./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.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 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:54:55,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:54:55,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:54:55,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:54:55,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:54:55,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:54:55,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:54:55,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:54:55,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:54:55,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:54:55,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:54:55,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:54:55,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:54:55,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:54:55,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:54:55,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:54:55,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:54:55,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:54:55,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:54:55,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:54:55,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:54:55,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:54:55,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:54:55,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:54:55,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:54:55,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:54:55,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:54:55,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:54:55,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:54:55,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:54:55,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:54:55,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:54:55,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:54:55,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:54:55,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:54:55,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:54:55,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:54:55,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:54:55,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:54:55,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:54:55,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:54:55,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:54:55,648 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:54:55,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:54:55,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:54:55,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:54:55,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:54:55,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:54:55,650 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:54:55,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:54:55,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:54:55,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:54:55,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:54:55,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:54:55,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:54:55,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:54:55,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:54:55,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:54:55,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:54:55,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:54:55,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:54:55,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:54:55,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:54:55,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:54:55,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:54:55,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:54:55,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:54:55,653 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:54:55,653 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:54:55,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:54:55,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:54:55,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 [2021-11-07 13:54:55,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:54:55,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:54:55,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:54:55,881 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:54:55,881 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:54:55,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 13:54:55,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9ec0e686/21d3cb1e3fff4de98fe23b8fcb3a2d58/FLAGd99166f8b [2021-11-07 13:54:56,590 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:54:56,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 13:54:56,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9ec0e686/21d3cb1e3fff4de98fe23b8fcb3a2d58/FLAGd99166f8b [2021-11-07 13:54:56,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9ec0e686/21d3cb1e3fff4de98fe23b8fcb3a2d58 [2021-11-07 13:54:56,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:54:56,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:54:56,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:54:56,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:54:56,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:54:56,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:54:56" (1/1) ... [2021-11-07 13:54:56,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a6ae17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:56, skipping insertion in model container [2021-11-07 13:54:56,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:54:56" (1/1) ... [2021-11-07 13:54:56,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:54:57,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:54:58,192 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-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2021-11-07 13:54:58,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:54:58,246 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:54:58,527 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-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2021-11-07 13:54:58,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:54:58,596 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:54:58,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58 WrapperNode [2021-11-07 13:54:58,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:54:58,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:54:58,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:54:58,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:54:58,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:54:58,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:54:59,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:54:59,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:54:59,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:54:59,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:54:59,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:54:59,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:55:00,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:55:00,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:55:01,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:55:01,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:55:01,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:55:01,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:55:01,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:55:01,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:55:01,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:55:01,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (1/1) ... [2021-11-07 13:55:01,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:55:01,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:55:01,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 13:55:01,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 13:55:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:55:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:55:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-07 13:55:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-07 13:55:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-07 13:55:02,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-07 