./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 5b36d44f 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-5b36d44 [2021-11-07 15:34:24,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:34:24,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:34:24,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:34:24,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:34:24,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:34:24,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:34:24,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:34:24,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:34:24,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:34:24,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:34:24,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:34:24,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:34:24,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:34:24,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:34:24,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:34:24,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:34:24,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:34:24,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:34:24,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:34:24,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:34:24,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:34:24,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:34:24,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:34:24,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:34:24,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:34:24,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:34:24,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:34:24,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:34:24,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:34:24,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:34:24,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:34:24,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:34:24,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:34:24,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:34:24,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:34:24,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:34:24,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:34:24,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:34:24,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:34:24,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:34:24,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:34:24,668 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:34:24,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:34:24,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:34:24,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:34:24,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:34:24,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:34:24,671 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:34:24,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:34:24,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:34:24,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:34:24,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:34:24,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:34:24,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:34:24,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:34:24,673 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:34:24,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:34:24,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:34:24,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:34:24,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:34:24,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:34:24,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:34:24,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:34:24,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:34:24,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:34:24,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:34:24,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:34:24,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:34:24,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:34:24,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:34:24,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2021-11-07 15:34:24,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:34:24,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:34:24,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:34:24,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:34:24,917 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:34:24,919 INFO L432 ainManager$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 [2021-11-07 15:34:24,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7cae6c3c/c88c6d7e05294731b7ff443481ccc3bf/FLAGba22e7148 [2021-11-07 15:34:25,621 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:34:25,623 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 [2021-11-07 15:34:25,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7cae6c3c/c88c6d7e05294731b7ff443481ccc3bf/FLAGba22e7148 [2021-11-07 15:34:25,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7cae6c3c/c88c6d7e05294731b7ff443481ccc3bf [2021-11-07 15:34:25,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:34:25,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:34:25,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:34:25,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:34:25,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:34:25,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:25" (1/1) ... [2021-11-07 15:34:25,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b1d0d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:25, skipping insertion in model container [2021-11-07 15:34:25,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:25" (1/1) ... [2021-11-07 15:34:25,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:34:25,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:34:27,340 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] [2021-11-07 15:34:27,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:34:27,495 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:34:27,863 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] [2021-11-07 15:34:27,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:34:27,961 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:34:27,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27 WrapperNode [2021-11-07 15:34:27,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:34:27,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:34:27,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:34:27,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:34:27,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:28,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:28,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:34:28,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:34:28,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:34:28,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:34:28,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:28,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:28,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:28,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:29,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:29,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:29,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:29,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:34:29,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:34:29,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:34:29,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:34:29,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (1/1) ... [2021-11-07 