./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.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 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 15:41:59,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 15:41:59,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 15:41:59,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 15:41:59,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 15:41:59,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 15:41:59,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 15:41:59,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 15:41:59,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 15:41:59,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 15:41:59,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 15:41:59,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 15:41:59,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 15:41:59,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 15:41:59,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 15:41:59,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 15:41:59,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 15:41:59,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 15:41:59,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 15:41:59,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 15:41:59,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 15:41:59,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 15:41:59,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 15:41:59,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 15:41:59,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 15:41:59,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 15:41:59,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 15:41:59,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 15:41:59,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 15:41:59,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 15:41:59,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 15:41:59,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 15:41:59,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 15:41:59,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 15:41:59,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 15:41:59,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 15:41:59,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 15:41:59,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 15:41:59,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 15:41:59,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 15:41:59,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 15:41:59,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 15:41:59,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 15:41:59,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 15:41:59,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 15:41:59,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 15:41:59,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 15:41:59,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 15:41:59,930 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 15:41:59,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 15:41:59,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 15:41:59,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 15:41:59,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 15:41:59,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 15:41:59,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 15:41:59,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 15:41:59,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 15:41:59,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 15:41:59,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 15:41:59,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 15:41:59,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 15:41:59,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:41:59,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 15:41:59,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 15:41:59,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 15:41:59,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 15:41:59,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 15:41:59,934 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 15:41:59,934 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 15:41:59,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 15:41:59,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 15:41:59,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-11-05 15:42:00,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 15:42:00,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 15:42:00,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 15:42:00,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 15:42:00,268 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 15:42:00,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-05 15:42:00,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddfe71ce0/19ad74f2cf8a460c9fc8c77c9f9f291e/FLAG456d95c8c [2021-11-05 15:42:00,964 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 15:42:00,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-05 15:42:00,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddfe71ce0/19ad74f2cf8a460c9fc8c77c9f9f291e/FLAG456d95c8c [2021-11-05 15:42:01,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddfe71ce0/19ad74f2cf8a460c9fc8c77c9f9f291e [2021-11-05 15:42:01,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 15:42:01,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 15:42:01,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 15:42:01,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 15:42:01,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 15:42:01,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:42:01" (1/1) ... [2021-11-05 15:42:01,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0b89e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:01, skipping insertion in model container [2021-11-05 15:42:01,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:42:01" (1/1) ... [2021-11-05 15:42:01,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 15:42:01,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 15:42:02,625 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-05 15:42:02,723 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-05 15:42:02,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:42:02,751 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 15:42:02,999 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-05 15:42:03,015 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-05 15:42:03,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:42:03,123 INFO L208 MainTranslator]: Completed translation [2021-11-05 15:42:03,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03 WrapperNode [2021-11-05 15:42:03,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 15:42:03,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 15:42:03,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 15:42:03,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 15:42:03,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 15:42:03,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 15:42:03,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 15:42:03,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 15:42:03,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 15:42:03,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 15:42:03,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 15:42:03,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 15:42:03,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (1/1) ... [2021-11-05 15:42:03,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:42:03,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 15:42:03,424 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) [2021-11-05 15:42:03,453 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 [2021-11-05 15:42:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 15:42:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 15:42:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 15:42:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 15:42:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 15:42:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 15:42:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 15:42:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 15:42:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 15:42:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 15:42:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 15:42:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 15:42:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 15:42:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 15:42:03,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 15:42:11,876 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 15:42:11,877 INFO L299 CfgBuilder]: Removed 182 assume(true) statements. [2021-11-05 15:42:11,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:42:11 BoogieIcfgContainer [2021-11-05 15:42:11,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 15:42:11,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 15:42:11,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 15:42:11,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 15:42:11,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:42:01" (1/3) ... [2021-11-05 15:42:11,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aa14e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:42:11, skipping insertion in model container [2021-11-05 15:42:11,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:03" (2/3) ... [2021-11-05 15:42:11,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aa14e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:42:11, skipping insertion in model container [2021-11-05 15:42:11,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:42:11" (3/3) ... [2021-11-05 15:42:11,886 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-05 15:42:11,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 15:42:11,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-05 15:42:11,926 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 15:42:11,945 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 [2021-11-05 15:42:11,946 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-05 15:42:11,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 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) [2021-11-05 15:42:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-05 15:42:11,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:11,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:11,985 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:11,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1013367014, now seen corresponding path program 1 times [2021-11-05 15:42:11,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:12,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731025563] [2021-11-05 15:42:12,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:12,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:12,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:12,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731025563] [2021-11-05 15:42:12,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731025563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:12,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:12,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:12,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527475615] [2021-11-05 15:42:12,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:12,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:12,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:12,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:12,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:12,575 INFO L87 Difference]: Start difference. First operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-05 15:42:12,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:12,763 INFO L93 Difference]: Finished difference Result 576 states and 851 transitions. [2021-11-05 15:42:12,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:12,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-11-05 15:42:12,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:12,776 INFO L225 Difference]: With dead ends: 576 [2021-11-05 15:42:12,776 INFO L226 Difference]: Without dead ends: 325 [2021-11-05 15:42:12,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:12,782 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 121 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.94ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.13ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:12,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 685 Invalid, 11 Unknown, 0 Unchecked, 6.94ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 126.13ms Time] [2021-11-05 15:42:12,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-11-05 15:42:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 306. [2021-11-05 15:42:12,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 295 states have (on average 1.5186440677966102) internal successors, (448), 305 states have internal predecessors, (448), 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) [2021-11-05 15:42:12,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 448 transitions. [2021-11-05 15:42:12,838 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 448 transitions. Word has length 14 [2021-11-05 15:42:12,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:12,839 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 448 transitions. [2021-11-05 15:42:12,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-05 15:42:12,839 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 448 transitions. [2021-11-05 15:42:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-05 15:42:12,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:12,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:12,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 15:42:12,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:12,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:12,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1696174329, now seen corresponding path program 1 times [2021-11-05 15:42:12,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:12,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77461837] [2021-11-05 15:42:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:12,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:13,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:13,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77461837] [2021-11-05 15:42:13,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77461837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:13,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:13,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:13,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100264340] [2021-11-05 15:42:13,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:13,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:13,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:13,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:13,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:13,045 INFO L87 Difference]: Start difference. First operand 306 states and 448 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-05 15:42:15,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:15,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:15,299 INFO L93 Difference]: Finished difference Result 874 states and 1296 transitions. [2021-11-05 15:42:15,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:15,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-05 15:42:15,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:15,303 INFO L225 Difference]: With dead ends: 874 [2021-11-05 15:42:15,303 INFO L226 Difference]: Without dead ends: 571 [2021-11-05 15:42:15,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:15,305 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 313 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2097.