13:55:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-07 13:55:02,008 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-07 13:55:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 13:55:02,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 13:55:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2021-11-07 13:55:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2021-11-07 13:55:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-07 13:55:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-07 13:55:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:55:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2021-11-07 13:55:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2021-11-07 13:55:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:55:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2021-11-07 13:55:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2021-11-07 13:55:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-07 13:55:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-07 13:55:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2021-11-07 13:55:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2021-11-07 13:55:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:55:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:55:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-07 13:55:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-07 13:55:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-07 13:55:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-07 13:55:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:55:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-07 13:55:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-07 13:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-07 13:55:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-07 13:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-07 13:55:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-07 13:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:55:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2021-11-07 13:55:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2021-11-07 13:55:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:55:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:55:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:55:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:55:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-07 13:55:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-07 13:55:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-07 13:55:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-07 13:55:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-07 13:55:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-07 13:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-07 13:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 13:55:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:55:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:55:24,757 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:55:24,773 INFO L299 CfgBuilder]: Removed 12774 assume(true) statements. [2021-11-07 13:55:24,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:24 BoogieIcfgContainer [2021-11-07 13:55:24,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:55:24,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:55:24,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:55:24,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:55:24,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:54:56" (1/3) ... [2021-11-07 13:55:24,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaf3ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:55:24, skipping insertion in model container [2021-11-07 13:55:24,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58" (2/3) ... [2021-11-07 13:55:24,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaf3ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:55:24, skipping insertion in model container [2021-11-07 13:55:24,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:24" (3/3) ... [2021-11-07 13:55:24,788 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 13:55:24,791 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:55:24,791 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 13:55:24,858 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:55:24,862 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 13:55:24,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 13:55:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 9787 states, 9721 states have (on average 1.4642526489044336) internal successors, (14234), 9731 states have internal predecessors, (14234), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 13:55:24,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 13:55:24,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:24,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:24,993 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:24,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash -693416129, now seen corresponding path program 1 times [2021-11-07 13:55:25,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:25,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654299780] [2021-11-07 13:55:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:25,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:25,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:25,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654299780] [2021-11-07 13:55:25,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654299780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:25,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:25,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:55:25,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239299825] [2021-11-07 13:55:25,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:25,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 13:55:25,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:25,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 13:55:25,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 13:55:25,394 INFO L87 Difference]: Start difference. First operand has 9787 states, 9721 states have (on average 1.4642526489044336) internal successors, (14234), 9731 states have internal predecessors, (14234), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:25,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:25,656 INFO L93 Difference]: Finished difference Result 19570 states and 28655 transitions. [2021-11-07 13:55:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 13:55:25,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2021-11-07 13:55:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:25,713 INFO L225 Difference]: With dead ends: 19570 [2021-11-07 13:55:25,713 INFO L226 Difference]: Without dead ends: 9774 [2021-11-07 13:55:25,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 13:55:25,750 INFO L933 BasicCegarLoop]: 14291 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14291 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:25,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14291 Invalid, 0 Unknown, 0 Unchecked, 23.93ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 13:55:25,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2021-11-07 13:55:25,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 9774. [2021-11-07 13:55:25,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9774 states, 9709 states have (on average 1.4614275414563807) internal successors, (14189), 9718 states have internal predecessors, (14189), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 13:55:26,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9774 states to 9774 states and 14269 transitions. [2021-11-07 13:55:26,031 INFO L78 Accepts]: Start accepts. Automaton has 9774 states and 14269 transitions. Word has length 47 [2021-11-07 13:55:26,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:26,032 INFO L470 AbstractCegarLoop]: Abstraction has 9774 states and 14269 transitions. [2021-11-07 13:55:26,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:26,032 INFO L276 IsEmpty]: Start isEmpty. Operand 9774 states and 14269 transitions. [2021-11-07 13:55:26,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 13:55:26,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:26,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:26,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:55:26,037 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:26,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash 60748855, now seen corresponding path program 1 times [2021-11-07 13:55:26,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:26,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875500633] [2021-11-07 13:55:26,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:26,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:26,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:26,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875500633] [2021-11-07 13:55:26,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875500633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:26,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:26,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:55:26,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783889611] [2021-11-07 13:55:26,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:26,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:26,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:26,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:26,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:26,333 INFO L87 Difference]: Start difference. First operand 9774 states and 14269 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:33,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:33,433 INFO L93 Difference]: Finished difference Result 29264 states and 42898 transitions. [2021-11-07 13:55:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:55:33,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2021-11-07 13:55:33,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:33,533 INFO L225 Difference]: With dead ends: 29264 [2021-11-07 13:55:33,533 INFO L226 Difference]: Without dead ends: 19518 [2021-11-07 13:55:33,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:33,568 INFO L933 BasicCegarLoop]: 13687 mSDtfsCounter, 13606 mSDsluCounter, 12945 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 1306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4805.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13606 SdHoareTripleChecker+Valid, 26632 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.22ms SdHoareTripleChecker+Time, 1306 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6390.10ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:33,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13606 Valid, 26632 Invalid, 2648 Unknown, 0 Unchecked, 53.22ms Time], IncrementalHoareTripleChecker [1306 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 6390.10ms Time] [2021-11-07 13:55:33,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19518 states. [2021-11-07 13:55:33,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19518 to 19506. [2021-11-07 13:55:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19506 states, 19381 states have (on average 1.4283060729580517) internal successors, (27682), 19395 states have internal predecessors, (27682), 80 states have call successors, (80), 40 states have call predecessors, (80), 40 states have return successors, (152), 74 states have call predecessors, (152), 80 states have call successors, (152) [2021-11-07 13:55:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19506 states to 19506 states and 27914 transitions. [2021-11-07 13:55:34,066 INFO L78 Accepts]: Start accepts. Automaton has 19506 states and 27914 transitions. Word has length 47 [2021-11-07 13:55:34,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:34,068 INFO L470 AbstractCegarLoop]: Abstraction has 19506 states and 27914 transitions. [2021-11-07 13:55:34,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 19506 states and 27914 transitions. [2021-11-07 13:55:34,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 13:55:34,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:34,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:34,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:55:34,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:34,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:34,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1883257875, now seen corresponding path program 1 times [2021-11-07 13:55:34,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:34,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172622297] [2021-11-07 13:55:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:34,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:34,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:34,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:34,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172622297] [2021-11-07 13:55:34,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172622297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:34,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:34,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:55:34,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811201042] [2021-11-07 13:55:34,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:34,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:34,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:34,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:34,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:34,287 INFO L87 Difference]: Start difference. First operand 19506 states and 27914 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:39,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:39,348 INFO L93 Difference]: Finished difference Result 57808 states and 82833 transitions. [2021-11-07 13:55:39,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:55:39,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 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 48 [2021-11-07 13:55:39,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:39,466 INFO L225 Difference]: With dead ends: 57808 [2021-11-07 13:55:39,466 INFO L226 Difference]: Without dead ends: 38330 [2021-11-07 13:55:39,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:39,539 INFO L933 BasicCegarLoop]: 14029 mSDtfsCounter, 13282 mSDsluCounter, 13256 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3219.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13282 SdHoareTripleChecker+Valid, 27285 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.97ms SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4289.51ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:39,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13282 Valid, 27285 Invalid, 1637 Unknown, 0 Unchecked, 41.97ms Time], IncrementalHoareTripleChecker [651 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 4289.51ms Time] [2021-11-07 13:55:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38330 states. [2021-11-07 13:55:40,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38330 to 38319. [2021-11-07 13:55:40,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38319 states, 38074 states have (on average 1.4016651783369227) internal successors, (53367), 38098 states have internal predecessors, (53367), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-07 13:55:40,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38319 states to 38319 states and 53983 transitions. [2021-11-07 13:55:40,487 INFO L78 Accepts]: Start accepts. Automaton has 38319 states and 53983 transitions. Word has length 48 [2021-11-07 13:55:40,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:40,488 INFO L470 AbstractCegarLoop]: Abstraction has 38319 states and 53983 transitions. [2021-11-07 13:55:40,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:40,488 INFO L276 IsEmpty]: Start isEmpty. Operand 38319 states and 53983 transitions. [2021-11-07 13:55:40,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 13:55:40,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:40,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:40,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:55:40,492 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:40,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:40,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1748504639, now seen corresponding path program 1 times [2021-11-07 13:55:40,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:40,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800466780] [2021-11-07 13:55:40,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:40,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:40,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:40,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800466780] [2021-11-07 13:55:40,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800466780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:40,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:40,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:55:40,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549403223] [2021-11-07 13:55:40,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:40,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:40,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:40,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:40,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:40,610 INFO L87 Difference]: Start difference. First operand 38319 states and 53983 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:42,601 INFO L93 Difference]: Finished difference Result 38324 states and 53987 transitions. [2021-11-07 13:55:42,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:55:42,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 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 49 [2021-11-07 13:55:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:42,687 INFO L225 Difference]: With dead ends: 38324 [2021-11-07 13:55:42,687 INFO L226 Difference]: Without dead ends: 38322 [2021-11-07 13:55:42,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:42,708 INFO L933 BasicCegarLoop]: 14355 mSDtfsCounter, 13279 mSDsluCounter, 13255 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1056.