./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-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 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 05:38:01,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 05:38:01,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 05:38:01,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 05:38:01,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 05:38:01,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 05:38:01,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 05:38:01,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 05:38:01,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 05:38:01,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 05:38:01,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 05:38:01,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 05:38:01,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 05:38:01,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 05:38:01,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 05:38:01,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 05:38:01,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 05:38:01,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 05:38:01,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 05:38:01,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 05:38:01,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 05:38:01,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 05:38:01,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 05:38:01,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 05:38:01,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 05:38:01,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 05:38:01,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 05:38:01,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 05:38:01,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 05:38:01,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 05:38:01,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 05:38:01,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 05:38:01,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 05:38:01,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 05:38:01,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 05:38:01,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 05:38:01,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 05:38:01,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 05:38:01,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 05:38:01,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 05:38:01,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 05:38:01,171 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 05:38:01,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 05:38:01,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 05:38:01,185 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 05:38:01,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 05:38:01,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 05:38:01,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 05:38:01,187 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 05:38:01,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 05:38:01,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 05:38:01,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 05:38:01,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 05:38:01,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 05:38:01,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 05:38:01,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 05:38:01,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 05:38:01,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 05:38:01,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 05:38:01,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 05:38:01,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 05:38:01,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:38:01,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 05:38:01,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 05:38:01,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 05:38:01,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 05:38:01,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 05:38:01,190 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 05:38:01,190 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 05:38:01,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 05:38:01,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 05:38:01,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 [2021-11-04 05:38:01,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 05:38:01,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 05:38:01,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 05:38:01,467 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 05:38:01,468 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 05:38:01,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:38:01,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2408655a0/de2024119987403181f991de110cfb08/FLAG3a843b7fe [2021-11-04 05:38:02,131 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 05:38:02,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:38:02,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2408655a0/de2024119987403181f991de110cfb08/FLAG3a843b7fe [2021-11-04 05:38:02,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2408655a0/de2024119987403181f991de110cfb08 [2021-11-04 05:38:02,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 05:38:02,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 05:38:02,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 05:38:02,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 05:38:02,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 05:38:02,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:38:02" (1/1) ... [2021-11-04 05:38:02,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f47fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:02, skipping insertion in model container [2021-11-04 05:38:02,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:38:02" (1/1) ... [2021-11-04 05:38:02,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 05:38:02,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 05:38:03,896 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-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-11-04 05:38:03,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:38:03,953 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 05:38:04,253 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-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-11-04 05:38:04,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:38:04,350 INFO L208 MainTranslator]: Completed translation [2021-11-04 05:38:04,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04 WrapperNode [2021-11-04 05:38:04,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 05:38:04,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 05:38:04,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 05:38:04,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 05:38:04,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:04,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:05,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 05:38:05,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 05:38:05,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 05:38:05,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 05:38:05,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:05,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:06,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:06,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:07,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:07,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:07,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:07,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 05:38:07,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 05:38:07,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 05:38:07,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 05:38:07,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (1/1) ... [2021-11-04 05:38:07,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:38:07,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:38:07,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 05:38:07,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 05:38:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 05:38:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 05:38:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-04 05:38:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-04 05:38:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-04 05:38:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-04 05:38:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-04 05:38:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-04 05:38:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-04 05:38:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-04 05:38:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-04 05:38:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-04 05:38:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2021-11-04 05:38:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2021-11-04 05:38:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 05:38:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2021-11-04 05:38:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2021-11-04 05:38:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 05:38:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-11-04 05:38:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-11-04 05:38:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-04 05:38:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-04 05:38:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2021-11-04 05:38:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2021-11-04 05:38:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 05:38:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 05:38:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-04 05:38:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-04 05:38:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-04 05:38:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-04 05:38:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 05:38:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-04 05:38:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-04 05:38:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 05:38:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-04 05:38:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-04 05:38:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 05:38:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-04 05:38:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-04 05:38:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 05:38:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2021-11-04 05:38:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2021-11-04 05:38:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 05:38:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 05:38:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 05:38:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 05:38:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-04 05:38:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-04 05:38:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-04 05:38:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-04 05:38:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-04 05:38:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-04 05:38:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 05:38:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-04 05:38:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 05:38:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 05:38:12,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 05:38:12,985 INFO L299 CfgBuilder]: Removed 12856 assume(true) statements. [2021-11-04 05:38:12,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:38:12 BoogieIcfgContainer [2021-11-04 05:38:12,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 05:38:12,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 05:38:12,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 05:38:12,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 05:38:12,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 05:38:02" (1/3) ... [2021-11-04 05:38:12,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11541fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:38:12, skipping insertion in model container [2021-11-04 05:38:13,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:38:04" (2/3) ... [2021-11-04 05:38:13,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11541fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:38:13, skipping insertion in model container [2021-11-04 05:38:13,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:38:12" (3/3) ... [2021-11-04 05:38:13,001 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:38:13,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 05:38:13,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-04 05:38:13,079 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 05:38:13,085 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 05:38:13,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-04 05:38:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 9833 states, 9767 states have (on average 1.4638066960172007) internal successors, (14297), 9777 states have internal predecessors, (14297), 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) [2021-11-04 05:38:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-04 05:38:13,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:38:13,217 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] [2021-11-04 05:38:13,217 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)] === [2021-11-04 05:38:13,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:38:13,221 INFO L85 PathProgramCache]: Analyzing trace with hash -114298510, now seen corresponding path program 1 times [2021-11-04 05:38:13,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:38:13,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298161905] [2021-11-04 05:38:13,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:38:13,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:38:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:38:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:38:13,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:38:13,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298161905] [2021-11-04 05:38:13,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298161905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:38:13,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:38:13,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:38:13,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450320407] [2021-11-04 05:38:13,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:38:13,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 05:38:13,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:38:13,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 05:38:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:38:13,595 INFO L87 Difference]: Start difference. First operand has 9833 states, 9767 states have (on average 1.4638066960172007) internal successors, (14297), 9777 states have internal predecessors, (14297), 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 24.0) 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) [2021-11-04 05:38:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:38:29,510 INFO L93 Difference]: Finished difference Result 19662 states and 28781 transitions. [2021-11-04 05:38:29,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 05:38:29,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) 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 [2021-11-04 05:38:29,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:38:29,612 INFO L225 Difference]: With dead ends: 19662 [2021-11-04 05:38:29,612 INFO L226 Difference]: Without dead ends: 9820 [2021-11-04 05:38:29,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:38:29,652 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12844.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 14265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15321.02ms IncrementalHoareTripleChecker+Time [2021-11-04 05:38:29,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 14265 Unknown, 0 Unchecked, 18.16ms Time], IncrementalHoareTripleChecker [0 Valid, 14265 Invalid, 0 Unknown, 0 Unchecked, 15321.02ms Time] [2021-11-04 05:38:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9820 states. [2021-11-04 05:38:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9820 to 9820. [2021-11-04 05:38:29,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9820 states, 9755 states have (on average 1.46099436186571) internal successors, (14252), 9764 states have internal predecessors, (14252), 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) [2021-11-04 05:38:30,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9820 states to 9820 states and 14332 transitions. [2021-11-04 05:38:30,012 INFO L78 Accepts]: Start accepts. Automaton has 9820 states and 14332 transitions. Word has length 48 [2021-11-04 05:38:30,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:38:30,012 INFO L470 AbstractCegarLoop]: Abstraction has 9820 states and 14332 transitions. [2021-11-04 05:38:30,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) 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) [2021-11-04 05:38:30,013 INFO L276 IsEmpty]: Start isEmpty. Operand 9820 states and 14332 transitions. [2021-11-04 05:38:30,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-04 05:38:30,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:38:30,017 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] [2021-11-04 05:38:30,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 05:38:30,017 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)] === [2021-11-04 05:38:30,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:38:30,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1789979514, now seen corresponding path program 1 times [2021-11-04 05:38:30,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:38:30,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103049602] [2021-11-04 05:38:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:38:30,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:38:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:38:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:38:30,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:38:30,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103049602] [2021-11-04 05:38:30,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103049602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:38:30,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:38:30,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:38:30,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639989110] [2021-11-04 05:38:30,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:38:30,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:38:30,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:38:30,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:38:30,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:38:30,156 INFO L87 Difference]: Start difference. First operand 9820 states and 14332 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2021-11-04 05:39:03,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:03,990 INFO L93 Difference]: Finished difference Result 19622 states and 28647 transitions. [2021-11-04 05:39:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:39:03,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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 [2021-11-04 05:39:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:04,031 INFO L225 Difference]: With dead ends: 19622 [2021-11-04 05:39:04,031 INFO L226 Difference]: Without dead ends: 9822 [2021-11-04 05:39:04,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:04,046 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 14326 mSDsCounter, 0 mSdLazyCounter, 28502 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27184.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 28504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.58ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33263.80ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:04,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 28504 Unknown, 0 Unchecked, 61.58ms Time], IncrementalHoareTripleChecker [2 Valid, 28502 Invalid, 0 Unknown, 0 Unchecked, 33263.80ms Time] [2021-11-04 05:39:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9822 states. [2021-11-04 05:39:04,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9822 to 9822. [2021-11-04 05:39:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9822 states, 9757 states have (on average 1.4608998667623245) internal successors, (14254), 9766 states have internal predecessors, (14254), 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) [2021-11-04 05:39:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9822 states to 9822 states and 14334 transitions. [2021-11-04 05:39:04,236 INFO L78 Accepts]: Start accepts. Automaton has 9822 states and 14334 transitions. Word has length 48 [2021-11-04 05:39:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:04,237 INFO L470 AbstractCegarLoop]: Abstraction has 9822 states and 14334 transitions. [2021-11-04 05:39:04,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2021-11-04 05:39:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 9822 states and 14334 transitions. [2021-11-04 05:39:04,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-04 05:39:04,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:04,240 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] [2021-11-04 05:39:04,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 05:39:04,240 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:39:04,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:04,241 INFO L85 PathProgramCache]: Analyzing trace with hash -783667780, now seen corresponding path program 1 times [2021-11-04 05:39:04,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:04,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853387964] [2021-11-04 05:39:04,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:04,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:39:04,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:04,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853387964] [2021-11-04 05:39:04,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853387964] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 05:39:04,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770424476] [2021-11-04 05:39:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:04,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:39:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:39:04,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 05:39:04,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 05:39:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:05,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 1571 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-04 05:39:05,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 05:39:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:39:05,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 05:39:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:39:05,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770424476] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 05:39:05,478 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-04 05:39:05,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-04 05:39:05,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125104983] [2021-11-04 05:39:05,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-04 05:39:05,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-04 05:39:05,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:05,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-04 05:39:05,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 05:39:05,480 INFO L87 Difference]: Start difference. First operand 9822 states and 14334 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:40:07,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:40:15,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:40:15,502 INFO L93 Difference]: Finished difference Result 19629 states and 28658 transitions. [2021-11-04 05:40:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 05:40:15,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-04 05:40:15,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:40:15,547 INFO L225 Difference]: With dead ends: 19629 [2021-11-04 05:40:15,547 INFO L226 Difference]: Without dead ends: 9828 [2021-11-04 05:40:15,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.71ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 05:40:15,572 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 28652 mSDsCounter, 0 mSdLazyCounter, 42756 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53837.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 42772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 121.09ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 42756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69031.30ms IncrementalHoareTripleChecker+Time [2021-11-04 05:40:15,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 42772 Unknown, 0 Unchecked, 121.09ms Time], IncrementalHoareTripleChecker [16 Valid, 42756 Invalid, 0 Unknown, 0 Unchecked, 69031.30ms Time] [2021-11-04 05:40:15,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9828 states. [2021-11-04 05:40:15,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9828 to 9828. [2021-11-04 05:40:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9828 states, 9763 states have (on average 1.4606166137457748) internal successors, (14260), 9772 states have internal predecessors, (14260), 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) [2021-11-04 05:40:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9828 states to 9828 states and 14340 transitions. [2021-11-04 05:40:15,810 INFO L78 Accepts]: Start accepts. Automaton has 9828 states and 14340 transitions. Word has length 50 [2021-11-04 05:40:15,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:40:15,811 INFO L470 AbstractCegarLoop]: Abstraction has 9828 states and 14340 transitions. [2021-11-04 05:40:15,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:40:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 9828 states and 14340 transitions. [2021-11-04 05:40:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-04 05:40:15,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:40:15,814 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:40:15,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-04 05:40:16,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:40:16,038 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:40:16,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:40:16,038 INFO L85 PathProgramCache]: Analyzing trace with hash -725402374, now seen corresponding path program 2 times [2021-11-04 05:40:16,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:40:16,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431141513] [2021-11-04 05:40:16,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:40:16,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:40:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:40:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:40:16,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:40:16,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431141513] [2021-11-04 05:40:16,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431141513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:40:16,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:40:16,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:40:16,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387930796] [2021-11-04 05:40:16,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:40:16,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:40:16,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:40:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:40:16,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:40:16,279 INFO L87 Difference]: Start difference. First operand 9828 states and 14340 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) [2021-11-04 05:42:04,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:42:04,385 INFO L93 Difference]: Finished difference Result 29410 states and 43095 transitions. [2021-11-04 05:42:04,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:42:04,385 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 56 [2021-11-04 05:42:04,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:42:04,442 INFO L225 Difference]: With dead ends: 29410 [2021-11-04 05:42:04,443 INFO L226 Difference]: Without dead ends: 19618 [2021-11-04 05:42:04,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:42:04,462 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 13662 mSDsluCounter, 13000 mSDsCounter, 0 mSdLazyCounter, 27830 mSolverCounterSat, 1314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76173.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13662 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 29144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 104.27ms SdHoareTripleChecker+Time, 1314 IncrementalHoareTripleChecker+Valid, 27830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106625.60ms IncrementalHoareTripleChecker+Time [2021-11-04 05:42:04,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13662 Valid, 266 Invalid, 29144 Unknown, 0 Unchecked, 104.27ms Time], IncrementalHoareTripleChecker [1314 Valid, 27830 Invalid, 0 Unknown, 0 Unchecked, 106625.60ms Time] [2021-11-04 05:42:04,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19618 states. [2021-11-04 05:42:04,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19618 to 19606. [2021-11-04 05:42:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19606 states, 19481 states have (on average 1.4276474513628663) internal successors, (27812), 19495 states have internal predecessors, (27812), 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) [2021-11-04 05:42:04,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19606 states to 19606 states and 28044 transitions. [2021-11-04 05:42:04,821 INFO L78 Accepts]: Start accepts. Automaton has 19606 states and 28044 transitions. Word has length 56 [2021-11-04 05:42:04,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:42:04,822 INFO L470 AbstractCegarLoop]: Abstraction has 19606 states and 28044 transitions. [2021-11-04 05:42:04,822 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) [2021-11-04 05:42:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 19606 states and 28044 transitions. [2021-11-04 05:42:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-04 05:42:04,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:42:04,826 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:42:04,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 05:42:04,827 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:42:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:42:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1012593574, now seen corresponding path program 1 times [2021-11-04 05:42:04,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:42:04,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138939464] [2021-11-04 05:42:04,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:42:04,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:42:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:42:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:42:04,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:42:04,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138939464] [2021-11-04 05:42:04,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138939464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:42:04,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:42:04,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:42:04,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743674628] [2021-11-04 05:42:04,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:42:04,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:42:04,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:42:04,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:42:04,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:42:04,986 INFO L87 Difference]: Start difference. First operand 19606 states and 28044 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) [2021-11-04 05:44:50,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:44:50,937 INFO L93 Difference]: Finished difference Result 58088 states and 83199 transitions. [2021-11-04 05:44:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:44:50,963 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 57 [2021-11-04 05:44:50,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:44:51,068 INFO L225 Difference]: With dead ends: 58088 [2021-11-04 05:44:51,068 INFO L226 Difference]: Without dead ends: 38518 [2021-11-04 05:44:51,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:44:51,109 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 13336 mSDsluCounter, 13313 mSDsCounter, 0 mSdLazyCounter, 29000 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108795.