15:34:29,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:34:29,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:34:29,513 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) [2021-11-07 15:34:29,530 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 [2021-11-07 15:34:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:34:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 15:34:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:34:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:34:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:34:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:34:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:34:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:34:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:34:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:34:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:34:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:35:44,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:35:44,946 INFO L299 CfgBuilder]: Removed 5499 assume(true) statements. [2021-11-07 15:35:44,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:35:44 BoogieIcfgContainer [2021-11-07 15:35:44,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:35:44,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:35:44,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:35:44,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:35:44,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:34:25" (1/3) ... [2021-11-07 15:35:44,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa5091f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:35:44, skipping insertion in model container [2021-11-07 15:35:44,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:27" (2/3) ... [2021-11-07 15:35:44,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa5091f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:35:44, skipping insertion in model container [2021-11-07 15:35:44,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:35:44" (3/3) ... [2021-11-07 15:35:44,958 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-11-07 15:35:44,962 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:35:44,962 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2021-11-07 15:35:45,005 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:35:45,010 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 [2021-11-07 15:35:45,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2021-11-07 15:35:45,068 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) [2021-11-07 15:35:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 15:35:45,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:35:45,076 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] [2021-11-07 15:35:45,076 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)] === [2021-11-07 15:35:45,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:35:45,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2137541953, now seen corresponding path program 1 times [2021-11-07 15:35:45,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:35:45,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520863768] [2021-11-07 15:35:45,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:35:45,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:35:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:35:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:35:45,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:35:45,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520863768] [2021-11-07 15:35:45,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520863768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:35:45,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:35:45,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:35:45,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663012716] [2021-11-07 15:35:45,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:35:45,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:35:45,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:35:45,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:35:45,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:35:45,839 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) [2021-11-07 15:35:46,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:35:46,012 INFO L93 Difference]: Finished difference Result 11124 states and 16865 transitions. [2021-11-07 15:35:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:35:46,014 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 [2021-11-07 15:35:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:35:46,048 INFO L225 Difference]: With dead ends: 11124 [2021-11-07 15:35:46,048 INFO L226 Difference]: Without dead ends: 5519 [2021-11-07 15:35:46,064 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 [2021-11-07 15:35:46,068 INFO L933 BasicCegarLoop]: 8319 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8319 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:35:46,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8319 Invalid, 0 Unknown, 0 Unchecked, 15.23ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:35:46,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5519 states. [2021-11-07 15:35:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5519 to 5519. [2021-11-07 15:35:46,215 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) [2021-11-07 15:35:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 8256 transitions. [2021-11-07 15:35:46,231 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 8256 transitions. Word has length 55 [2021-11-07 15:35:46,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:35:46,232 INFO L470 AbstractCegarLoop]: Abstraction has 5519 states and 8256 transitions. [2021-11-07 15:35:46,232 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) [2021-11-07 15:35:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 8256 transitions. [2021-11-07 15:35:46,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 15:35:46,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:35:46,238 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] [2021-11-07 15:35:46,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:35:46,239 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)] === [2021-11-07 15:35:46,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:35:46,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1819365493, now seen corresponding path program 1 times [2021-11-07 15:35:46,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:35:46,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475861564] [2021-11-07 15:35:46,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:35:46,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:35:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:35:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:35:46,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:35:46,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475861564] [2021-11-07 15:35:46,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475861564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:35:46,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:35:46,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:35:46,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296666510] [2021-11-07 15:35:46,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:35:46,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:35:46,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:35:46,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:35:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:35:46,699 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) [2021-11-07 15:35:47,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:35:47,230 INFO L93 Difference]: Finished difference Result 15849 states and 23790 transitions. [2021-11-07 15:35:47,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:35:47,231 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 [2021-11-07 15:35:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:35:47,266 INFO L225 Difference]: With dead ends: 15849 [2021-11-07 15:35:47,266 INFO L226 Difference]: Without dead ends: 10373 [2021-11-07 15:35:47,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:35:47,282 INFO L933 BasicCegarLoop]: 8255 mSDtfsCounter, 7362 mSDsluCounter, 8187 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 296.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7362 SdHoareTripleChecker+Valid, 16442 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.03ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 331.10ms IncrementalHoareTripleChecker+Time [2021-11-07 15:35:47,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7362 Valid, 16442 Invalid, 23 Unknown, 0 Unchecked, 24.03ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 331.10ms Time] [2021-11-07 15:35:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10373 states. [2021-11-07 15:35:47,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10373 to 10244. [2021-11-07 15:35:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10244 states, 10169 states have (on average 1.5258137476644704) internal successors, (15516), 10243 states have internal predecessors, (15516), 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) [2021-11-07 15:35:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10244 states to 10244 states and 15516 transitions. [2021-11-07 15:35:47,499 INFO L78 Accepts]: Start accepts. Automaton has 10244 states and 15516 transitions. Word has length 55 [2021-11-07 15:35:47,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:35:47,500 INFO L470 AbstractCegarLoop]: Abstraction has 10244 states and 15516 transitions. [2021-11-07 15:35:47,501 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) [2021-11-07 15:35:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 10244 states and 15516 transitions. [2021-11-07 15:35:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 15:35:47,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:35:47,506 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] [2021-11-07 15:35:47,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:35:47,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-07 15:35:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:35:47,510 INFO L85 PathProgramCache]: Analyzing trace with hash 594655934, now seen corresponding path program 1 times [2021-11-07 15:35:47,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:35:47,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749400643] [2021-11-07 15:35:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:35:47,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:35:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:35:47,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:35:47,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:35:47,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749400643] [2021-11-07 15:35:47,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749400643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:35:47,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:35:47,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:35:47,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472009172] [2021-11-07 15:35:47,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:35:47,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:35:47,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:35:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:35:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:35:47,924 INFO L87 Difference]: Start difference. First operand 10244 states and 15516 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-07 15:35:48,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:35:48,989 INFO L93 Difference]: Finished difference Result 27456 states and 41712 transitions. [2021-11-07 15:35:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:35:48,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2021-11-07 15:35:48,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:35:49,045 INFO L225 Difference]: With dead ends: 27456 [2021-11-07 15:35:49,045 INFO L226 Difference]: Without dead ends: 17255 [2021-11-07 15:35:49,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:35:49,068 INFO L933 BasicCegarLoop]: 8255 mSDtfsCounter, 5865 mSDsluCounter, 8106 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 759.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5865 SdHoareTripleChecker+Valid, 16361 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 817.09ms IncrementalHoareTripleChecker+Time [2021-11-07 15:35:49,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5865 Valid, 16361 Invalid, 104 Unknown, 0 Unchecked, 16.14ms Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 817.09ms Time] [2021-11-07 15:35:49,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17255 states. [2021-11-07 15:35:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17255 to 17145. [2021-11-07 15:35:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17145 states, 17070 states have (on average 1.5340949033391915) internal successors, (26187), 17144 states have internal predecessors, (26187), 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) [2021-11-07 15:35:49,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17145 states to 17145 states and 26187 transitions. [2021-11-07 15:35:49,374 INFO L78 Accepts]: Start accepts. Automaton has 17145 states and 26187 transitions. Word has length 56 [2021-11-07 15:35:49,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:35:49,376 INFO L470 AbstractCegarLoop]: Abstraction has 17145 states and 26187 transitions. [2021-11-07 15:35:49,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-07 15:35:49,377 INFO L276 IsEmpty]: Start isEmpty. Operand 17145 states and 26187 transitions. [2021-11-07 15:35:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 15:35:49,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:35:49,378 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] [2021-11-07 15:35:49,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:35:49,379 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-07 15:35:49,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:35:49,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1270792788, now seen corresponding path program 1 times [2021-11-07 15:35:49,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:35:49,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580679715] [2021-11-07 15:35:49,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:35:49,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:35:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:35:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:35:49,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:35:49,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580679715] [2021-11-07 