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13279 SdHoareTripleChecker+Valid, 27610 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.61ms SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1395.81ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:42,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13279 Valid, 27610 Invalid, 981 Unknown, 0 Unchecked, 27.61ms Time], IncrementalHoareTripleChecker [326 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 1395.81ms Time] [2021-11-07 13:55:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38322 states. [2021-11-07 13:55:43,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38322 to 38320. [2021-11-07 13:55:43,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38320 states, 38075 states have (on average 1.4016546290216678) internal successors, (53368), 38099 states have internal predecessors, (53368), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-07 13:55:43,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38320 states to 38320 states and 53984 transitions. [2021-11-07 13:55:43,520 INFO L78 Accepts]: Start accepts. Automaton has 38320 states and 53984 transitions. Word has length 49 [2021-11-07 13:55:43,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:43,520 INFO L470 AbstractCegarLoop]: Abstraction has 38320 states and 53984 transitions. [2021-11-07 13:55:43,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:43,523 INFO L276 IsEmpty]: Start isEmpty. Operand 38320 states and 53984 transitions. [2021-11-07 13:55:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 13:55:43,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:43,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:43,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:55:43,527 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:43,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:43,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1630974429, now seen corresponding path program 1 times [2021-11-07 13:55:43,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:43,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922969041] [2021-11-07 13:55:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:43,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:43,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:43,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922969041] [2021-11-07 13:55:43,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922969041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:43,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:43,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:55:43,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618795787] [2021-11-07 13:55:43,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:43,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:43,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:43,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:43,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:43,650 INFO L87 Difference]: Start difference. First operand 38320 states and 53984 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:44,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:44,170 INFO L93 Difference]: Finished difference Result 38320 states and 53984 transitions. [2021-11-07 13:55:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:55:44,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 13:55:44,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:44,262 INFO L225 Difference]: With dead ends: 38320 [2021-11-07 13:55:44,263 INFO L226 Difference]: Without dead ends: 38318 [2021-11-07 13:55:44,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:44,284 INFO L933 BasicCegarLoop]: 14266 mSDtfsCounter, 14219 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14219 SdHoareTripleChecker+Valid, 14266 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.46ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.97ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:44,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14219 Valid, 14266 Invalid, 1 Unknown, 0 Unchecked, 14.46ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.97ms Time] [2021-11-07 13:55:44,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38318 states. [2021-11-07 13:55:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38318 to 38318. [2021-11-07 13:55:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38318 states, 38074 states have (on average 1.4016389136943845) internal successors, (53366), 38097 states have internal predecessors, (53366), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-07 13:55:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38318 states to 38318 states and 53982 transitions. [2021-11-07 13:55:45,132 INFO L78 Accepts]: Start accepts. Automaton has 38318 states and 53982 transitions. Word has length 50 [2021-11-07 13:55:45,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:45,133 INFO L470 AbstractCegarLoop]: Abstraction has 38318 states and 53982 transitions. [2021-11-07 13:55:45,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:45,134 INFO L276 IsEmpty]: Start isEmpty. Operand 38318 states and 53982 transitions. [2021-11-07 13:55:45,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 13:55:45,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:45,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:45,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 13:55:45,138 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:45,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:45,139 INFO L85 PathProgramCache]: Analyzing trace with hash -979356853, now seen corresponding path program 1 times [2021-11-07 13:55:45,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:45,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037223615] [2021-11-07 13:55:45,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:45,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:45,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:45,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037223615] [2021-11-07 13:55:45,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037223615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:45,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:45,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:55:45,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385351714] [2021-11-07 13:55:45,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:45,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:45,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:45,245 INFO L87 Difference]: Start difference. First operand 38318 states and 53982 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:45,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:45,840 INFO L93 Difference]: Finished difference Result 38318 states and 53982 transitions. [2021-11-07 13:55:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:55:45,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-07 13:55:45,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:45,917 INFO L225 Difference]: With dead ends: 38318 [2021-11-07 13:55:45,917 INFO L226 Difference]: Without dead ends: 33281 [2021-11-07 13:55:45,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:45,947 INFO L933 BasicCegarLoop]: 14265 mSDtfsCounter, 14216 