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.96ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2212.28ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:15,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 885 Invalid, 16 Unknown, 0 Unchecked, 4.96ms Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2212.28ms Time] [2021-11-05 15:42:15,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-11-05 15:42:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 559. [2021-11-05 15:42:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 548 states have (on average 1.531021897810219) internal successors, (839), 558 states have internal predecessors, (839), 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) [2021-11-05 15:42:15,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 839 transitions. [2021-11-05 15:42:15,332 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 839 transitions. Word has length 15 [2021-11-05 15:42:15,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:15,333 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 839 transitions. [2021-11-05 15:42:15,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-05 15:42:15,333 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 839 transitions. [2021-11-05 15:42:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 15:42:15,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:15,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:15,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 15:42:15,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:15,335 INFO L85 PathProgramCache]: Analyzing trace with hash -724212375, now seen corresponding path program 1 times [2021-11-05 15:42:15,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:15,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663564739] [2021-11-05 15:42:15,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:15,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:15,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:15,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:15,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663564739] [2021-11-05 15:42:15,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663564739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:15,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:15,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:15,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734402367] [2021-11-05 15:42:15,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:15,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:15,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:15,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:15,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:15,483 INFO L87 Difference]: Start difference. First operand 559 states and 839 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-05 15:42:15,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:15,561 INFO L93 Difference]: Finished difference Result 589 states and 867 transitions. [2021-11-05 15:42:15,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:15,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-05 15:42:15,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:15,565 INFO L225 Difference]: With dead ends: 589 [2021-11-05 15:42:15,565 INFO L226 Difference]: Without dead ends: 574 [2021-11-05 15:42:15,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:15,567 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 339 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.38ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.49ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:15,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 371 Invalid, 6 Unknown, 0 Unchecked, 1.38ms Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 64.49ms Time] [2021-11-05 15:42:15,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-11-05 15:42:15,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 559. [2021-11-05 15:42:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 548 states have (on average 1.5291970802919708) internal successors, (838), 558 states have internal predecessors, (838), 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) [2021-11-05 15:42:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 838 transitions. [2021-11-05 15:42:15,587 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 838 transitions. Word has length 17 [2021-11-05 15:42:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:15,587 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 838 transitions. [2021-11-05 15:42:15,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-05 15:42:15,588 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 838 transitions. [2021-11-05 15:42:15,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 15:42:15,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:15,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:15,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 15:42:15,589 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash -724152793, now seen corresponding path program 1 times [2021-11-05 15:42:15,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:15,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698176223] [2021-11-05 15:42:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:15,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:15,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:15,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:15,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698176223] [2021-11-05 15:42:15,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698176223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:15,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:15,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:15,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521125339] [2021-11-05 15:42:15,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:15,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:15,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:15,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:15,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:15,762 INFO L87 Difference]: Start difference. First operand 559 states and 838 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-05 15:42:17,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:17,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:17,956 INFO L93 Difference]: Finished difference Result 559 states and 838 transitions. [2021-11-05 15:42:17,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:17,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-05 15:42:17,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:17,960 INFO L225 Difference]: With dead ends: 559 [2021-11-05 15:42:17,960 INFO L226 Difference]: Without dead ends: 557 [2021-11-05 15:42:17,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:17,964 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 327 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2047.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2177.67ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:17,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 341 Invalid, 2 Unknown, 0 Unchecked, 1.04ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2177.67ms Time] [2021-11-05 15:42:17,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-11-05 15:42:17,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2021-11-05 15:42:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 547 states have (on average 1.5283363802559415) internal successors, (836), 556 states have internal predecessors, (836), 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) [2021-11-05 15:42:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 836 transitions. [2021-11-05 15:42:17,980 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 836 transitions. Word has length 17 [2021-11-05 15:42:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:17,981 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 836 transitions. [2021-11-05 15:42:17,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-05 15:42:17,982 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 836 transitions. [2021-11-05 15:42:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-05 15:42:17,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:17,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:17,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 15:42:17,990 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash -973900918, now seen corresponding path program 1 times [2021-11-05 15:42:17,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:17,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524066300] [2021-11-05 15:42:17,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:17,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:18,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:18,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524066300] [2021-11-05 15:42:18,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524066300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:18,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:18,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:18,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28136100] [2021-11-05 15:42:18,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:18,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:18,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:18,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:18,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:18,164 INFO L87 Difference]: Start difference. First operand 557 states and 836 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-05 15:42:20,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:20,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:20,408 INFO L93 Difference]: Finished difference Result 557 states and 836 transitions. [2021-11-05 15:42:20,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:20,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-05 15:42:20,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:20,411 INFO L225 Difference]: With dead ends: 557 [2021-11-05 15:42:20,411 INFO L226 Difference]: Without dead ends: 553 [2021-11-05 15:42:20,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:20,412 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 315 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2074.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.24ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2228.37ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:20,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 339 Invalid, 8 Unknown, 0 Unchecked, 1.24ms Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2228.37ms Time] [2021-11-05 15:42:20,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-11-05 15:42:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2021-11-05 15:42:20,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 545 states have (on average 1.5247706422018348) internal successors, (831), 552 states have internal predecessors, (831), 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) [2021-11-05 15:42:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 831 transitions. [2021-11-05 15:42:20,428 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 831 transitions. Word has length 18 [2021-11-05 15:42:20,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:20,428 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 831 transitions. [2021-11-05 15:42:20,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-05 15:42:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 831 transitions. [2021-11-05 15:42:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-05 15:42:20,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:20,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:20,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 15:42:20,430 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash -126158191, now seen corresponding path program 1 times [2021-11-05 15:42:20,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:20,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286844458] [2021-11-05 15:42:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:20,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:20,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:20,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:20,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286844458] [2021-11-05 15:42:20,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286844458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:20,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:20,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:20,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901514831] [2021-11-05 15:42:20,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:20,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:20,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:20,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:20,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:20,569 INFO L87 Difference]: Start difference. First operand 553 states and 831 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-05 15:42:22,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:22,777 INFO L93 Difference]: Finished difference Result 553 states and 831 transitions. [2021-11-05 15:42:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:22,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-05 15:42:22,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:22,780 INFO L225 Difference]: With dead ends: 553 [2021-11-05 15:42:22,781 INFO L226 Difference]: Without dead ends: 551 [2021-11-05 15:42:22,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.88ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:22,782 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 319 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2045.