15:35:49,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580679715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:35:49,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:35:49,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:35:49,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729482106] [2021-11-07 15:35:49,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:35:49,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:35:49,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:35:49,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:35:49,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:35:49,708 INFO L87 Difference]: Start difference. First operand 17145 states and 26187 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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) [2021-11-07 15:35:51,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:35:51,872 INFO L93 Difference]: Finished difference Result 17275 states and 26371 transitions. [2021-11-07 15:35:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:35:51,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2021-11-07 15:35:51,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:35:51,911 INFO L225 Difference]: With dead ends: 17275 [2021-11-07 15:35:51,912 INFO L226 Difference]: Without dead ends: 17205 [2021-11-07 15:35:51,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:35:51,922 INFO L933 BasicCegarLoop]: 8203 mSDtfsCounter, 3994 mSDsluCounter, 3725 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1810.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3994 SdHoareTripleChecker+Valid, 11928 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.86ms SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1959.12ms IncrementalHoareTripleChecker+Time [2021-11-07 15:35:51,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3994 Valid, 11928 Invalid, 525 Unknown, 0 Unchecked, 14.86ms Time], IncrementalHoareTripleChecker [262 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 1959.12ms Time] [2021-11-07 15:35:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17205 states. [2021-11-07 15:35:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17205 to 17075. [2021-11-07 15:35:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17075 states, 17035 states have (on average 1.5292045788083357) internal successors, (26050), 17074 states have internal predecessors, (26050), 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) [2021-11-07 15:35:52,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17075 states to 17075 states and 26050 transitions. [2021-11-07 15:35:52,467 INFO L78 Accepts]: Start accepts. Automaton has 17075 states and 26050 transitions. Word has length 58 [2021-11-07 15:35:52,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:35:52,468 INFO L470 AbstractCegarLoop]: Abstraction has 17075 states and 26050 transitions. [2021-11-07 15:35:52,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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) [2021-11-07 15:35:52,468 INFO L276 IsEmpty]: Start isEmpty. Operand 17075 states and 26050 transitions. [2021-11-07 15:35:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 15:35:52,471 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:35:52,471 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] [2021-11-07 15:35:52,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:35:52,471 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-07 15:35:52,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:35:52,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1384221329, now seen corresponding path program 1 times [2021-11-07 15:35:52,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:35:52,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360371996] [2021-11-07 15:35:52,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:35:52,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:35:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:35:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:35:52,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:35:52,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360371996] [2021-11-07 15:35:52,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360371996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:35:52,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:35:52,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:35:52,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111322126] [2021-11-07 15:35:52,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:35:52,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:35:52,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:35:52,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:35:52,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:35:52,950 INFO L87 Difference]: Start difference. First operand 17075 states and 26050 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2021-11-07 15:35:55,091 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 [] [2021-11-07 15:36:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:36:00,179 INFO L93 Difference]: Finished difference Result 82597 states and 125619 transitions. [2021-11-07 15:36:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:36:00,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2021-11-07 15:36:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:36:00,367 INFO L225 Difference]: With dead ends: 82597 [2021-11-07 15:36:00,367 INFO L226 Difference]: Without dead ends: 65565 [2021-11-07 15:36:00,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 101.53ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:36:00,414 INFO L933 BasicCegarLoop]: 8406 mSDtfsCounter, 39611 mSDsluCounter, 23103 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 174 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6011.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39611 SdHoareTripleChecker+Valid, 31509 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.15ms SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6307.80ms IncrementalHoareTripleChecker+Time [2021-11-07 15:36:00,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39611 Valid, 31509 Invalid, 838 Unknown, 0 Unchecked, 49.15ms Time], IncrementalHoareTripleChecker [174 Valid, 663 Invalid, 1 Unknown, 0 Unchecked, 6307.80ms Time] [2021-11-07 15:36:00,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65565 states. [2021-11-07 15:36:01,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65565 to 65159. [2021-11-07 15:36:01,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65159 states, 65119 states have (on average 1.5185736881708871) internal successors, (98888), 65158 states have internal predecessors, (98888), 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) [2021-11-07 15:36:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65159 states to 65159 states and 98888 transitions. [2021-11-07 15:36:02,184 INFO L78 Accepts]: Start accepts. Automaton has 65159 states and 98888 transitions. Word has length 67 [2021-11-07 15:36:02,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:36:02,184 INFO L470 AbstractCegarLoop]: Abstraction has 65159 states and 98888 transitions. [2021-11-07 15:36:02,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2021-11-07 15:36:02,184 INFO L276 IsEmpty]: Start isEmpty. Operand 65159 states and 98888 transitions. [2021-11-07 15:36:02,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 