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14216 SdHoareTripleChecker+Valid, 14265 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:45,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14216 Valid, 14265 Invalid, 0 Unknown, 0 Unchecked, 15.71ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 13:55:45,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33281 states. [2021-11-07 13:55:46,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33281 to 33281. [2021-11-07 13:55:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33281 states, 33038 states have (on average 1.3951813063744778) internal successors, (46094), 33060 states have internal predecessors, (46094), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-07 13:55:46,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33281 states to 33281 states and 46710 transitions. [2021-11-07 13:55:46,666 INFO L78 Accepts]: Start accepts. Automaton has 33281 states and 46710 transitions. Word has length 51 [2021-11-07 13:55:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:46,666 INFO L470 AbstractCegarLoop]: Abstraction has 33281 states and 46710 transitions. [2021-11-07 13:55:46,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 33281 states and 46710 transitions. [2021-11-07 13:55:46,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 13:55:46,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:46,684 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:46,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 13:55:46,684 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:46,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:46,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2132834545, now seen corresponding path program 1 times [2021-11-07 13:55:46,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:46,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079247632] [2021-11-07 13:55:46,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:46,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:55:46,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:46,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079247632] [2021-11-07 13:55:46,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079247632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:46,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:46,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:55:46,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226581516] [2021-11-07 13:55:46,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:46,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:46,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:46,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:46,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:46,779 INFO L87 Difference]: Start difference. First operand 33281 states and 46710 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:48,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:48,047 INFO L93 Difference]: Finished difference Result 79934 states and 112565 transitions. [2021-11-07 13:55:48,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:55:48,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-07 13:55:48,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:48,162 INFO L225 Difference]: With dead ends: 79934 [2021-11-07 13:55:48,162 INFO L226 Difference]: Without dead ends: 46681 [2021-11-07 13:55:48,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:48,213 INFO L933 BasicCegarLoop]: 14792 mSDtfsCounter, 12639 mSDsluCounter, 6566 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12639 SdHoareTripleChecker+Valid, 21358 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.39ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.57ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:48,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12639 Valid, 21358 Invalid, 24 Unknown, 0 Unchecked, 23.39ms Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 86.57ms Time] [2021-11-07 13:55:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46681 states. [2021-11-07 13:55:49,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46681 to 46663. [2021-11-07 13:55:49,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46663 states, 46180 states have (on average 1.3995669120831529) internal successors, (64632), 46222 states have internal predecessors, (64632), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (912), 296 states have call predecessors, (912), 320 states have call successors, (912) [2021-11-07 13:55:49,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46663 states to 46663 states and 65864 transitions. [2021-11-07 13:55:49,333 INFO L78 Accepts]: Start accepts. Automaton has 46663 states and 65864 transitions. Word has length 79 [2021-11-07 13:55:49,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:49,334 INFO L470 AbstractCegarLoop]: Abstraction has 46663 states and 65864 transitions. [2021-11-07 13:55:49,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:49,334 INFO L276 IsEmpty]: Start isEmpty. Operand 46663 states and 65864 transitions. [2021-11-07 13:55:49,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 13:55:49,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:49,360 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:49,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 13:55:49,360 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:49,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:49,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2068525833, now seen corresponding path program 1 times [2021-11-07 13:55:49,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:49,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465595173] [2021-11-07 13:55:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:49,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 13:55:49,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:49,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465595173] [2021-11-07 13:55:49,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465595173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:49,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:49,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 13:55:49,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366659904] [2021-11-07 13:55:49,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:49,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:55:49,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:49,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:55:49,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:55:49,464 INFO L87 Difference]: Start difference. First operand 46663 states and 65864 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:51,199 INFO L93 Difference]: Finished difference Result 113992 states and 160623 transitions. [2021-11-07 13:55:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 13:55:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 105 [2021-11-07 13:55:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:51,360 INFO L225 Difference]: With dead ends: 113992 [2021-11-07 13:55:51,361 INFO L226 Difference]: Without dead ends: 67357 [2021-11-07 13:55:51,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.53ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:55:51,437 INFO L933 BasicCegarLoop]: 14976 mSDtfsCounter, 31101 mSDsluCounter, 14284 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31101 SdHoareTripleChecker+Valid, 29260 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.75ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.20ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:51,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31101 Valid, 29260 Invalid, 35 Unknown, 0 Unchecked, 43.75ms Time], IncrementalHoareTripleChecker [14 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 75.20ms Time] [2021-11-07 13:55:51,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67357 states. [2021-11-07 13:55:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67357 to 46677. [2021-11-07 13:55:52,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46677 states, 46194 states have (on average 1.3994458154738711) internal successors, (64646), 46236 states have internal predecessors, (64646), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (912), 296 states have call predecessors, (912), 320 states have call successors, (912) [2021-11-07 13:55:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46677 states to 46677 states and 65878 transitions. [2021-11-07 13:55:52,747 INFO L78 Accepts]: Start accepts. Automaton has 46677 states and 