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.00ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2194.90ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:22,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 335 Invalid, 2 Unknown, 0 Unchecked, 1.00ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2194.90ms Time] [2021-11-05 15:42:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2021-11-05 15:42:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2021-11-05 15:42:22,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 544 states have (on average 1.5238970588235294) internal successors, (829), 550 states have internal predecessors, (829), 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) [2021-11-05 15:42:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2021-11-05 15:42:22,797 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 19 [2021-11-05 15:42:22,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:22,798 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2021-11-05 15:42:22,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-05 15:42:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2021-11-05 15:42:22,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-05 15:42:22,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:22,799 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] [2021-11-05 15:42:22,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 15:42:22,799 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:22,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:22,800 INFO L85 PathProgramCache]: Analyzing trace with hash 384062580, now seen corresponding path program 1 times [2021-11-05 15:42:22,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:22,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341906798] [2021-11-05 15:42:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:22,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:22,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:22,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341906798] [2021-11-05 15:42:22,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341906798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:22,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:22,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:22,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480526094] [2021-11-05 15:42:22,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:22,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:22,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:22,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:22,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:22,993 INFO L87 Difference]: Start difference. First operand 551 states and 829 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-05 15:42:25,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:25,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:25,237 INFO L93 Difference]: Finished difference Result 826 states and 1270 transitions. [2021-11-05 15:42:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:25,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-05 15:42:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:25,240 INFO L225 Difference]: With dead ends: 826 [2021-11-05 15:42:25,241 INFO L226 Difference]: Without dead ends: 820 [2021-11-05 15:42:25,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:25,242 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 123 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2090.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.69ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2222.71ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:25,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 646 Invalid, 20 Unknown, 0 Unchecked, 1.69ms Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2222.71ms Time] [2021-11-05 15:42:25,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2021-11-05 15:42:25,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2021-11-05 15:42:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 813 states have (on average 1.5522755227552276) internal successors, (1262), 819 states have internal predecessors, (1262), 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) [2021-11-05 15:42:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1262 transitions. [2021-11-05 15:42:25,264 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1262 transitions. Word has length 20 [2021-11-05 15:42:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:25,264 INFO L470 AbstractCegarLoop]: Abstraction has 820 states and 1262 transitions. [2021-11-05 15:42:25,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-05 15:42:25,264 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1262 transitions. [2021-11-05 15:42:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-05 15:42:25,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:25,265 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] [2021-11-05 15:42:25,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 15:42:25,266 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:25,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:25,266 INFO L85 PathProgramCache]: Analyzing trace with hash -978962693, now seen corresponding path program 1 times [2021-11-05 15:42:25,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:25,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903787827] [2021-11-05 15:42:25,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:25,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:25,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:25,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903787827] [2021-11-05 15:42:25,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903787827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:25,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:25,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:25,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352661954] [2021-11-05 15:42:25,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:25,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:25,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:25,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:25,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:25,432 INFO L87 Difference]: Start difference. First operand 820 states and 1262 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-05 15:42:27,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:27,492 INFO L93 Difference]: Finished difference Result 820 states and 1262 transitions. [2021-11-05 15:42:27,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:27,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-05 15:42:27,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:27,662 INFO L225 Difference]: With dead ends: 820 [2021-11-05 15:42:27,662 INFO L226 Difference]: Without dead ends: 809 [2021-11-05 15:42:27,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:27,663 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 315 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2039.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2040.67ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:27,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 334 Invalid, 1 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2040.67ms Time] [2021-11-05 15:42:27,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-11-05 15:42:27,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2021-11-05 15:42:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 803 states have (on average 1.5529265255292652) internal successors, (1247), 808 states have internal predecessors, (1247), 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) [2021-11-05 15:42:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1247 transitions. [2021-11-05 15:42:27,691 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1247 transitions. Word has length 21 [2021-11-05 15:42:27,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:27,692 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1247 transitions. [2021-11-05 15:42:27,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-05 15:42:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1247 transitions. [2021-11-05 15:42:27,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-05 15:42:27,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:27,693 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:27,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 15:42:27,694 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:27,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:27,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1647991296, now seen corresponding path program 1 times [2021-11-05 15:42:27,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:27,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935757395] [2021-11-05 15:42:27,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:27,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 15:42:27,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:27,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935757395] [2021-11-05 15:42:27,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935757395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:27,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:27,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:27,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088568017] [2021-11-05 15:42:27,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:27,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:27,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:27,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:27,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:27,840 INFO L87 Difference]: Start difference. First operand 809 states and 1247 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-05 15:42:29,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:30,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:30,116 INFO L93 Difference]: Finished difference Result 1611 states and 2489 transitions. [2021-11-05 15:42:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:30,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 35 [2021-11-05 15:42:30,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:30,119 INFO L225 Difference]: With dead ends: 1611 [2021-11-05 15:42:30,120 INFO L226 Difference]: Without dead ends: 805 [2021-11-05 15:42:30,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:30,122 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 309 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2111.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.62ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2248.00ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:30,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 569 Invalid, 15 Unknown, 0 Unchecked, 1.62ms Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2248.00ms Time] [2021-11-05 15:42:30,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2021-11-05 15:42:30,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 803. [2021-11-05 15:42:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 799 states have (on average 1.5456821026282854) internal successors, (1235), 802 states have internal predecessors, (1235), 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) [2021-11-05 15:42:30,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1235 transitions. [2021-11-05 15:42:30,145 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1235 transitions. Word has length 35 [2021-11-05 15:42:30,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:30,145 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 1235 transitions. [2021-11-05 15:42:30,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-05 15:42:30,146 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1235 transitions. [2021-11-05 15:42:30,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 15:42:30,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:30,147 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:30,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 15:42:30,147 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:30,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1190540448, now seen corresponding path program 1 times [2021-11-05 15:42:30,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:30,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821299258] [2021-11-05 15:42:30,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:30,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 15:42:30,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:30,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821299258] [2021-11-05 15:42:30,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821299258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:30,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:30,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:30,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536882448] [2021-11-05 15:42:30,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:30,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:30,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:30,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:30,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:30,288 INFO L87 Difference]: Start difference. First operand 803 states and 1235 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-05 15:42:32,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:32,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:32,464 INFO L93 Difference]: Finished difference Result 803 states and 1235 transitions. [2021-11-05 15:42:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:32,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 37 [2021-11-05 15:42:32,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:32,467 INFO L225 Difference]: With dead ends: 803 [2021-11-05 15:42:32,467 INFO L226 Difference]: Without dead ends: 801 [2021-11-05 15:42:32,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:32,468 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2058.