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:40:44,146 INFO L93 Difference]: Finished difference Result 11019 states and 16497 transitions. [2021-11-04 07:40:44,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:40:44,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2021-11-04 07:40:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:40:44,165 INFO L225 Difference]: With dead ends: 11019 [2021-11-04 07:40:44,165 INFO L226 Difference]: Without dead ends: 5524 [2021-11-04 07:40:44,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:40:44,173 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 8234 mSDsCounter, 0 mSdLazyCounter, 16504 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108550.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 123.04ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113716.01ms IncrementalHoareTripleChecker+Time [2021-11-04 07:40:44,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 16514 Unknown, 0 Unchecked, 123.04ms Time], IncrementalHoareTripleChecker [8 Valid, 16504 Invalid, 2 Unknown, 0 Unchecked, 113716.01ms Time] [2021-11-04 07:40:44,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2021-11-04 07:40:44,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 5524. [2021-11-04 07:40:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5524 states, 5449 states have (on average 1.5160579922921638) internal successors, (8261), 5523 states have internal predecessors, (8261), 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) [2021-11-04 07:40:44,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5524 states to 5524 states and 8261 transitions. [2021-11-04 07:40:44,281 INFO L78 Accepts]: Start accepts. Automaton has 5524 states and 8261 transitions. Word has length 55 [2021-11-04 07:40:44,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:40:44,281 INFO L470 AbstractCegarLoop]: Abstraction has 5524 states and 8261 transitions. [2021-11-04 07:40:44,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-11-04 07:40:44,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5524 states and 8261 transitions. [2021-11-04 07:40:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-04 07:40:44,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:40:44,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:40:44,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 07:40:44,283 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-04 07:40:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:40:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash 717205678, now seen corresponding path program 1 times [2021-11-04 07:40:44,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:40:44,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545699917] [2021-11-04 07:40:44,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:40:44,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:40:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:40:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-04 07:40:44,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:40:44,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545699917] [2021-11-04 07:40:44,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545699917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:40:44,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:40:44,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 07:40:44,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739044164] [2021-11-04 07:40:44,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:40:44,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:40:44,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:40:44,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:40:44,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:40:44,756 INFO L87 Difference]: Start difference. First operand 5524 states and 8261 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-04 07:40:46,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:42:08,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:42:45,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:42:45,941 INFO L93 Difference]: Finished difference Result 15854 states and 23795 transitions. [2021-11-04 07:42:45,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:42:45,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-04 07:42:45,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:42:45,972 INFO L225 Difference]: With dead ends: 15854 [2021-11-04 07:42:45,972 INFO L226 Difference]: Without dead ends: 10378 [2021-11-04 07:42:45,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:42:45,984 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7320 mSDsluCounter, 8229 mSDsCounter, 0 mSdLazyCounter, 16503 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113531.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7320 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 128.76ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119742.29ms IncrementalHoareTripleChecker+Time [2021-11-04 07:42:45,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7320 Valid, 0 Invalid, 16506 Unknown, 0 Unchecked, 128.76ms Time], IncrementalHoareTripleChecker [1 Valid, 16503 Invalid, 2 Unknown, 0 Unchecked, 119742.29ms Time] [2021-11-04 07:42:46,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10378 states. [2021-11-04 07:42:46,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10378 to 10249. [2021-11-04 07:42:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10249 states, 10174 states have (on average 1.5255553371338706) internal successors, (15521), 10248 states have internal predecessors, (15521), 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) [2021-11-04 07:42:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10249 states to 10249 states and 15521 transitions. [2021-11-04 07:42:46,179 INFO L78 Accepts]: Start accepts. Automaton has 10249 states and 15521 transitions. Word has length 60 [2021-11-04 07:42:46,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:42:46,180 INFO L470 AbstractCegarLoop]: Abstraction has 10249 states and 15521 transitions. [2021-11-04 07:42:46,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-04 07:42:46,181 INFO L276 IsEmpty]: Start isEmpty. Operand 10249 states and 15521 transitions. [2021-11-04 07:42:46,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-04 07:42:46,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:42:46,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:42:46,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 07:42:46,183 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-04 07:42:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:42:46,184 INFO L85 PathProgramCache]: Analyzing trace with hash 787440037, now seen corresponding path program 1 times [2021-11-04 07:42:46,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:42:46,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426163402] [2021-11-04 07:42:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:42:46,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:42:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:42:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-04 07:42:46,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:42:46,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426163402] [2021-11-04 07:42:46,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426163402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:42:46,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:42:46,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 07:42:46,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288366206] [2021-11-04 07:42:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:42:46,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:42:46,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:42:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:42:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:42:46,603 INFO L87 Difference]: Start difference. First operand 10249 states and 15521 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-04 07:42:48,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:44:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:44:46,967 INFO L93 Difference]: Finished difference Result 27461 states and 41717 transitions. [2021-11-04 07:44:46,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:44:46,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-04 07:44:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:44:47,015 INFO L225 Difference]: With dead ends: 27461 [2021-11-04 07:44:47,015 INFO L226 Difference]: Without dead ends: 17260 [2021-11-04 07:44:47,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.91ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:44:47,027 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5824 mSDsluCounter, 8147 mSDsCounter, 0 mSdLazyCounter, 16503 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113278.