65878 transitions. Word has length 105 [2021-11-07 13:55:52,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:52,747 INFO L470 AbstractCegarLoop]: Abstraction has 46677 states and 65878 transitions. [2021-11-07 13:55:52,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:52,748 INFO L276 IsEmpty]: Start isEmpty. Operand 46677 states and 65878 transitions. [2021-11-07 13:55:52,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-07 13:55:52,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:52,770 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:52,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 13:55:52,771 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:52,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:52,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1959600286, now seen corresponding path program 1 times [2021-11-07 13:55:52,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:52,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340467821] [2021-11-07 13:55:52,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:52,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:52,890 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 13:55:52,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:52,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340467821] [2021-11-07 13:55:52,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340467821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:52,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:52,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:55:52,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347397004] [2021-11-07 13:55:52,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:52,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:52,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:52,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:52,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:52,893 INFO L87 Difference]: Start difference. First operand 46677 states and 65878 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:54,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:55:56,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:55:56,614 INFO L93 Difference]: Finished difference Result 107278 states and 152108 transitions. [2021-11-07 13:55:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:55:56,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 109 [2021-11-07 13:55:56,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:55:56,782 INFO L225 Difference]: With dead ends: 107278 [2021-11-07 13:55:56,782 INFO L226 Difference]: Without dead ends: 60629 [2021-11-07 13:55:56,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:56,873 INFO L933 BasicCegarLoop]: 16497 mSDtfsCounter, 10333 mSDsluCounter, 6603 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2036.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10333 SdHoareTripleChecker+Valid, 23100 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.74ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2182.83ms IncrementalHoareTripleChecker+Time [2021-11-07 13:55:56,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10333 Valid, 23100 Invalid, 15 Unknown, 0 Unchecked, 19.74ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2182.83ms Time] [2021-11-07 13:55:56,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60629 states. [2021-11-07 13:55:58,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60629 to 60629. [2021-11-07 13:55:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60629 states, 59666 states have (on average 1.4041497670365033) internal successors, (83780), 59748 states have internal predecessors, (83780), 640 states have call successors, (640), 320 states have call predecessors, (640), 320 states have return successors, (1824), 592 states have call predecessors, (1824), 640 states have call successors, (1824) [2021-11-07 13:55:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60629 states to 60629 states and 86244 transitions. [2021-11-07 13:55:58,494 INFO L78 Accepts]: Start accepts. Automaton has 60629 states and 86244 transitions. Word has length 109 [2021-11-07 13:55:58,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:55:58,495 INFO L470 AbstractCegarLoop]: Abstraction has 60629 states and 86244 transitions. [2021-11-07 13:55:58,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:55:58,495 INFO L276 IsEmpty]: Start isEmpty. Operand 60629 states and 86244 transitions. [2021-11-07 13:55:58,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 13:55:58,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:55:58,552 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:55:58,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 13:55:58,553 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:55:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:55:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash 198181199, now seen corresponding path program 1 times [2021-11-07 13:55:58,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:55:58,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057516719] [2021-11-07 13:55:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:55:58,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:55:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:55:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 13:55:58,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:55:58,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057516719] [2021-11-07 13:55:58,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057516719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:55:58,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:55:58,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:55:58,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033201736] [2021-11-07 13:55:58,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:55:58,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:55:58,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:55:58,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:55:58,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:55:58,652 INFO L87 Difference]: Start difference. First operand 60629 states and 86244 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:56:00,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:02,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:56:02,241 INFO L93 Difference]: Finished difference Result 101727 states and 144146 transitions. [2021-11-07 13:56:02,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:56:02,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 124 [2021-11-07 13:56:02,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:56:02,339 INFO L225 Difference]: With dead ends: 101727 [2021-11-07 13:56:02,340 INFO L226 Difference]: Without dead ends: 41124 [2021-11-07 13:56:02,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:56:02,445 INFO L933 BasicCegarLoop]: 13974 mSDtfsCounter, 3 mSDsluCounter, 13969 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2027.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27943 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2159.75ms IncrementalHoareTripleChecker+Time [2021-11-07 13:56:02,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 27943 Invalid, 5 Unknown, 0 Unchecked, 16.92ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2159.75ms Time] [2021-11-07 13:56:02,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41124 states. [2021-11-07 13:56:03,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41124 to 41118. [2021-11-07 13:56:03,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41118 states, 40515 states have (on average 1.3934838948537578) internal successors, (56457), 40567 states have internal predecessors, (56457), 400 states have call successors, (400), 200 states have call predecessors, (400), 200 states have return successors, (1064), 370 states have call predecessors, (1064), 400 states have call successors, (1064) [2021-11-07 13:56:03,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41118 states to 41118 states and 57921 transitions. [2021-11-07 13:56:03,485 INFO L78 Accepts]: Start accepts. Automaton has 41118 states and 57921 transitions. Word has length 124 [2021-11-07 13:56:03,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:56:03,485 INFO L470 AbstractCegarLoop]: Abstraction has 41118 states and 57921 transitions. [2021-11-07 13:56:03,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:56:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 41118 states and 57921 transitions. [2021-11-07 