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2158.39ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:32,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 644 Invalid, 6 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2158.39ms Time] [2021-11-05 15:42:32,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2021-11-05 15:42:32,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2021-11-05 15:42:32,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 798 states have (on average 1.543859649122807) internal successors, (1232), 800 states have internal predecessors, (1232), 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) [2021-11-05 15:42:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1232 transitions. [2021-11-05 15:42:32,490 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1232 transitions. Word has length 37 [2021-11-05 15:42:32,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:32,490 INFO L470 AbstractCegarLoop]: Abstraction has 801 states and 1232 transitions. [2021-11-05 15:42:32,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-05 15:42:32,490 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1232 transitions. [2021-11-05 15:42:32,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 15:42:32,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:32,492 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:32,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 15:42:32,492 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:32,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:32,493 INFO L85 PathProgramCache]: Analyzing trace with hash 583254703, now seen corresponding path program 1 times [2021-11-05 15:42:32,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:32,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048682057] [2021-11-05 15:42:32,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:32,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 15:42:34,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:34,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048682057] [2021-11-05 15:42:34,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048682057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:34,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:34,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:42:34,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568559261] [2021-11-05 15:42:34,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:34,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:42:34,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:34,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:42:34,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:42:34,146 INFO L87 Difference]: Start difference. First operand 801 states and 1232 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-05 15:42:36,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:42:36,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:36,493 INFO L93 Difference]: Finished difference Result 1307 states and 2000 transitions. [2021-11-05 15:42:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:42:36,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-05 15:42:36,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:36,495 INFO L225 Difference]: With dead ends: 1307 [2021-11-05 15:42:36,496 INFO L226 Difference]: Without dead ends: 501 [2021-11-05 15:42:36,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 109.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:42:36,497 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 21 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2076.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.50ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2263.86ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:36,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 977 Invalid, 14 Unknown, 0 Unchecked, 1.50ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2263.86ms Time] [2021-11-05 15:42:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-11-05 15:42:36,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 466. [2021-11-05 15:42:36,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 463 states have (on average 1.5464362850971922) internal successors, (716), 465 states have internal predecessors, (716), 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) [2021-11-05 15:42:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 716 transitions. [2021-11-05 15:42:36,521 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 716 transitions. Word has length 43 [2021-11-05 15:42:36,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:36,521 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 716 transitions. [2021-11-05 15:42:36,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-05 15:42:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 716 transitions. [2021-11-05 15:42:36,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-05 15:42:36,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:36,523 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:36,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 15:42:36,523 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:36,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:36,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1739223835, now seen corresponding path program 1 times [2021-11-05 15:42:36,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:36,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740105732] [2021-11-05 15:42:36,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:36,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 15:42:37,870 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-05 15:42:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 15:42:39,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-05 15:42:39,141 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-05 15:42:39,141 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2021-11-05 15:42:39,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2021-11-05 15:42:39,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2021-11-05 15:42:39,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2021-11-05 15:42:39,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2021-11-05 15:42:39,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2021-11-05 15:42:39,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2021-11-05 15:42:39,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2021-11-05 15:42:39,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2021-11-05 15:42:39,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2021-11-05 15:42:39,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2021-11-05 15:42:39,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 15:42:39,152 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:39,154 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 15:42:39,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 03:42:39 BoogieIcfgContainer [2021-11-05 15:42:39,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 15:42:39,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 15:42:39,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 15:42:39,624 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 15:42:39,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:42:11" (3/4) ... [2021-11-05 15:42:39,627 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-05 15:42:39,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 15:42:39,627 INFO L158 Benchmark]: Toolchain (without parser) took 38327.47ms. Allocated memory was 67.1MB in the beginning and 415.2MB in the end (delta: 348.1MB). Free memory was 40.1MB in the beginning and 163.5MB in the end (delta: -123.4MB). Peak memory consumption was 223.0MB. Max. memory is 16.1GB. [2021-11-05 15:42:39,627 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 15:42:39,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1823.20ms. Allocated memory was 67.1MB in the beginning and 117.4MB in the end (delta: 50.3MB). Free memory was 39.8MB in the beginning and 68.8MB in the end (delta: -29.0MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2021-11-05 15:42:39,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 171.55ms. Allocated memory is still 117.4MB. Free memory was 68.8MB in the beginning and 56.5MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-05 15:42:39,628 INFO L158 Benchmark]: Boogie Preprocessor took 88.53ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 46.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-05 15:42:39,629 INFO L158 Benchmark]: RCFGBuilder took 8492.98ms. Allocated memory was 117.4MB in the beginning and 346.0MB in the end (delta: 228.6MB). Free memory was 46.0MB in the beginning and 100.9MB in the end (delta: -54.9MB). Peak memory consumption was 187.3MB. Max. memory is 16.1GB. [2021-11-05 15:42:39,629 INFO L158 Benchmark]: TraceAbstraction took 27743.04ms. Allocated memory was 346.0MB in the beginning and 415.2MB in the end (delta: 69.2MB). Free memory was 99.9MB in the beginning and 163.5MB in the end (delta: -63.6MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2021-11-05 15:42:39,629 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 415.2MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 15:42:39,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1823.20ms. Allocated memory was 67.1MB in the beginning and 117.4MB in the end (delta: 50.3MB). Free memory was 39.8MB in the beginning and 68.8MB in the end (delta: -29.0MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 171.55ms. Allocated memory is still 117.4MB. Free memory was 68.8MB in the beginning and 56.5MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.53ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 46.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 8492.98ms. Allocated memory was 117.4MB in the beginning and 346.0MB in the end (delta: 228.6MB). Free memory was 46.0MB in the beginning and 100.9MB in the end (delta: -54.9MB). Peak memory consumption was 187.3MB. Max. memory is 16.1GB. * TraceAbstraction took 27743.04ms. Allocated memory was 346.0MB in the beginning and 415.2MB in the end (delta: 69.2MB). Free memory was 99.9MB in the beginning and 163.5MB in the end (delta: -63.6MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 415.2MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 3473. Possible FailurePath: [L3298] int ldv_state_variable_3 ; [L3299] int ldv_state_variable_1 ; [L3300] int ldv_state_variable_2 ; [L3301] int ref_cnt ; [L3302] int ldv_state_variable_0 ; [L3412] int rc_core_debug ; [L3472] static struct list_head rc_map_list = {& rc_map_list, & rc_map_list}; [L3473-L3474] static spinlock_t rc_map_lock = {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "rc_map_lock", 0, 0UL}}}}; [L3551] static struct rc_map_table empty[1U] = { {42U, 152U}}; [L3552-L3559] static struct rc_map_list empty_map = {{0, 0}, {(struct rc_map_table *)(& empty), 1U, 0U, 0U, 0, "rc-empty", {{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}}}; [L4237-L4238] static struct class ir_input_class = {"rc", 0, 0, 0, 0, 0, 0, & ir_devnode, 0, 0, 0, 0, 0, 0, 0, 0}; [L4239-L4251] static struct __anonstruct_proto_names_168 proto_names[12U] = { {0ULL, (char *)"none"}, {2ULL, (char *)"other"}, {1ULL, (char *)"unknown"}, {24ULL, (char *)"rc-5"}, {1024ULL, (char *)"nec"}, {253952ULL, (char *)"rc-6"}, {64ULL, (char *)"jvc"}, {896ULL, (char *)"sony"}, {32ULL, (char *)"rc-5-sz"}, {2048ULL, (char *)"sanyo"}, {4096ULL, (char *)"mce_kbd"}, {4ULL, (char *)"lirc"}}; [L4578-L4580] static struct device_attribute dev_attr_protocols = {{"protocols", 420U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_protocols, & store_protocols}; [L4581] static struct attribute *rc_dev_attrs[2U] = { & dev_attr_protocols.attr, 0}; [L4582] static struct attribute_group rc_dev_attr_grp = {0, 0, (struct attribute **)(& rc_dev_attrs)}; [L4583] static struct attribute_group const *rc_dev_attr_groups[2U] = { (struct attribute_group const *)(& rc_dev_attr_grp), 0}; [L4584-L4585] static struct device_type rc_dev_type = {0, (struct attribute_group const **)(& rc_dev_attr_groups), & rc_dev_uevent, 0, & rc_dev_release, 0}; [L4884] char *ldvarg3 ; [L4885] struct device *dev_attr_protocols_group0 ; [L4886] struct kobj_uevent_env *ldvarg0 ; [L4887] char *ldvarg5 ; [L4888] struct device *ldvarg1 ; [L4889] int ldv_retval_0 ; [L4890] size_t ldvarg4 ; [L4892] struct device_attribute *dev_attr_protocols_group1 ; [L4894] struct device *rc_dev_type_group0 ; [L4895] umode_t *ldvarg2 ; [L5297] static struct list_head ir_raw_client_list = {& ir_raw_client_list, & ir_raw_client_list}; [L5298-L5301] static struct mutex ir_raw_handler_lock = {{1}, {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "ir_raw_handler_lock.wait_lock", 0, 0UL}}}}, {& ir_raw_handler_lock.wait_list, & ir_raw_handler_lock.wait_list}, 0, 0, (void *)(& ir_raw_handler_lock), {0, {0, 0}, "ir_raw_handler_lock", 0, 0UL}}; [L5302] static struct list_head ir_raw_handler_list = {& ir_raw_handler_list, & ir_raw_handler_list}; [L5303] static u64 available_protocols ; [L5304] static struct work_struct wq_load ; [L6040] static int ldv_mutex_cred_guard_mutex_of_signal_struct ; [L6143] static int ldv_mutex_ir_raw_handler_lock ; [L6245] static int ldv_mutex_lock ; [L6347] static int ldv_mutex_lock_of_rc_dev ; [L6449] static int ldv_mutex_mutex_of_device ; VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:0}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=0, ldv_mutex_ir_raw_handler_lock=0, ldv_mutex_lock=0, ldv_mutex_lock_of_rc_dev=0, ldv_mutex_mutex_of_device=0, ldv_retval_0=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4898] int tmp ; [L4899] int tmp___0 ; [L4900] int tmp___1 ; [L4901] int tmp___2 ; [L4902] int tmp___3 ; [L4904] ldvarg0 = (struct kobj_uevent_env*) __VERIFIER_nondet_long () [L4905] ldvarg1 = (struct device*) __VERIFIER_nondet_long () [L4906] ldvarg2 = (umode_t *) __VERIFIER_nondet_long () [L4907] ldvarg3 = (char*) __VERIFIER_nondet_long () [L4908] ldvarg4 = (size_t) __VERIFIER_nondet_long () [L4909] ldvarg5 = (char*) __VERIFIER_nondet_long () [L4910] dev_attr_protocols_group0 = (struct device *)__VERIFIER_nondet_long () [L4911] dev_attr_protocols_group1 = (struct device_attribute *)__VERIFIER_nondet_long () [L4912] rc_dev_type_group0 = (struct device*) __VERIFIER_nondet_long () [L6554] ldv_mutex_cred_guard_mutex_of_signal_struct = 1 [L6555] ldv_mutex_ir_raw_handler_lock = 1 [L6556] ldv_mutex_lock = 1 [L6557] ldv_mutex_lock_of_rc_dev = 1 [L6558] ldv_mutex_mutex_of_device = 1 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4914] ldv_state_variable_1 = 0 [L4915] ref_cnt = 0 [L4916] ldv_state_variable_0 = 1 [L4917] ldv_state_variable_3 = 0 [L4918] ldv_state_variable_2 = 0 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4962] COND TRUE ldv_state_variable_0 != 0 [L4963] tmp___1 = __VERIFIER_nondet_int() [L4965] case 0: [L4973] case 1: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4974] COND TRUE ldv_state_variable_0 == 1 [L4861] int rc ; [L4862] struct lock_class_key __key ; [L4863] int tmp ; [L6590] return __VERIFIER_nondet_int(); [L4865] tmp = __class_register(& ir_input_class, & __key) [L4866] rc = tmp VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4867] COND FALSE !