./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-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_1a-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 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 05:37:45,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 05:37:45,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 05:37:45,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 05:37:45,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 05:37:45,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 05:37:45,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 05:37:45,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 05:37:45,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 05:37:45,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 05:37:45,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 05:37:45,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 05:37:45,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 05:37:45,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 05:37:45,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 05:37:45,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 05:37:45,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 05:37:45,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 05:37:45,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 05:37:45,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 05:37:45,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 05:37:45,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 05:37:45,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 05:37:45,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 05:37:45,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 05:37:45,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 05:37:45,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 05:37:45,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 05:37:45,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 05:37:45,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 05:37:45,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 05:37:45,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 05:37:45,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 05:37:45,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 05:37:45,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 05:37:45,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 05:37:45,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 05:37:45,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 05:37:45,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 05:37:45,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 05:37:45,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 05:37:45,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 05:37:45,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 05:37:45,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 05:37:45,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 05:37:45,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 05:37:45,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 05:37:45,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 05:37:45,318 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 05:37:45,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 05:37:45,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 05:37:45,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 05:37:45,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 05:37:45,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 05:37:45,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 05:37:45,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 05:37:45,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 05:37:45,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 05:37:45,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 05:37:45,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 05:37:45,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 05:37:45,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:37:45,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 05:37:45,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 05:37:45,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 05:37:45,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 05:37:45,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 05:37:45,321 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 05:37:45,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 05:37:45,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 05:37:45,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 05:37:45,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 [2021-11-04 05:37:45,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 05:37:45,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 05:37:45,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 05:37:45,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 05:37:45,572 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 05:37:45,573 INFO L432 ainManager$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_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:37:45,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b380f23b/6254661d32fa46b596382a444c39d2c5/FLAG458aed6b2 [2021-11-04 05:37:46,217 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 05:37:46,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:37:46,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b380f23b/6254661d32fa46b596382a444c39d2c5/FLAG458aed6b2 [2021-11-04 05:37:46,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b380f23b/6254661d32fa46b596382a444c39d2c5 [2021-11-04 05:37:46,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 05:37:46,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 05:37:46,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 05:37:46,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 05:37:46,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 05:37:46,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:37:46" (1/1) ... [2021-11-04 05:37:46,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b91863c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:46, skipping insertion in model container [2021-11-04 05:37:46,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:37:46" (1/1) ... [2021-11-04 05:37:46,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 05:37:46,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 05:37:48,018 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_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2021-11-04 05:37:48,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:37:48,076 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 05:37:48,314 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_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2021-11-04 05:37:48,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:37:48,399 INFO L208 MainTranslator]: Completed translation [2021-11-04 05:37:48,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48 WrapperNode [2021-11-04 05:37:48,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 05:37:48,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 05:37:48,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 05:37:48,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 05:37:48,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:48,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:50,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 05:37:50,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 05:37:50,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 05:37:50,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 05:37:50,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:50,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:50,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:50,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:51,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:51,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:51,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:52,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 05:37:52,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 05:37:52,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 05:37:52,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 05:37:52,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (1/1) ... [2021-11-04 05:37:52,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:37:52,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:37:52,086 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 05:37:52,108 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 05:37:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 05:37:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 05:37:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-04 05:37:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-04 05:37:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-04 05:37:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-04 05:37:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-04 05:37:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-04 05:37:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-04 05:37:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-04 05:37:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-04 05:37:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-04 05:37:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2021-11-04 05:37:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2021-11-04 05:37:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 05:37:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2021-11-04 05:37:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2021-11-04 05:37:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 05:37:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-11-04 05:37:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-11-04 05:37:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-04 05:37:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-04 05:37:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2021-11-04 05:37:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2021-11-04 05:37:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 05:37:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 05:37:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-04 05:37:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-04 05:37:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-04 05:37:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-04 05:37:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 05:37:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-04 05:37:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-04 05:37:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 05:37:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-04 05:37:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-04 05:37:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 05:37:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-04 05:37:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-04 05:37:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 05:37:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2021-11-04 05:37:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2021-11-04 05:37:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 05:37:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 05:37:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 05:37:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 05:37:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-04 05:37:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-04 05:37:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-04 05:37:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-04 05:37:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-04 05:37:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-04 05:37:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 05:37:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-04 05:37:52,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 05:37:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 05:37:57,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 05:37:57,533 INFO L299 CfgBuilder]: Removed 14858 assume(true) statements. [2021-11-04 05:37:57,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:37:57 BoogieIcfgContainer [2021-11-04 05:37:57,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 05:37:57,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 05:37:57,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 05:37:57,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 05:37:57,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 05:37:46" (1/3) ... [2021-11-04 05:37:57,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a45a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:37:57, skipping insertion in model container [2021-11-04 05:37:57,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:37:48" (2/3) ... [2021-11-04 05:37:57,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a45a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:37:57, skipping insertion in model container [2021-11-04 05:37:57,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:37:57" (3/3) ... [2021-11-04 05:37:57,552 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:37:57,556 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 05:37:57,557 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-04 05:37:57,635 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 05:37:57,641 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 05:37:57,641 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-04 05:37:57,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 11174 states, 11109 states have (on average 1.4384733099288864) internal successors, (15980), 11120 states have internal predecessors, (15980), 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 05:37:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-04 05:37:57,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:37:57,762 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 05:37:57,763 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:37:57,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:37:57,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1615285543, now seen corresponding path program 1 times [2021-11-04 05:37:57,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:37:57,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495475644] [2021-11-04 05:37:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:37:57,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:37:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:37:58,173 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 05:37:58,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:37:58,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495475644] [2021-11-04 05:37:58,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495475644] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:37:58,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:37:58,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:37:58,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109042475] [2021-11-04 05:37:58,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:37:58,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 05:37:58,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:37:58,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 05:37:58,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:37:58,259 INFO L87 Difference]: Start difference. First operand has 11174 states, 11109 states have (on average 1.4384733099288864) internal successors, (15980), 11120 states have internal predecessors, (15980), 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 05:38:16,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:38:16,337 INFO L93 Difference]: Finished difference Result 22344 states and 32147 transitions. [2021-11-04 05:38:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 05:38:16,339 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 05:38:16,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:38:16,397 INFO L225 Difference]: With dead ends: 22344 [2021-11-04 05:38:16,397 INFO L226 Difference]: Without dead ends: 11157 [2021-11-04 05:38:16,424 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 05:38:16,427 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15940 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14501.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 15940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17401.46ms IncrementalHoareTripleChecker+Time [2021-11-04 05:38:16,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 15940 Unknown, 0 Unchecked, 21.81ms Time], IncrementalHoareTripleChecker [0 Valid, 15940 Invalid, 0 Unknown, 0 Unchecked, 17401.46ms Time] [2021-11-04 05:38:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11157 states. [2021-11-04 05:38:16,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11157 to 11157. [2021-11-04 05:38:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11157 states, 11093 states have (on average 1.4354097178400793) internal successors, (15923), 11103 states have internal predecessors, (15923), 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 05:38:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11157 states to 11157 states and 16003 transitions. [2021-11-04 05:38:16,715 INFO L78 Accepts]: Start accepts. Automaton has 11157 states and 16003 transitions. Word has length 48 [2021-11-04 05:38:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:38:16,715 INFO L470 AbstractCegarLoop]: Abstraction has 11157 states and 16003 transitions. [2021-11-04 05:38:16,716 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 05:38:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand 11157 states and 16003 transitions. [2021-11-04 05:38:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-04 05:38:16,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:38:16,722 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 05:38:16,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 05:38:16,723 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:38:16,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:38:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash -134654241, now seen corresponding path program 1 times [2021-11-04 05:38:16,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:38:16,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819309350] [2021-11-04 05:38:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:38:16,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:38:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:38:16,944 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 05:38:16,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:38:16,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819309350] [2021-11-04 05:38:16,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819309350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:38:16,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:38:16,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:38:16,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24792614] [2021-11-04 05:38:16,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:38:16,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:38:16,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:38:16,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:38:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:38:16,959 INFO L87 Difference]: Start difference. First operand 11157 states and 16003 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 05:38:48,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:38:48,758 INFO L93 Difference]: Finished difference Result 22296 states and 31989 transitions. [2021-11-04 05:38:48,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:38:48,758 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 05:38:48,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:38:48,797 INFO L225 Difference]: With dead ends: 22296 [2021-11-04 05:38:48,798 INFO L226 Difference]: Without dead ends: 11159 [2021-11-04 05:38:48,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:38:48,825 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 15997 mSDsCounter, 0 mSdLazyCounter, 31844 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26081.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 31846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.82ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31012.34ms IncrementalHoareTripleChecker+Time [2021-11-04 05:38:48,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 31846 Unknown, 0 Unchecked, 72.82ms Time], IncrementalHoareTripleChecker [2 Valid, 31844 Invalid, 0 Unknown, 0 Unchecked, 31012.34ms Time] [2021-11-04 05:38:48,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11159 states. [2021-11-04 05:38:49,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11159 to 11159. [2021-11-04 05:38:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11159 states, 11095 states have (on average 1.4353312302839116) internal successors, (15925), 11105 states have internal predecessors, (15925), 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 05:38:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11159 states to 11159 states and 16005 transitions. [2021-11-04 05:38:49,104 INFO L78 Accepts]: Start accepts. Automaton has 11159 states and 16005 transitions. Word has length 48 [2021-11-04 05:38:49,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:38:49,104 INFO L470 AbstractCegarLoop]: Abstraction has 11159 states and 16005 transitions. [2021-11-04 05:38:49,105 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 05:38:49,105 INFO L276 IsEmpty]: Start isEmpty. Operand 11159 states and 16005 transitions. [2021-11-04 05:38:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-04 05:38:49,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:38:49,108 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 05:38:49,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 05:38:49,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:38:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:38:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1579628511, now seen corresponding path program 1 times [2021-11-04 05:38:49,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:38:49,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856649720] [2021-11-04 05:38:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:38:49,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:38:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:38:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:38:49,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:38:49,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856649720] [2021-11-04 