13:56:03,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-07 13:56:03,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:56:03,524 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:56:03,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 13:56:03,525 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:56:03,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:56:03,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1019380039, now seen corresponding path program 1 times [2021-11-07 13:56:03,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:56:03,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144926310] [2021-11-07 13:56:03,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:56:03,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:56:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-07 13:56:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:03,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-07 13:56:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:03,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-07 13:56:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:03,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-07 13:56:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:56:03,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:56:03,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144926310] [2021-11-07 13:56:03,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144926310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:56:03,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:56:03,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 13:56:03,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349838550] [2021-11-07 13:56:03,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:56:03,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 13:56:03,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:56:03,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 13:56:03,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 13:56:03,775 INFO L87 Difference]: Start difference. First operand 41118 states and 57921 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 13:56:05,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:07,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:36,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:56:36,103 INFO L93 Difference]: Finished difference Result 82804 states and 116533 transitions. [2021-11-07 13:56:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 13:56:36,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2021-11-07 13:56:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:56:36,215 INFO L225 Difference]: With dead ends: 82804 [2021-11-07 13:56:36,215 INFO L226 Difference]: Without dead ends: 41714 [2021-11-07 13:56:36,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 86.27ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:56:36,314 INFO L933 BasicCegarLoop]: 13808 mSDtfsCounter, 26257 mSDsluCounter, 7660 mSDsCounter, 0 mSdLazyCounter, 8142 mSolverCounterSat, 159 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25220.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26271 SdHoareTripleChecker+Valid, 21468 SdHoareTripleChecker+Invalid, 8303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 110.54ms SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 8142 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30583.74ms IncrementalHoareTripleChecker+Time [2021-11-07 13:56:36,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26271 Valid, 21468 Invalid, 8303 Unknown, 0 Unchecked, 110.54ms Time], IncrementalHoareTripleChecker [159 Valid, 8142 Invalid, 2 Unknown, 0 Unchecked, 30583.74ms Time] [2021-11-07 13:56:36,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41714 states. [2021-11-07 13:56:37,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41714 to 41376. [2021-11-07 13:56:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41376 states, 40689 states have (on average 1.3918012239180122) internal successors, (56631), 40778 states have internal predecessors, (56631), 390 states have call successors, (390), 200 states have call predecessors, (390), 294 states have return successors, (1187), 427 states have call predecessors, (1187), 390 states have call successors, (1187) [2021-11-07 13:56:37,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41376 states to 41376 states and 58208 transitions. [2021-11-07 13:56:37,615 INFO L78 Accepts]: Start accepts. Automaton has 41376 states and 58208 transitions. Word has length 131 [2021-11-07 13:56:37,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:56:37,616 INFO L470 AbstractCegarLoop]: Abstraction has 41376 states and 58208 transitions. [2021-11-07 13:56:37,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 13:56:37,616 INFO L276 IsEmpty]: Start isEmpty. Operand 41376 states and 58208 transitions. [2021-11-07 13:56:37,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-07 13:56:37,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:56:37,665 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:56:37,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 13:56:37,666 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:56:37,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:56:37,666 INFO L85 PathProgramCache]: Analyzing trace with hash 797825614, now seen corresponding path program 1 times [2021-11-07 13:56:37,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:56:37,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005414173] [2021-11-07 13:56:37,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:56:37,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:56:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-07 13:56:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:37,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-07 13:56:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:37,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-07 13:56:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-07 13:56:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:56:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:56:37,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:56:37,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005414173] [2021-11-07 13:56:37,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005414173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:56:37,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:56:37,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 13:56:37,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608794990] [2021-11-07 13:56:37,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:56:37,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 13:56:37,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:56:37,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 13:56:37,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 13:56:37,874 INFO L87 Difference]: Start difference. First operand 41376 states and 58208 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 13:56:39,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:56:42,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:15,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:57:15,165 INFO L93 Difference]: Finished difference Result 83042 states and 116762 transitions. [2021-11-07 13:57:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 13:57:15,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 132 [2021-11-07 13:57:15,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:57:15,253 INFO L225 Difference]: With dead ends: 83042 [2021-11-07 13:57:15,254 INFO L226 Difference]: Without dead ends: 41694 [2021-11-07 13:57:15,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 79.69ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:57:15,322 INFO L933 BasicCegarLoop]: 13805 mSDtfsCounter, 14249 mSDsluCounter, 9106 mSDsCounter, 0 mSdLazyCounter, 8381 mSolverCounterSat, 147 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28441.