(rc != 0) [L3236] head->prev [L3539] return (0); VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4873] return (0); [L4873] return (0); VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4975] ldv_retval_0 = rc_core_init() [L4976] COND TRUE ldv_retval_0 == 0 [L4977] ldv_state_variable_0 = 3 [L4978] ldv_state_variable_2 = 1 [L4979] ldv_state_variable_3 = 1 [L4980] ldv_state_variable_1 = 1 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4983] COND FALSE !(ldv_retval_0 != 0) VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: [L5028] case 1: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5029] COND TRUE ldv_state_variable_2 == 1 [L4254] struct rc_dev *dev ; [L4255] struct device const *__mptr ; [L4256] u64 allowed ; [L4257] u64 enabled ; [L4258] char *tmp ; [L4259] int i ; [L4260] struct _ddebug descriptor ; [L4261] long tmp___0 ; [L4262] int tmp___1 ; [L4263] int tmp___2 ; [L4265] __mptr = (struct device const *)device [L4266] dev = (struct rc_dev *)__mptr [L4267] tmp = buf VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4268] COND FALSE !((unsigned long )dev == (unsigned long )((struct rc_dev *)0)) [L6383] COND TRUE ldv_mutex_lock_of_rc_dev == 1 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L6387] ldv_mutex_lock_of_rc_dev = 2 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4273] EXPR dev->driver_type VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4273] COND FALSE !((unsigned int )dev->driver_type == 0U) [L4277] EXPR dev->raw VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4277] COND FALSE !((unsigned long )dev->raw != (unsigned long )((struct ir_raw_event_ctrl *)0)) [L4281] return (-19L); [L4281] return (-19L); VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5031] ldv_state_variable_2 = 1 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5021] COND TRUE ldv_state_variable_2 == 1 [L4333] struct rc_dev *dev ; [L4334] struct device const *__mptr ; [L4335] bool enable ; [L4336] bool disable ; [L4337] char const *tmp ; [L4338] u64 type ; [L4339] u64 mask ; [L4340] int rc ; [L4341] int i ; [L4342] int count ; [L4343] unsigned long flags ; [L4344] ssize_t ret ; [L4345] struct _ddebug descriptor ; [L4346] long tmp___0 ; [L4347] int tmp___1 ; [L4348] struct _ddebug descriptor___0 ; [L4349] long tmp___2 ; [L4350] char *tmp___3 ; [L4351] struct _ddebug descriptor___1 ; [L4352] long tmp___4 ; [L4353] struct _ddebug descriptor___2 ; [L4354] long tmp___5 ; [L4355] raw_spinlock_t *tmp___6 ; [L4356] struct _ddebug descriptor___3 ; [L4357] long tmp___7 ; [L4359] __mptr = (struct device const *)device [L4360] dev = (struct rc_dev *)__mptr [L4361] count = 0 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4362] COND FALSE !((unsigned long )dev == (unsigned long )((struct rc_dev *)0)) [L6383] COND FALSE !(ldv_mutex_lock_of_rc_dev == 1) VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L6023] reach_error() VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 27227.90ms, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 34.96ms, AutomataDifference: 20550.41ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 18.08ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 2503 SdHoareTripleChecker+Valid, 19937.49ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2503 mSDsluCounter, 6126 SdHoareTripleChecker+Invalid, 18810.98ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2080 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 4046 mSDtfsCounter, 69 mSolverCounterSat, 23.35ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 216.08ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=820occurred in iteration=7, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 247.87ms AutomataMinimizationTime, 11 MinimizatonAttempts, 83 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 158.76ms SsaConstructionTime, 3498.07ms SatisfiabilityAnalysisTime, 1150.93ms InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 19/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-05 15:42:39,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 15:42:41,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 15:42:41,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 15:42:41,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 15:42:41,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 15:42:41,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 15:42:41,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 15:42:41,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 15:42:41,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 15:42:41,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 15:42:41,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 15:42:41,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 15:42:41,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 15:42:41,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 15:42:41,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 15:42:41,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 15:42:41,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 15:42:41,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 15:42:41,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 15:42:41,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 15:42:41,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 15:42:41,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 15:42:41,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 15:42:41,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 15:42:41,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 15:42:41,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 15:42:41,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 15:42:41,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 15:42:41,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 15:42:41,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 15:42:41,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 15:42:41,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 15:42:41,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 15:42:41,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 15:42:41,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 15:42:41,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 15:42:41,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 15:42:41,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 15:42:41,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 15:42:41,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 15:42:41,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 15:42:41,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 15:42:41,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 15:42:41,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 15:42:41,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 15:42:41,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 15:42:41,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 15:42:41,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 15:42:41,669 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 15:42:41,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 15:42:41,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 15:42:41,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 15:42:41,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 15:42:41,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 15:42:41,671 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 15:42:41,671 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 15:42:41,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 15:42:41,672 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 15:42:41,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 15:42:41,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 15:42:41,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 15:42:41,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 15:42:41,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:42:41,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 15:42:41,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 15:42:41,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 15:42:41,673 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 15:42:41,683 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 15:42:41,683 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 15:42:41,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 15:42:41,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 15:42:41,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 15:42:41,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 15:42:41,684 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-11-05 15:42:41,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 15:42:41,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 15:42:41,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 15:42:41,990 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 15:42:41,990 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 15:42:41,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-05 15:42:42,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1112d6a97/5d79ef88260e4414977661a271e8312d/FLAG2b2d832a2 [2021-11-05 15:42:42,747 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 15:42:42,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-05 15:42:42,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1112d6a97/5d79ef88260e4414977661a271e8312d/FLAG2b2d832a2 [2021-11-05 15:42:43,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1112d6a97/5d79ef88260e4414977661a271e8312d [2021-11-05 15:42:43,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 15:42:43,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 15:42:43,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 15:42:43,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 15:42:43,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 15:42:43,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:42:43" (1/1) ... [2021-11-05 15:42:43,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b1209c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:43, skipping insertion in model container [2021-11-05 15:42:43,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:42:43" (1/1) ... [2021-11-05 15:42:43,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 15:42:43,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 15:42:44,100 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-05 15:42:44,173 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-05 15:42:44,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:42:44,226 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 15:42:44,476 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-05 15:42:44,497 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-05 15:42:44,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:42:44,580 INFO L208 MainTranslator]: Completed translation [2021-11-05 15:42:44,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44 WrapperNode [2021-11-05 15:42:44,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 15:42:44,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 15:42:44,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 15:42:44,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 15:42:44,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 15:42:44,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 15:42:44,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 15:42:44,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 15:42:44,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 15:42:44,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 15:42:44,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 15:42:44,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 15:42:44,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (1/1) ... [2021-11-05 15:42:44,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:42:44,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 15:42:45,000 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) [2021-11-05 15:42:45,016 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 [2021-11-05 15:42:45,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 15:42:45,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-05 15:42:45,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-05 15:42:45,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 15:42:45,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-05 15:42:45,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 15:42:45,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 15:42:45,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 15:42:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-05 15:42:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-05 15:42:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-05 15:42:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 15:42:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-05 15:42:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 15:42:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-05 15:42:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 15:42:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-05 15:42:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-05 15:42:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-05 15:42:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-05 