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5824 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 97.59ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119100.98ms IncrementalHoareTripleChecker+Time [2021-11-04 07:44:47,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5824 Valid, 0 Invalid, 16505 Unknown, 0 Unchecked, 97.59ms Time], IncrementalHoareTripleChecker [1 Valid, 16503 Invalid, 1 Unknown, 0 Unchecked, 119100.98ms Time] [2021-11-04 07:44:47,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17260 states. [2021-11-04 07:44:47,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17260 to 17150. [2021-11-04 07:44:47,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17150 states, 17075 states have (on average 1.5339385065885798) internal successors, (26192), 17149 states have internal predecessors, (26192), 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) [2021-11-04 07:44:47,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17150 states to 17150 states and 26192 transitions. [2021-11-04 07:44:47,323 INFO L78 Accepts]: Start accepts. Automaton has 17150 states and 26192 transitions. Word has length 61 [2021-11-04 07:44:47,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:44:47,324 INFO L470 AbstractCegarLoop]: Abstraction has 17150 states and 26192 transitions. [2021-11-04 07:44:47,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-04 07:44:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 17150 states and 26192 transitions. [2021-11-04 07:44:47,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-04 07:44:47,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:44:47,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:44:47,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 07:44:47,327 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-04 07:44:47,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:44:47,327 INFO L85 PathProgramCache]: Analyzing trace with hash -688863533, now seen corresponding path program 1 times [2021-11-04 07:44:47,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:44:47,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321975180] [2021-11-04 07:44:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:44:47,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:44:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:44:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-04 07:44:47,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:44:47,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321975180] [2021-11-04 07:44:47,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321975180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:44:47,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:44:47,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 07:44:47,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284303326] [2021-11-04 07:44:47,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:44:47,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:44:47,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:44:47,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:44:47,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:44:47,733 INFO L87 Difference]: Start difference. First operand 17150 states and 26192 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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) [2021-11-04 07:44:49,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:46:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:46:23,119 INFO L93 Difference]: Finished difference Result 17280 states and 26376 transitions. [2021-11-04 07:46:23,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:46:23,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2021-11-04 07:46:23,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:46:23,162 INFO L225 Difference]: With dead ends: 17280 [2021-11-04 07:46:23,162 INFO L226 Difference]: Without dead ends: 17210 [2021-11-04 07:46:23,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:46:23,173 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3989 mSDsluCounter, 3725 mSDsCounter, 0 mSdLazyCounter, 12190 mSolverCounterSat, 262 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90040.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.56ms SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 12190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94519.66ms IncrementalHoareTripleChecker+Time [2021-11-04 07:46:23,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3989 Valid, 0 Invalid, 12453 Unknown, 0 Unchecked, 71.56ms Time], IncrementalHoareTripleChecker [262 Valid, 12190 Invalid, 1 Unknown, 0 Unchecked, 94519.66ms Time] [2021-11-04 07:46:23,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17210 states. [2021-11-04 07:46:23,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17210 to 17080. [2021-11-04 07:46:23,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17080 states, 17040 states have (on average 1.529049295774648) internal successors, (26055), 17079 states have internal predecessors, (26055), 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) [2021-11-04 07:46:23,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17080 states to 17080 states and 26055 transitions. [2021-11-04 07:46:23,480 INFO L78 Accepts]: Start accepts. Automaton has 17080 states and 26055 transitions. Word has length 63 [2021-11-04 07:46:23,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:46:23,483 INFO L470 AbstractCegarLoop]: Abstraction has 17080 states and 26055 transitions. [2021-11-04 07:46:23,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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) [2021-11-04 07:46:23,484 INFO L276 IsEmpty]: Start isEmpty. Operand 17080 states and 26055 transitions. [2021-11-04 07:46:23,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-04 07:46:23,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:46:23,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:46:23,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 07:46:23,492 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-04 07:46:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:46:23,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1231838538, now seen corresponding path program 1 times [2021-11-04 07:46:23,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:46:23,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525797886] [2021-11-04 07:46:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:46:23,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:46:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:46:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-04 07:46:23,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:46:23,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525797886] [2021-11-04 07:46:23,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525797886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:46:23,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:46:23,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 07:46:23,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81603961] [2021-11-04 07:46:23,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:46:23,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 07:46:23,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:46:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 07:46:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-04 07:46:23,933 INFO L87 Difference]: Start difference. First operand 17080 states and 26055 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2021-11-04 07:46:26,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:51:18,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:51:36,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15