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14262 SdHoareTripleChecker+Valid, 22911 SdHoareTripleChecker+Invalid, 8530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.94ms SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 8381 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35285.90ms IncrementalHoareTripleChecker+Time [2021-11-07 13:57:15,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14262 Valid, 22911 Invalid, 8530 Unknown, 0 Unchecked, 101.94ms Time], IncrementalHoareTripleChecker [147 Valid, 8381 Invalid, 2 Unknown, 0 Unchecked, 35285.90ms Time] [2021-11-07 13:57:15,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41694 states. [2021-11-07 13:57:16,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41694 to 41356. [2021-11-07 13:57:16,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41356 states, 40679 states have (on average 1.3916517121856486) internal successors, (56611), 40768 states have internal predecessors, (56611), 380 states have call successors, (380), 200 states have call predecessors, (380), 294 states have return successors, (1159), 417 states have call predecessors, (1159), 380 states have call successors, (1159) [2021-11-07 13:57:16,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41356 states to 41356 states and 58150 transitions. [2021-11-07 13:57:16,587 INFO L78 Accepts]: Start accepts. Automaton has 41356 states and 58150 transitions. Word has length 132 [2021-11-07 13:57:16,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:57:16,587 INFO L470 AbstractCegarLoop]: Abstraction has 41356 states and 58150 transitions. [2021-11-07 13:57:16,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 13:57:16,587 INFO L276 IsEmpty]: Start isEmpty. Operand 41356 states and 58150 transitions. [2021-11-07 13:57:16,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-07 13:57:16,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:57:16,624 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:57:16,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 13:57:16,624 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:57:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:57:16,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1209558456, now seen corresponding path program 1 times [2021-11-07 13:57:16,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:57:16,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388512719] [2021-11-07 13:57:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:57:16,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:57:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:57:16,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-07 13:57:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:57:16,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-07 13:57:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:57:16,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-07 13:57:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:57:16,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-07 13:57:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:57:16,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:57:16,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:57:16,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388512719] [2021-11-07 13:57:16,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388512719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:57:16,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:57:16,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 13:57:16,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092605035] [2021-11-07 13:57:16,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:57:16,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 13:57:16,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:57:16,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 13:57:16,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 13:57:16,840 INFO L87 Difference]: Start difference. First operand 41356 states and 58150 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 13:57:18,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:57:20,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:01,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:58:01,215 INFO L93 Difference]: Finished difference Result 83002 states and 116646 transitions. [2021-11-07 13:58:01,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 13:58:01,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 133 [2021-11-07 13:58:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:58:01,310 INFO L225 Difference]: With dead ends: 83002 [2021-11-07 13:58:01,311 INFO L226 Difference]: Without dead ends: 41674 [2021-11-07 13:58:01,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 83.85ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:58:01,395 INFO L933 BasicCegarLoop]: 13802 mSDtfsCounter, 26249 mSDsluCounter, 7656 mSDsCounter, 0 mSdLazyCounter, 8137 mSolverCounterSat, 153 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32233.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26261 SdHoareTripleChecker+Valid, 21458 SdHoareTripleChecker+Invalid, 8291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 124.16ms SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 8137 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42293.97ms IncrementalHoareTripleChecker+Time [2021-11-07 13:58:01,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26261 Valid, 21458 Invalid, 8291 Unknown, 0 Unchecked, 124.16ms Time], IncrementalHoareTripleChecker [153 Valid, 8137 Invalid, 1 Unknown, 0 Unchecked, 42293.97ms Time] [2021-11-07 13:58:01,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41674 states. [2021-11-07 13:58:02,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41674 to 41336. [2021-11-07 13:58:02,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41336 states, 40669 states have (on average 1.3915021269271435) internal successors, (56591), 40758 states have internal predecessors, (56591), 370 states have call successors, (370), 200 states have call predecessors, (370), 294 states have return successors, (1131), 407 states have call predecessors, (1131), 370 states have call successors, (1131) [2021-11-07 13:58:02,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41336 states to 41336 states and 58092 transitions. [2021-11-07 13:58:02,871 INFO L78 Accepts]: Start accepts. Automaton has 41336 states and 58092 transitions. Word has length 133 [2021-11-07 13:58:02,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:58:02,871 INFO L470 AbstractCegarLoop]: Abstraction has 41336 states and 58092 transitions. [2021-11-07 13:58:02,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 13:58:02,871 INFO L276 IsEmpty]: Start isEmpty. Operand 41336 states and 58092 transitions. [2021-11-07 13:58:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 13:58:02,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:58:02,906 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:58:02,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 13:58:02,906 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 13:58:02,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:58:02,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1551880623, now seen corresponding path program 1 times [2021-11-07 13:58:02,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:58:02,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864173078] [2021-11-07 13:58:02,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:58:02,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:58:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:58:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-07 13:58:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:58:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-07 13:58:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:58:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-07 13:58:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:58:03,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-07 13:58:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:58:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:58:03,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:58:03,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864173078] [2021-11-07 13:58:03,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864173078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:58:03,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:58:03,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 13:58:03,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153335771] [2021-11-07 13:58:03,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:58:03,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 13:58:03,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:58:03,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 13:58:03,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 13:58:03,155 INFO L87 Difference]: Start difference. First operand 41336 states and 58092 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 13:58:05,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:58:07,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []