./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 4d014703 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-4d01470 [2021-11-02 19:55:52,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 19:55:52,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 19:55:52,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 19:55:52,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 19:55:52,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 19:55:52,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 19:55:52,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 19:55:52,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 19:55:52,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 19:55:52,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 19:55:52,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 19:55:52,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 19:55:52,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 19:55:52,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 19:55:52,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 19:55:52,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 19:55:52,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 19:55:52,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 19:55:52,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 19:55:52,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 19:55:52,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 19:55:52,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 19:55:52,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 19:55:52,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 19:55:52,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 19:55:52,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 19:55:52,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 19:55:52,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 19:55:52,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 19:55:52,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 19:55:52,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 19:55:52,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 19:55:52,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 19:55:52,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 19:55:52,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 19:55:52,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 19:55:52,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 19:55:52,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 19:55:52,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 19:55:52,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 19:55:52,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 19:55:52,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 19:55:52,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 19:55:52,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 19:55:52,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 19:55:52,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 19:55:52,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 19:55:52,123 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 19:55:52,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 19:55:52,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 19:55:52,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 19:55:52,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 19:55:52,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 19:55:52,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 19:55:52,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 19:55:52,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 19:55:52,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 19:55:52,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 19:55:52,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 19:55:52,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 19:55:52,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 19:55:52,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 19:55:52,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 19:55:52,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 19:55:52,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 19:55:52,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 19:55:52,126 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 19:55:52,126 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 19:55:52,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 19:55:52,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 19:55:52,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 [2021-11-02 19:55:52,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 19:55:52,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 19:55:52,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 19:55:52,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 19:55:52,338 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 19:55:52,340 INFO L432 ainManager$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 [2021-11-02 19:55:52,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15baee15b/8952efbd32ac4d89b0fe8506c06778f3/FLAG6e29c4245 [2021-11-02 19:55:53,008 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 19:55:53,008 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 [2021-11-02 19:55:53,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15baee15b/8952efbd32ac4d89b0fe8506c06778f3/FLAG6e29c4245 [2021-11-02 19:55:53,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15baee15b/8952efbd32ac4d89b0fe8506c06778f3 [2021-11-02 19:55:53,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 19:55:53,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 19:55:53,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 19:55:53,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 19:55:53,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 19:55:53,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:55:53" (1/1) ... [2021-11-02 19:55:53,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2876d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:53, skipping insertion in model container [2021-11-02 19:55:53,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:55:53" (1/1) ... [2021-11-02 19:55:53,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 19:55:53,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 19:55:54,573 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] [2021-11-02 19:55:54,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 19:55:54,648 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 19:55:54,851 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] [2021-11-02 19:55:54,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 19:55:54,939 INFO L208 MainTranslator]: Completed translation [2021-11-02 19:55:54,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54 WrapperNode [2021-11-02 19:55:54,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 19:55:54,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 19:55:54,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 19:55:54,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 19:55:54,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:55,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:56,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 19:55:56,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 19:55:56,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 19:55:56,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 19:55:56,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:56,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:56,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:56,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:57,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:57,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:57,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:57,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 19:55:57,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 19:55:57,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 19:55:57,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 19:55:57,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (1/1) ... [2021-11-02 19:55:57,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 19:55:57,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 19:55:57,875 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) [2021-11-02 19:55:57,877 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 [2021-11-02 19:55:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 19:55:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 19:55:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-02 19:55:57,904 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-02 19:55:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-02 19:55:57,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-02 19:55:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-02 