05:38:49,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856649720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:38:49,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:38:49,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:38:49,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555654863] [2021-11-04 05:38:49,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:38:49,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:38:49,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:38:49,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:38:49,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:38:49,277 INFO L87 Difference]: Start difference. First operand 11159 states and 16005 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 05:39:47,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:39:47,174 INFO L93 Difference]: Finished difference Result 33406 states and 48014 transitions. [2021-11-04 05:39:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:39:47,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-04 05:39:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:39:47,262 INFO L225 Difference]: With dead ends: 33406 [2021-11-04 05:39:47,262 INFO L226 Difference]: Without dead ends: 22277 [2021-11-04 05:39:47,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:47,298 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 15288 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 32057 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46233.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15288 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 32720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 98.55ms SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 32057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56427.82ms IncrementalHoareTripleChecker+Time [2021-11-04 05:39:47,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15288 Valid, 237 Invalid, 32720 Unknown, 0 Unchecked, 98.55ms Time], IncrementalHoareTripleChecker [663 Valid, 32057 Invalid, 0 Unknown, 0 Unchecked, 56427.82ms Time] [2021-11-04 05:39:47,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22277 states. [2021-11-04 05:39:47,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22277 to 22277. [2021-11-04 05:39:47,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22277 states, 22153 states have (on average 1.4059495327946554) internal successors, (31146), 22170 states have internal predecessors, (31146), 80 states have call successors, (80), 40 states have call predecessors, (80), 40 states have return successors, (112), 74 states have call predecessors, (112), 80 states have call successors, (112) [2021-11-04 05:39:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22277 states to 22277 states and 31338 transitions. [2021-11-04 05:39:47,845 INFO L78 Accepts]: Start accepts. Automaton has 22277 states and 31338 transitions. Word has length 50 [2021-11-04 05:39:47,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:39:47,845 INFO L470 AbstractCegarLoop]: Abstraction has 22277 states and 31338 transitions. [2021-11-04 05:39:47,846 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 05:39:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 22277 states and 31338 transitions. [2021-11-04 05:39:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-04 05:39:47,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:39:47,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:39:47,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 05:39:47,851 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:39:47,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:39:47,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1723795992, now seen corresponding path program 1 times [2021-11-04 05:39:47,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:39:47,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634881978] [2021-11-04 05:39:47,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:39:47,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:39:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:39:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:39:48,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:39:48,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634881978] [2021-11-04 05:39:48,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634881978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:39:48,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:39:48,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:39:48,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449693822] [2021-11-04 05:39:48,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:39:48,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:39:48,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:39:48,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:39:48,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:39:48,004 INFO L87 Difference]: Start difference. First operand 22277 states and 31338 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 05:41:02,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:41:02,979 INFO L93 Difference]: Finished difference Result 66453 states and 93634 transitions. [2021-11-04 05:41:02,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:41:02,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-04 05:41:02,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:41:03,107 INFO L225 Difference]: With dead ends: 66453 [2021-11-04 05:41:03,107 INFO L226 Difference]: Without dead ends: 44206 [2021-11-04 05:41:03,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:41:03,170 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 15412 mSDsluCounter, 15311 mSDsCounter, 0 mSdLazyCounter, 32452 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56157.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15412 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 32780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 86.76ms SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 32452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73294.55ms IncrementalHoareTripleChecker+Time [2021-11-04 05:41:03,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15412 Valid, 200 Invalid, 32780 Unknown, 0 Unchecked, 86.76ms Time], IncrementalHoareTripleChecker [328 Valid, 32452 Invalid, 0 Unknown, 0 Unchecked, 73294.55ms Time] [2021-11-04 05:41:03,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44206 states. [2021-11-04 05:41:03,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44206 to 44188. [2021-11-04 05:41:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44188 states, 43944 states have (on average 1.3916803204077917) internal successors, (61156), 43975 states have internal predecessors, (61156), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (224), 148 states have call predecessors, (224), 160 states have call successors, (224) [2021-11-04 05:41:03,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44188 states to 44188 states and 61540 transitions. [2021-11-04 05:41:03,998 INFO L78 Accepts]: Start accepts. Automaton has 44188 states and 61540 transitions. Word has length 51 [2021-11-04 05:41:03,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:41:03,999 INFO L470 AbstractCegarLoop]: Abstraction has 44188 states and 61540 transitions. [2021-11-04 05:41:03,999 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 05:41:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 44188 states and 61540 transitions. [2021-11-04 05:41:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-04 05:41:04,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:41:04,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:41:04,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 05:41:04,004 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:41:04,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:41:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1898020597, now seen corresponding path program 1 times [2021-11-04 05:41:04,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:41:04,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370958902] [2021-11-04 05:41:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:41:04,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:41:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:41:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:41:04,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:41:04,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370958902] [2021-11-04 05:41:04,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370958902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:41:04,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:41:04,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:41:04,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044875633] [2021-11-04 05:41:04,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:41:04,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:41:04,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:41:04,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:41:04,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:41:04,116 INFO L87 Difference]: Start difference. First operand 44188 states and 61540 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 05:41:54,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:41:54,257 INFO L93 Difference]: Finished difference Result 44188 states and 61540 transitions. [2021-11-04 05:41:54,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:41:54,258 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 52 [2021-11-04 05:41:54,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:41:54,361 INFO L225 Difference]: With dead ends: 44188 [2021-11-04 05:41:54,362 INFO L226 Difference]: Without dead ends: 44186 [2021-11-04 05:41:54,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:41:54,387 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 15951 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15921 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35516.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15951 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 15921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49032.51ms IncrementalHoareTripleChecker+Time [2021-11-04 05:41:54,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15951 Valid, 80 Invalid, 15921 Unknown, 0 Unchecked, 47.67ms Time], IncrementalHoareTripleChecker [0 Valid, 15921 Invalid, 0 Unknown, 0 Unchecked, 49032.51ms Time] [2021-11-04 05:41:54,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44186 states. [2021-11-04 05:41:55,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44186 to 44186. [2021-11-04 05:41:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44186 states, 43943 states have (on average 1.3916664770270577) internal successors, (61154), 43973 states have internal predecessors, (61154), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (224), 148 states have call predecessors, (224), 160 states have call successors, (224) [2021-11-04 05:41:55,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44186 states to 44186 states and 61538 transitions. [2021-11-04 05:41:55,335 INFO L78 Accepts]: Start accepts. Automaton has 44186 states and 61538 transitions. Word has length 52 [2021-11-04 05:41:55,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:41:55,337 INFO L470 AbstractCegarLoop]: Abstraction has 44186 states and 61538 transitions. [2021-11-04 05:41:55,337 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 05:41:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 44186 states and 61538 transitions. [2021-11-04 05:41:55,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-04 05:41:55,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:41:55,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:41:55,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 05:41:55,342 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:41:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:41:55,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1290951250, now seen corresponding path program 1 times [2021-11-04 05:41:55,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:41:55,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768160329] [2021-11-04 05:41:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:41:55,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:41:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:41:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:41:55,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:41:55,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768160329] [2021-11-04 05:41:55,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768160329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:41:55,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:41:55,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:41:55,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634838517] [2021-11-04 05:41:55,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:41:55,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:41:55,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:41:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:41:55,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:41:55,475 INFO L87 Difference]: Start difference. First operand 44186 states and 61538 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 05:43:00,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:43:00,558 INFO L93 Difference]: Finished difference Result 44186 states and 61538 transitions. [2021-11-04 05:43:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:43:00,558 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 53 [2021-11-04 05:43:00,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:43:00,647 INFO L225 Difference]: With dead ends: 44186 [2021-11-04 05:43:00,648 INFO L226 Difference]: Without dead ends: 38190 [2021-11-04 05:43:00,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:43:00,675 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 15948 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15919 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44465.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15948 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 15919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63590.58ms IncrementalHoareTripleChecker+Time [2021-11-04 05:43:00,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15948 Valid, 80 Invalid, 15919 Unknown, 0 Unchecked, 59.04ms Time], IncrementalHoareTripleChecker [0 Valid, 15919 Invalid, 0 Unknown, 0 Unchecked, 63590.58ms Time] [2021-11-04 05:43:00,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38190 states. [2021-11-04 05:43:01,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38190 to 38190. [2021-11-04 05:43:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38190 states, 37948 states have (on average 1.3996785074312217) internal successors, (53115), 37977 states have internal predecessors, (53115), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (224), 148 states have call predecessors, (224), 160 states have call successors, (224) [2021-11-04 05:43:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38190 states to 38190 states and 53499 transitions. [2021-11-04 05:43:01,492 INFO L78 Accepts]: Start accepts. Automaton has 38190 states and 53499 transitions. Word has length 53 [2021-11-04 05:43:01,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:43:01,493 INFO L470 AbstractCegarLoop]: Abstraction has 38190 states and 53499 transitions. [2021-11-04 05:43:01,493 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 05:43:01,493 INFO L276 IsEmpty]: Start isEmpty. Operand 38190 states and 53499 transitions. [2021-11-04 05:43:01,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-04 05:43:01,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:43:01,510 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 05:43:01,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 05:43:01,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:43:01,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:43:01,511 INFO L85 PathProgramCache]: Analyzing trace with hash -479131215, now seen corresponding path program 1 times [2021-11-04 05:43:01,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:43:01,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924445645] [2021-11-04 05:43:01,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:43:01,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:43:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:43:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:43:01,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:43:01,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924445645] [2021-11-04 05:43:01,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924445645] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:43:01,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:43:01,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:43:01,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989330278] [2021-11-04 05:43:01,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:43:01,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:43:01,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:43:01,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:43:01,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:43:01,628 INFO L87 Difference]: Start difference. First operand 38190 states and 53499 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 05:43:54,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:44:46,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:44:46,034 INFO L93 Difference]: Finished difference Result 91893 states and 128736 transitions. [2021-11-04 05:44:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:44:46,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-04 05:44:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:44:46,164 INFO L225 Difference]: With dead ends: 91893 [2021-11-04 05:44:46,164 INFO L226 Difference]: Without dead ends: 53733 [2021-11-04 05:44:46,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:44:46,227 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 14209 mSDsluCounter, 7340 mSDsCounter, 0 mSdLazyCounter, 23494 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71430.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14209 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 23497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 97.93ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102279.65ms IncrementalHoareTripleChecker+Time [2021-11-04 05:44:46,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14209 Valid, 200 Invalid, 23497 Unknown, 0 Unchecked, 97.93ms Time], IncrementalHoareTripleChecker [3 Valid, 23494 Invalid, 0 Unknown, 0 Unchecked, 102279.65ms Time] [2021-11-04 05:44:46,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53733 states. [2021-11-04 05:44:47,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53733 to 53718. [2021-11-04 05:44:47,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53718 states, 53236 states have (on average 1.3991096250657449) internal successors, (74483), 53293 states have internal predecessors, (74483), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (448), 296 states have call predecessors, (448), 320 states have call successors, (448) [2021-11-04 05:44:47,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53718 states to 53718 states and 75251 transitions. [2021-11-04 05:44:47,308 INFO L78 Accepts]: Start accepts. Automaton has 53718 states and 75251 transitions. Word has length 78 [2021-11-04 05:44:47,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:44:47,309 INFO L470 AbstractCegarLoop]: Abstraction has 53718 states and 75251 transitions. [2021-11-04 05:44:47,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 05:44:47,309 INFO L276 IsEmpty]: Start isEmpty. Operand 53718 states and 75251 transitions. [2021-11-04 05:44:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-04 05:44:47,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:44:47,337 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:44:47,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 05:44:47,339 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:44:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:44:47,340 INFO L85 PathProgramCache]: Analyzing trace with hash 969127289, now seen corresponding path program 1 times [2021-11-04 05:44:47,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:44:47,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927369671] [2021-11-04 05:44:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:44:47,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:44:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:44:47,445 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-04 05:44:47,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:44:47,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927369671] [2021-11-04 05:44:47,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927369671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:44:47,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:44:47,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 05:44:47,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880341546] [2021-11-04 05:44:47,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:44:47,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:44:47,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:44:47,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:44:47,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 05:44:47,447 INFO L87 Difference]: Start difference. First operand 53718 states and 75251 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 05:47:13,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:47:13,113 INFO L93 Difference]: Finished difference Result 131290 states and 184035 transitions. [2021-11-04 05:47:13,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 05:47:13,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-04 05:47:13,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:47:13,290 INFO L225 Difference]: With dead ends: 131290 [2021-11-04 05:47:13,290 INFO L226 Difference]: Without dead ends: 77602 [2021-11-04 05:47:13,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:47:13,386 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 34885 mSDsluCounter, 16012 mSDsCounter, 0 mSdLazyCounter, 32738 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98812.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34885 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 32752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 202.37ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 142634.48ms IncrementalHoareTripleChecker+Time [2021-11-04 05:47:13,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34885 Valid, 178 Invalid, 32752 Unknown, 0 Unchecked, 202.37ms Time], IncrementalHoareTripleChecker [14 Valid, 32738 Invalid, 0 Unknown, 0 Unchecked, 142634.48ms Time] [2021-11-04 05:47:13,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77602 states. [2021-11-04 05:47:14,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77602 to 53732. [2021-11-04 05:47:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53732 states, 53250 states have (on average 1.3990046948356807) internal successors, (74497), 53307 states have internal predecessors, (74497), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (448), 296 states have call predecessors, (448), 320 states have call successors, (448) [2021-11-04 05:47:14,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53732 states to 53732 states and 75265 transitions. [2021-11-04 05:47:14,862 INFO L78 Accepts]: Start accepts. Automaton has 53732 states and 75265 transitions. Word has length 105 [2021-11-04 05:47:14,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:47:14,863 INFO L470 AbstractCegarLoop]: Abstraction has 53732 states and 75265 transitions. [2021-11-04 05:47:14,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 05:47:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand 53732 states and 75265 transitions. [2021-11-04 05:47:14,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-04 05:47:14,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:47:14,889 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:47:14,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 05:47:14,889 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:47:14,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:47:14,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1769236928, now seen corresponding path program 1 times [2021-11-04 05:47:14,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:47:14,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064443095] [2021-11-04 05:47:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:47:14,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:47:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:47:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 05:47:15,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:47:15,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064443095] [2021-11-04 05:47:15,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064443095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:47:15,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:47:15,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:47:15,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360192442] [2021-11-04 05:47:15,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:47:15,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:47:15,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:47:15,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:47:15,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:47:15,005 INFO L87 Difference]: Start difference. First operand 53732 states and 75265 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 05:48:10,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:49:17,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:49:17,703 INFO L93 Difference]: Finished difference Result 123066 states and 172588 transitions. [2021-11-04 05:49:17,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:49:17,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-11-04 05:49:17,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:49:17,992 INFO L225 Difference]: With dead ends: 123066 [2021-11-04 05:49:17,992 INFO L226 Difference]: Without dead ends: 69364 [2021-11-04 05:49:18,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:49:18,063 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 11595 mSDsluCounter, 7377 mSDsCounter, 0 mSdLazyCounter, 25737 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83997.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11595 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 25739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 80.22ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120108.22ms IncrementalHoareTripleChecker+Time [2021-11-04 05:49:18,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11595 Valid, 240 Invalid, 25739 Unknown, 0 Unchecked, 80.22ms Time], IncrementalHoareTripleChecker [2 Valid, 25737 Invalid, 0 Unknown, 0 Unchecked, 120108.22ms Time] [2021-11-04 05:49:18,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69364 states. [2021-11-04 05:49:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69364 to 69364. [2021-11-04 05:49:19,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69364 states, 68402 states have (on average 1.4005877021139732) internal successors, (95803), 68515 states have internal predecessors, (95803), 640 states have call successors, (640), 320 states have call predecessors, (640), 320 states have return successors, (896), 592 states have call predecessors, (896), 640 states have call successors, (896) [2021-11-04 05:49:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69364 states to 69364 states and 97339 transitions. [2021-11-04 05:49:19,778 INFO L78 Accepts]: Start accepts. Automaton has 69364 states and 97339 transitions. Word has length 109 [2021-11-04 05:49:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:49:19,778 INFO L470 AbstractCegarLoop]: Abstraction has 69364 states and 97339 transitions. [2021-11-04 05:49:19,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 05:49:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 69364 states and 97339 transitions. [2021-11-04 05:49:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-04 05:49:19,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:49:19,830 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:49:19,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 05:49:19,830 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:49:19,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:49:19,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1626060955, now seen corresponding path program 1 times [2021-11-04 05:49:19,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:49:19,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567732534] [2021-11-04 05:49:19,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:49:19,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:49:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:49:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 05:49:19,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:49:19,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567732534] [2021-11-04 05:49:19,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567732534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:49:19,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:49:19,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 05:49:19,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911899357] [2021-11-04 05:49:19,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:49:19,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 05:49:19,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:49:19,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 05:49:19,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:49:19,955 INFO L87 Difference]: Start difference. First operand 69364 states and 97339 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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