15:42:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-05 15:42:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-05 15:42:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 15:42:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 15:42:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-05 15:42:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-05 15:42:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-05 15:42:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-05 15:42:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 15:42:45,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 15:42:58,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 15:42:58,650 INFO L299 CfgBuilder]: Removed 182 assume(true) statements. [2021-11-05 15:42:58,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:42:58 BoogieIcfgContainer [2021-11-05 15:42:58,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 15:42:58,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 15:42:58,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 15:42:58,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 15:42:58,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:42:43" (1/3) ... [2021-11-05 15:42:58,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721d00ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:42:58, skipping insertion in model container [2021-11-05 15:42:58,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:42:44" (2/3) ... [2021-11-05 15:42:58,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721d00ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:42:58, skipping insertion in model container [2021-11-05 15:42:58,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:42:58" (3/3) ... [2021-11-05 15:42:58,658 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-05 15:42:58,662 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 15:42:58,663 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-05 15:42:58,706 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 15:42:58,711 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 [2021-11-05 15:42:58,713 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-05 15:42:58,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 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) [2021-11-05 15:42:58,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-05 15:42:58,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:58,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:58,741 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:42:58,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1013367014, now seen corresponding path program 1 times [2021-11-05 15:42:58,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:42:58,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972962229] [2021-11-05 15:42:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:58,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:42:58,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:42:58,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:42:58,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 15:43:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:01,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:01,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:01,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:01,570 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:01,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972962229] [2021-11-05 15:43:01,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972962229] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:01,570 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:01,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 15:43:01,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273353269] [2021-11-05 15:43:01,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:01,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:01,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:01,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:01,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:01,600 INFO L87 Difference]: Start difference. First operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-05 15:43:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:01,963 INFO L93 Difference]: Finished difference Result 576 states and 851 transitions. [2021-11-05 15:43:01,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:43:01,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-11-05 15:43:01,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:01,976 INFO L225 Difference]: With dead ends: 576 [2021-11-05 15:43:01,976 INFO L226 Difference]: Without dead ends: 325 [2021-11-05 15:43:01,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:01,983 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 121 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 249.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.15ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 307.56ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:01,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 685 Invalid, 11 Unknown, 0 Unchecked, 6.15ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 307.56ms Time] [2021-11-05 15:43:02,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-11-05 15:43:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 306. [2021-11-05 15:43:02,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 295 states have (on average 1.5186440677966102) internal successors, (448), 305 states have internal predecessors, (448), 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) [2021-11-05 15:43:02,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 448 transitions. [2021-11-05 15:43:02,061 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 448 transitions. Word has length 14 [2021-11-05 15:43:02,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:02,062 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 448 transitions. [2021-11-05 15:43:02,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-05 15:43:02,063 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 448 transitions. [2021-11-05 15:43:02,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-05 15:43:02,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:02,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:02,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:02,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:02,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:02,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:02,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1696174329, now seen corresponding path program 1 times [2021-11-05 15:43:02,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:02,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727582755] [2021-11-05 15:43:02,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:02,295 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:02,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:02,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:02,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 15:43:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:04,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:04,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:04,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:04,912 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:04,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727582755] [2021-11-05 15:43:04,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727582755] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:04,912 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:04,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 15:43:04,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134682872] [2021-11-05 15:43:04,913 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:04,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:43:04,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:43:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:43:04,914 INFO L87 Difference]: Start difference. First operand 306 states and 448 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-05 15:43:07,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:07,303 INFO L93 Difference]: Finished difference Result 1138 states and 1697 transitions. [2021-11-05 15:43:07,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 15:43:07,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 15 [2021-11-05 15:43:07,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:07,314 INFO L225 Difference]: With dead ends: 1138 [2021-11-05 15:43:07,314 INFO L226 Difference]: Without dead ends: 835 [2021-11-05 15:43:07,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.64ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:43:07,338 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 629 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2278.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.48ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2347.14ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:07,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 1717 Invalid, 30 Unknown, 0 Unchecked, 4.48ms Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2347.14ms Time] [2021-11-05 15:43:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2021-11-05 15:43:07,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 811. [2021-11-05 15:43:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 800 states have (on average 1.54) internal successors, (1232), 810 states have internal predecessors, (1232), 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) [2021-11-05 15:43:07,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1232 transitions. [2021-11-05 15:43:07,395 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1232 transitions. Word has length 15 [2021-11-05 15:43:07,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:07,395 INFO L470 AbstractCegarLoop]: Abstraction has 811 states and 1232 transitions. [2021-11-05 15:43:07,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-05 15:43:07,395 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1232 transitions. [2021-11-05 15:43:07,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 15:43:07,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:07,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:07,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:07,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:07,624 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:07,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:07,624 INFO L85 PathProgramCache]: Analyzing trace with hash -724212375, now seen corresponding path program 1 times [2021-11-05 15:43:07,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:07,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124368281] [2021-11-05 15:43:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:07,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:07,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:07,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:07,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 15:43:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:09,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 15:43:09,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:10,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:10,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:10,083 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:10,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124368281] [2021-11-05 15:43:10,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124368281] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:10,083 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:10,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-05 15:43:10,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021035783] [2021-11-05 15:43:10,084 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:10,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:43:10,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:10,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:43:10,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:43:10,085 INFO L87 Difference]: Start difference. First operand 811 states and 1232 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-11-05 15:43:12,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:12,412 INFO L93 Difference]: Finished difference Result 1457 states and 2198 transitions. [2021-11-05 15:43:12,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:43:12,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2021-11-05 15:43:12,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:12,415 INFO L225 Difference]: With dead ends: 1457 [2021-11-05 15:43:12,415 INFO L226 Difference]: Without dead ends: 649 [2021-11-05 15:43:12,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.22ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:43:12,417 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 47 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2218.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.05ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2278.27ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:12,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1019 Invalid, 15 Unknown, 0 Unchecked, 4.05ms Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2278.27ms Time] [2021-11-05 15:43:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-11-05 15:43:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 605. [2021-11-05 15:43:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 594 states have (on average 1.5471380471380471) internal successors, (919), 604 states have internal predecessors, (919), 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) [2021-11-05 15:43:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 919 transitions. [2021-11-05 15:43:12,433 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 919 transitions. Word has length 17 [2021-11-05 15:43:12,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:12,433 INFO L470 AbstractCegarLoop]: Abstraction has 605 states and 919 transitions. [2021-11-05 15:43:12,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-11-05 15:43:12,434 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 919 transitions. [2021-11-05 15:43:12,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 15:43:12,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:12,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:12,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:12,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:12,651 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:12,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:12,652 INFO L85 PathProgramCache]: Analyzing trace with hash -724152793, now seen corresponding path program 1 times [2021-11-05 15:43:12,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:12,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035877586] [2021-11-05 15:43:12,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:12,655 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:12,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:12,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:12,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 15:43:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:14,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 1252 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:14,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:15,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:15,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:15,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035877586] [2021-11-05 15:43:15,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035877586] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:15,239 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:15,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 15:43:15,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936525123] [2021-11-05 15:43:15,239 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:15,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:15,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:15,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:15,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:15,240 INFO L87 Difference]: Start difference. First operand 605 states and 919 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-05 15:43:17,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:17,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:17,515 INFO L93 Difference]: Finished difference Result 605 states and 919 transitions. [2021-11-05 15:43:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:43:17,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-05 15:43:17,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:17,518 INFO L225 Difference]: With dead ends: 605 [2021-11-05 15:43:17,518 INFO L226 Difference]: Without dead ends: 603 [2021-11-05 15:43:17,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:17,524 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 327 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2194.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2254.92ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:17,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 341 Invalid, 2 Unknown, 0 Unchecked, 2.10ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2254.92ms Time] [2021-11-05 15:43:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-11-05 15:43:17,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2021-11-05 15:43:17,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 593 states have (on average 1.5463743676222597) internal successors, (917), 602 states have internal predecessors, (917), 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) [2021-11-05 15:43:17,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 917 transitions. [2021-11-05 15:43:17,544 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 917 transitions. Word has length 17 [2021-11-05 15:43:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:17,548 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 917 transitions. [2021-11-05 15:43:17,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-05 15:43:17,548 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 917 transitions. [2021-11-05 15:43:17,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-05 15:43:17,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:17,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:17,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:17,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:17,779 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:17,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash -973900918, now seen corresponding path program 1 times [2021-11-05 15:43:17,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:17,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435715181] [2021-11-05 15:43:17,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:17,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:17,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:17,783 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:17,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 15:43:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:20,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:20,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:20,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:20,361 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:20,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435715181] [2021-11-05 15:43:20,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435715181] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:20,361 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:20,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 15:43:20,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229279471] [2021-11-05 15:43:20,362 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:20,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:20,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:20,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:20,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:20,363 INFO L87 Difference]: Start difference. First operand 603 states and 917 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-05 15:43:22,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:22,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:22,662 INFO L93 Difference]: Finished difference Result 603 states and 917 transitions. [2021-11-05 15:43:22,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:43:22,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-05 15:43:22,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:22,665 INFO L225 Difference]: With dead ends: 603 [2021-11-05 15:43:22,665 INFO L226 Difference]: Without dead ends: 599 [2021-11-05 15:43:22,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:22,666 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 315 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2200.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.95ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2282.20ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:22,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 339 Invalid, 8 Unknown, 0 Unchecked, 0.95ms Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2282.20ms Time] [2021-11-05 15:43:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-11-05 15:43:22,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-11-05 15:43:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 591 states have (on average 1.5431472081218274) internal successors, (912), 598 states have internal predecessors, (912), 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) [2021-11-05 15:43:22,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 912 transitions. [2021-11-05 15:43:22,685 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 912 transitions. Word has length 18 [2021-11-05 15:43:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:22,686 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 912 transitions. [2021-11-05 15:43:22,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-05 15:43:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 912 transitions. [2021-11-05 15:43:22,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-05 15:43:22,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:22,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:22,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:22,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:22,908 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:22,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:22,908 INFO L85 PathProgramCache]: Analyzing trace with hash -126158191, now seen corresponding path program 1 times [2021-11-05 15:43:22,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:22,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069265462] [2021-11-05 15:43:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:22,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:22,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:22,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:22,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 15:43:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:25,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:25,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:25,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:25,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:25,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:25,423 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:25,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069265462] [2021-11-05 15:43:25,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069265462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:25,423 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:25,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 15:43:25,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673064957] [2021-11-05 15:43:25,423 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:25,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:25,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:25,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:25,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:25,425 INFO L87 Difference]: Start difference. First operand 599 states and 912 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-05 15:43:27,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:27,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:27,706 INFO L93 Difference]: Finished difference Result 599 states and 912 transitions. [2021-11-05 15:43:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:43:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-05 15:43:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:27,709 INFO L225 Difference]: With dead ends: 599 [2021-11-05 15:43:27,709 INFO L226 Difference]: Without dead ends: 597 [2021-11-05 15:43:27,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:27,710 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 319 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2182.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2264.03ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:27,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 335 Invalid, 2 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2264.03ms Time] [2021-11-05 15:43:27,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-11-05 15:43:27,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2021-11-05 15:43:27,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 590 states have (on average 1.5423728813559323) internal successors, (910), 596 states have internal predecessors, (910), 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) [2021-11-05 15:43:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 910 transitions. [2021-11-05 15:43:27,728 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 910 transitions. Word has length 19 [2021-11-05 15:43:27,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:27,728 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 910 transitions. [2021-11-05 15:43:27,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-05 15:43:27,728 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 910 transitions. [2021-11-05 15:43:27,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-05 15:43:27,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:27,729 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] [2021-11-05 15:43:27,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:27,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:27,944 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:27,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:27,944 INFO L85 PathProgramCache]: Analyzing trace with hash 384062580, now seen corresponding path program 1 times [2021-11-05 15:43:27,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:27,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380438006] [2021-11-05 15:43:27,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:27,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:27,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:27,947 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:27,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-05 15:43:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:30,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:30,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:30,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:30,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:30,526 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:30,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1380438006] [2021-11-05 15:43:30,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1380438006] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:30,526 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:30,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 15:43:30,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374513543] [2021-11-05 15:43:30,526 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:30,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:30,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:30,527 INFO L87 Difference]: Start difference. First operand 597 states and 910 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-05 15:43:32,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:32,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:32,843 INFO L93 Difference]: Finished difference Result 864 states and 1344 transitions. [2021-11-05 15:43:32,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:43:32,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-05 15:43:32,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:32,846 INFO L225 Difference]: With dead ends: 864 [2021-11-05 15:43:32,847 INFO L226 Difference]: Without dead ends: 858 [2021-11-05 15:43:32,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:32,847 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 123 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2223.