15:36:02,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:36:02,186 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] [2021-11-07 15:36:02,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:36:02,187 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-07 15:36:02,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:36:02,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1885081138, now seen corresponding path program 1 times [2021-11-07 15:36:02,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:36:02,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099279513] [2021-11-07 15:36:02,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:36:02,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:36:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:36:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:36:02,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:36:02,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099279513] [2021-11-07 15:36:02,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099279513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:36:02,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:36:02,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:36:02,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298464376] [2021-11-07 15:36:02,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:36:02,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:36:02,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:36:02,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:36:02,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:36:02,616 INFO L87 Difference]: Start difference. First operand 65159 states and 98888 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-11-07 15:36:04,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:36:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:36:14,935 INFO L93 Difference]: Finished difference Result 318125 states and 482337 transitions. [2021-11-07 15:36:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:36:14,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2021-11-07 15:36:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:36:15,577 INFO L225 Difference]: With dead ends: 318125 [2021-11-07 15:36:15,577 INFO L226 Difference]: Without dead ends: 253009 [2021-11-07 15:36:15,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 100.38ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:36:15,691 INFO L933 BasicCegarLoop]: 8230 mSDtfsCounter, 23097 mSDsluCounter, 44377 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 157 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8511.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23097 SdHoareTripleChecker+Valid, 52607 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.88ms SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8883.84ms IncrementalHoareTripleChecker+Time [2021-11-07 15:36:15,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23097 Valid, 52607 Invalid, 1334 Unknown, 0 Unchecked, 53.88ms Time], IncrementalHoareTripleChecker [157 Valid, 1176 Invalid, 1 Unknown, 0 Unchecked, 8883.84ms Time] [2021-11-07 15:36:16,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253009 states. [2021-11-07 15:36:20,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253009 to 252435. [2021-11-07 15:36:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252435 states, 252395 states have (on average 1.5134214227698648) internal successors, (381980), 252434 states have internal predecessors, (381980), 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) [2021-11-07 15:36:21,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252435 states to 252435 states and 381980 transitions. [2021-11-07 15:36:21,507 INFO L78 Accepts]: Start accepts. Automaton has 252435 states and 381980 transitions. Word has length 68 [2021-11-07 15:36:21,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:36:21,507 INFO L470 AbstractCegarLoop]: Abstraction has 252435 states and 381980 transitions. [2021-11-07 15:36:21,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-11-07 15:36:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 252435 states and 381980 transitions. [2021-11-07 15:36:21,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 15:36:21,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:36:21,514 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] [2021-11-07 15:36:21,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 15:36:21,514 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 72 more)] === [2021-11-07 15:36:21,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:36:21,514 INFO L85 PathProgramCache]: Analyzing trace with hash -154241870, now seen corresponding path program 1 times [2021-11-07 15:36:21,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:36:21,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541342724] [2021-11-07 15:36:21,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:36:21,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:36:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:36:21,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:36:21,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:36:21,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541342724] [2021-11-07 15:36:21,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541342724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:36:21,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:36:21,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:36:21,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95115443] [2021-11-07 15:36:21,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:36:21,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:36:21,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:36:21,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:36:21,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:36:21,974 INFO L87 Difference]: Start difference. First operand 252435 states and 381980 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-11-07 15:36:24,118 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 [] [2021-11-07 15:36:45,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:36:45,095 INFO L93 Difference]: Finished difference Result 1236325 states and 1870705 transitions. [2021-11-07 15:36:45,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:36:45,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2021-11-07 15:36:45,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:36:47,953 INFO L225 Difference]: With dead ends: 1236325 [2021-11-07 15:36:47,954 INFO L226 Difference]: Without dead ends: 983933 [2021-11-07 15:36:48,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 104.89ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:36:48,470 INFO L933 BasicCegarLoop]: 8126 mSDtfsCounter, 23304 mSDsluCounter, 44455 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 157 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8675.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23304 SdHoareTripleChecker+Valid, 52581 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.98ms SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9060.50ms IncrementalHoareTripleChecker+Time [2021-11-07 15:36:48,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23304 Valid, 52581 Invalid, 1334 Unknown, 0 Unchecked, 53.98ms Time], IncrementalHoareTripleChecker [157 Valid, 1176 Invalid, 1 Unknown, 0 Unchecked, 9060.50ms Time] [2021-11-07 15:36:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983933 states.