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13336 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 29655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 114.35ms SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 29000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163972.84ms IncrementalHoareTripleChecker+Time [2021-11-04 05:44:51,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13336 Valid, 240 Invalid, 29655 Unknown, 0 Unchecked, 114.35ms Time], IncrementalHoareTripleChecker [655 Valid, 29000 Invalid, 0 Unknown, 0 Unchecked, 163972.84ms Time] [2021-11-04 05:44:51,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38518 states. [2021-11-04 05:44:51,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38518 to 38507. [2021-11-04 05:44:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38507 states, 38262 states have (on average 1.401050650776227) internal successors, (53607), 38286 states have internal predecessors, (53607), 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) [2021-11-04 05:44:52,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38507 states to 38507 states and 54223 transitions. [2021-11-04 05:44:52,075 INFO L78 Accepts]: Start accepts. Automaton has 38507 states and 54223 transitions. Word has length 57 [2021-11-04 05:44:52,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:44:52,076 INFO L470 AbstractCegarLoop]: Abstraction has 38507 states and 54223 transitions. [2021-11-04 05:44:52,076 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) [2021-11-04 05:44:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 38507 states and 54223 transitions. [2021-11-04 05:44:52,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-04 05:44:52,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:44:52,086 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:44:52,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 05:44:52,087 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:44:52,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:44:52,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1325586172, now seen corresponding path program 1 times [2021-11-04 05:44:52,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:44:52,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026338883] [2021-11-04 05:44:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:44:52,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:44:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:44:52,188 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:44:52,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:44:52,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026338883] [2021-11-04 05:44:52,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026338883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:44:52,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:44:52,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:44:52,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513669755] [2021-11-04 05:44:52,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:44:52,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:44:52,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:44:52,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:44:52,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:44:52,192 INFO L87 Difference]: Start difference. First operand 38507 states and 54223 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:48:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:48:04,339 INFO L93 Difference]: Finished difference Result 38512 states and 54227 transitions. [2021-11-04 05:48:04,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:48:04,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-04 05:48:04,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:48:04,432 INFO L225 Difference]: With dead ends: 38512 [2021-11-04 05:48:04,432 INFO L226 Difference]: Without dead ends: 38510 [2021-11-04 05:48:04,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:48:04,449 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 13333 mSDsluCounter, 13312 mSDsCounter, 0 mSdLazyCounter, 28994 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125930.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13333 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 29322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 98.16ms SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 28994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 190388.34ms IncrementalHoareTripleChecker+Time [2021-11-04 05:48:04,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13333 Valid, 240 Invalid, 29322 Unknown, 0 Unchecked, 98.16ms Time], IncrementalHoareTripleChecker [328 Valid, 28994 Invalid, 0 Unknown, 0 Unchecked, 190388.34ms Time] [2021-11-04 05:48:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38510 states. [2021-11-04 05:48:05,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38510 to 38508. [2021-11-04 05:48:05,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38508 states, 38263 states have (on average 1.4010401693542065) internal successors, (53608), 38287 states have internal predecessors, (53608), 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) [2021-11-04 05:48:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38508 states to 38508 states and 54224 transitions. [2021-11-04 05:48:05,238 INFO L78 Accepts]: Start accepts. Automaton has 38508 states and 54224 transitions. Word has length 58 [2021-11-04 05:48:05,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:48:05,238 INFO L470 AbstractCegarLoop]: Abstraction has 38508 states and 54224 transitions. [2021-11-04 05:48:05,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:48:05,239 INFO L276 IsEmpty]: Start isEmpty. Operand 38508 states and 54224 transitions. [2021-11-04 05:48:05,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-04 05:48:05,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:48:05,242 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:48:05,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 05:48:05,242 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:48:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:48:05,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1856545188, now seen corresponding path program 1 times [2021-11-04 05:48:05,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:48:05,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940131169] [2021-11-04 05:48:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:48:05,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:48:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:48:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:48:05,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:48:05,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940131169] [2021-11-04 05:48:05,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940131169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:48:05,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:48:05,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:48:05,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955336754] [2021-11-04 05:48:05,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:48:05,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:48:05,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:48:05,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:48:05,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:48:05,347 INFO L87 Difference]: Start difference. First operand 38508 states and 54224 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:49:56,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:49:56,426 INFO L93 Difference]: Finished difference Result 38508 states and 54224 transitions. [2021-11-04 05:49:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:49:56,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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 59 [2021-11-04 05:49:56,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:49:56,506 INFO L225 Difference]: With dead ends: 38508 [2021-11-04 05:49:56,506 INFO L226 Difference]: Without dead ends: 38506 [2021-11-04 05:49:56,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:49:56,526 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 14279 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71291.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14279 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 14250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109891.18ms IncrementalHoareTripleChecker+Time [2021-11-04 05:49:56,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14279 Valid, 80 Invalid, 14250 Unknown, 0 Unchecked, 43.72ms Time], IncrementalHoareTripleChecker [0 Valid, 14250 Invalid, 0 Unknown, 0 Unchecked, 109891.18ms Time] [2021-11-04 05:49:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38506 states. [2021-11-04 05:49:57,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38506 to 38506. [2021-11-04 05:49:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38506 states, 38262 states have (on average 1.4010245151847787) internal successors, (53606), 38285 states have internal predecessors, (53606), 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) [2021-11-04 05:49:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38506 states to 38506 states and 54222 transitions. [2021-11-04 05:49:57,514 INFO L78 Accepts]: Start accepts. Automaton has 38506 states and 54222 transitions. Word has length 59 [2021-11-04 05:49:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:49:57,515 INFO L470 AbstractCegarLoop]: Abstraction has 38506 states and 54222 transitions. [2021-11-04 05:49:57,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:49:57,516 INFO L276 IsEmpty]: Start isEmpty. Operand 38506 states and 54222 transitions. [2021-11-04 05:49:57,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-04 05:49:57,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:49:57,520 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:49:57,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 05:49:57,521 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:49:57,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:49:57,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1718369550, now seen corresponding path program 1 times [2021-11-04 05:49:57,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:49:57,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178133261] [2021-11-04 05:49:57,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:49:57,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:49:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:49:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:49:57,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:49:57,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178133261] [2021-11-04 05:49:57,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178133261] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:49:57,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:49:57,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:49:57,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976942772] [2021-11-04 05:49:57,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:49:57,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:49:57,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:49:57,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:49:57,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:49:57,638 INFO L87 Difference]: Start difference. First operand 38506 states and 54222 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:52:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:52:08,626 INFO L93 Difference]: Finished difference Result 38506 states and 54222 transitions. [2021-11-04 05:52:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:52:08,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-04 05:52:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:52:08,704 INFO L225 Difference]: With dead ends: 38506 [2021-11-04 05:52:08,704 INFO L226 Difference]: Without dead ends: 33469 [2021-11-04 05:52:08,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:52:08,727 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 14276 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83563.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14276 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 14248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129673.55ms IncrementalHoareTripleChecker+Time [2021-11-04 05:52:08,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14276 Valid, 80 Invalid, 14248 Unknown, 0 Unchecked, 50.30ms Time], IncrementalHoareTripleChecker [0 Valid, 14248 Invalid, 0 Unknown, 0 Unchecked, 129673.55ms Time] [2021-11-04 05:52:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33469 states. [2021-11-04 05:52:09,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33469 to 33469. [2021-11-04 05:52:09,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33469 states, 33226 states have (on average 1.3945103232408356) internal successors, (46334), 33248 states have internal predecessors, (46334), 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) [2021-11-04 05:52:09,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33469 states to 33469 states and 46950 transitions. [2021-11-04 05:52:09,507 INFO L78 Accepts]: Start accepts. Automaton has 33469 states and 46950 transitions. Word has length 60 [2021-11-04 05:52:09,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:52:09,508 INFO L470 AbstractCegarLoop]: Abstraction has 33469 states and 46950 transitions. [2021-11-04 05:52:09,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:52:09,508 INFO L276 IsEmpty]: Start isEmpty. Operand 33469 states and 46950 transitions. [2021-11-04 05:52:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-04 05:52:09,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:52:09,526 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-04 05:52:09,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 05:52:09,527 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:52:09,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:52:09,527 INFO L85 PathProgramCache]: Analyzing trace with hash -739989823, now seen corresponding path program 1 times [2021-11-04 05:52:09,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:52:09,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116315238] [2021-11-04 05:52:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:52:09,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:52:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:52:09,633 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:52:09,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:52:09,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116315238] [2021-11-04 05:52:09,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116315238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:52:09,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:52:09,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:52:09,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462115904] [2021-11-04 05:52:09,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:52:09,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:52:09,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:52:09,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:52:09,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:52:09,636 INFO L87 Difference]: Start difference. First operand 33469 states and 46950 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) Killed by 15