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2290.55ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:32,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 646 Invalid, 20 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2290.55ms Time] [2021-11-05 15:43:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-11-05 15:43:32,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2021-11-05 15:43:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 851 states have (on average 1.5699177438307874) internal successors, (1336), 857 states have internal predecessors, (1336), 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) [2021-11-05 15:43:32,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1336 transitions. [2021-11-05 15:43:32,874 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1336 transitions. Word has length 20 [2021-11-05 15:43:32,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:32,874 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1336 transitions. [2021-11-05 15:43:32,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-05 15:43:32,874 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1336 transitions. [2021-11-05 15:43:32,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-05 15:43:32,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:32,875 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] [2021-11-05 15:43:32,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-05 15:43:33,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:33,096 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:33,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:33,096 INFO L85 PathProgramCache]: Analyzing trace with hash -978962693, now seen corresponding path program 1 times [2021-11-05 15:43:33,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:33,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183970317] [2021-11-05 15:43:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:33,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:33,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:33,100 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:33,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-05 15:43:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:35,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:35,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:35,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:35,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:35,712 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:35,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183970317] [2021-11-05 15:43:35,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183970317] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:35,712 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:35,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 15:43:35,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532314441] [2021-11-05 15:43:35,713 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:35,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:35,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:35,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:35,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:35,714 INFO L87 Difference]: Start difference. First operand 858 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-05 15:43:37,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:37,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:37,924 INFO L93 Difference]: Finished difference Result 858 states and 1336 transitions. [2021-11-05 15:43:38,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:43:38,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-05 15:43:38,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:38,012 INFO L225 Difference]: With dead ends: 858 [2021-11-05 15:43:38,012 INFO L226 Difference]: Without dead ends: 844 [2021-11-05 15:43:38,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:38,013 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 315 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2185.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2186.87ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:38,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 334 Invalid, 1 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2186.87ms Time] [2021-11-05 15:43:38,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-11-05 15:43:38,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 790. [2021-11-05 15:43:38,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 784 states have (on average 1.5650510204081634) internal successors, (1227), 789 states have internal predecessors, (1227), 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) [2021-11-05 15:43:38,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1227 transitions. [2021-11-05 15:43:38,039 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1227 transitions. Word has length 21 [2021-11-05 15:43:38,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:38,041 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1227 transitions. [2021-11-05 15:43:38,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-05 15:43:38,041 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1227 transitions. [2021-11-05 15:43:38,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 15:43:38,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:38,043 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:38,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:38,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:38,264 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:38,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:38,264 INFO L85 PathProgramCache]: Analyzing trace with hash -647396756, now seen corresponding path program 1 times [2021-11-05 15:43:38,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:38,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128287073] [2021-11-05 15:43:38,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:38,266 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:38,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:38,267 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:38,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-05 15:43:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:40,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:40,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:40,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 15:43:40,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 15:43:40,831 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:40,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128287073] [2021-11-05 15:43:40,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128287073] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:40,831 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:40,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 15:43:40,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455251384] [2021-11-05 15:43:40,831 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:40,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:40,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:40,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:40,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:40,832 INFO L87 Difference]: Start difference. First operand 790 states and 1227 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-05 15:43:43,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:43,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:43,145 INFO L93 Difference]: Finished difference Result 1519 states and 2361 transitions. [2021-11-05 15:43:43,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:43:43,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 40 [2021-11-05 15:43:43,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:43,149 INFO L225 Difference]: With dead ends: 1519 [2021-11-05 15:43:43,149 INFO L226 Difference]: Without dead ends: 786 [2021-11-05 15:43:43,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:43,151 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 309 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2216.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2285.00ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:43,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 565 Invalid, 15 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2285.00ms Time] [2021-11-05 15:43:43,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2021-11-05 15:43:43,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 784. [2021-11-05 15:43:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 780 states have (on average 1.5576923076923077) internal successors, (1215), 783 states have internal predecessors, (1215), 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) [2021-11-05 15:43:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1215 transitions. [2021-11-05 15:43:43,173 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1215 transitions. Word has length 40 [2021-11-05 15:43:43,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:43,174 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1215 transitions. [2021-11-05 15:43:43,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-05 15:43:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1215 transitions. [2021-11-05 15:43:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 15:43:43,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:43,175 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:43,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:43,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:43,391 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:43,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1691861812, now seen corresponding path program 1 times [2021-11-05 15:43:43,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:43,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312539599] [2021-11-05 15:43:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:43,395 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:43,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:43,397 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:43,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-05 15:43:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:45,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 15:43:45,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 15:43:45,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 15:43:45,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 15:43:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 15:43:46,036 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 15:43:46,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312539599] [2021-11-05 15:43:46,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312539599] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:46,036 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:46,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 15:43:46,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023116152] [2021-11-05 15:43:46,036 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:46,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:46,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 15:43:46,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:46,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:46,037 INFO L87 Difference]: Start difference. First operand 784 states and 1215 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-05 15:43:48,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:43:48,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:43:48,398 INFO L93 Difference]: Finished difference Result 784 states and 1215 transitions. [2021-11-05 15:43:48,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:43:48,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-05 15:43:48,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:43:48,402 INFO L225 Difference]: With dead ends: 784 [2021-11-05 15:43:48,402 INFO L226 Difference]: Without dead ends: 782 [2021-11-05 15:43:48,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:48,405 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2265.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2337.77ms IncrementalHoareTripleChecker+Time [2021-11-05 15:43:48,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 644 Invalid, 6 Unknown, 0 Unchecked, 0.79ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2337.77ms Time] [2021-11-05 15:43:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-11-05 15:43:48,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2021-11-05 15:43:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 779 states have (on average 1.5558408215661104) internal successors, (1212), 781 states have internal predecessors, (1212), 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) [2021-11-05 15:43:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1212 transitions. [2021-11-05 15:43:48,431 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1212 transitions. Word has length 42 [2021-11-05 15:43:48,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:48,431 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1212 transitions. [2021-11-05 15:43:48,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-05 15:43:48,432 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1212 transitions. [2021-11-05 15:43:48,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-05 15:43:48,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:48,433 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:48,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-05 15:43:48,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 15:43:48,647 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 15:43:48,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:48,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1739223835, now seen corresponding path program 1 times [2021-11-05 15:43:48,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 15:43:48,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109313971] [2021-11-05 15:43:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:48,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 15:43:48,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 15:43:48,653 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 15:43:48,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process Killed by 15