19:55:57,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-02 19:55:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-02 19:55:57,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-02 19:55:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-02 19:55:57,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-02 19:55:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2021-11-02 19:55:57,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2021-11-02 19:55:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 19:55:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2021-11-02 19:55:57,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2021-11-02 19:55:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 19:55:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-11-02 19:55:57,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-11-02 19:55:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-02 19:55:57,906 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-02 19:55:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2021-11-02 19:55:57,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2021-11-02 19:55:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 19:55:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 19:55:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-02 19:55:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-02 19:55:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-02 19:55:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-02 19:55:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 19:55:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-02 19:55:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-02 19:55:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 19:55:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-02 19:55:57,908 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-02 19:55:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 19:55:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-02 19:55:57,908 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-02 19:55:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 19:55:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2021-11-02 19:55:57,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2021-11-02 19:55:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 19:55:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 19:55:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 19:55:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 19:55:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-02 19:55:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-02 19:55:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-02 19:55:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-02 19:55:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-02 19:55:57,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-02 19:55:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 19:55:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-02 19:55:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 19:55:57,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 19:56:03,745 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 19:56:03,745 INFO L299 CfgBuilder]: Removed 14858 assume(true) statements. [2021-11-02 19:56:03,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:56:03 BoogieIcfgContainer [2021-11-02 19:56:03,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 19:56:03,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 19:56:03,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 19:56:03,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 19:56:03,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:55:53" (1/3) ... [2021-11-02 19:56:03,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225052a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:56:03, skipping insertion in model container [2021-11-02 19:56:03,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:54" (2/3) ... [2021-11-02 19:56:03,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225052a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:56:03, skipping insertion in model container [2021-11-02 19:56:03,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:56:03" (3/3) ... [2021-11-02 19:56:03,760 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 [2021-11-02 19:56:03,763 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 19:56:03,763 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-02 19:56:03,817 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 19:56:03,821 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 [2021-11-02 19:56:03,821 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-02 19:56:03,945 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) [2021-11-02 19:56:03,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-02 19:56:03,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:56:03,957 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] [2021-11-02 19:56:03,957 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)] === [2021-11-02 19:56:03,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:56:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1615285543, now seen corresponding path program 1 times [2021-11-02 19:56:03,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:56:03,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118647061] [2021-11-02 19:56:03,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:56:03,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:56:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:56:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 19:56:04,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:56:04,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118647061] [2021-11-02 19:56:04,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118647061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:56:04,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:56:04,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 19:56:04,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425931134] [2021-11-02 19:56:04,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 19:56:04,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:56:04,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 19:56:04,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 19:56:04,315 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) [2021-11-02 19:56:19,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:56:19,219 INFO L93 Difference]: Finished difference Result 22344 states and 32147 transitions. [2021-11-02 19:56:19,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 19:56:19,229 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 [2021-11-02 19:56:19,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:56:19,287 INFO L225 Difference]: With dead ends: 22344 [2021-11-02 19:56:19,287 INFO L226 Difference]: Without dead ends: 11157 [2021-11-02 19:56:19,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 19:56:19,318 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15940 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11948.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 15940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14284.92ms IncrementalHoareTripleChecker+Time [2021-11-02 19:56:19,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 15940 Unknown, 0 Unchecked, 17.32ms Time], IncrementalHoareTripleChecker [0 Valid, 15940 Invalid, 0 Unknown, 0 Unchecked, 14284.92ms Time] [2021-11-02 19:56:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11157 states. [2021-11-02 19:56:19,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11157 to 11157. [2021-11-02 19:56:19,556 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) [2021-11-02 19:56:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11157 states to 11157 states and 16003 transitions. [2021-11-02 19:56:19,587 INFO L78 Accepts]: Start accepts. Automaton has 11157 states and 16003 transitions. Word has length 48 [2021-11-02 19:56:19,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:56:19,588 INFO L470 AbstractCegarLoop]: Abstraction has 11157 states and 16003 transitions. [2021-11-02 19:56:19,588 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) [2021-11-02 19:56:19,588 INFO L276 IsEmpty]: Start isEmpty. Operand 11157 states and 16003 transitions. [2021-11-02 19:56:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-02 19:56:19,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:56:19,592 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] [2021-11-02 19:56:19,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 19:56:19,593 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)] === [2021-11-02 19:56:19,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:56:19,593 INFO L85 PathProgramCache]: Analyzing trace with hash -134654241, now seen corresponding path program 1 times [2021-11-02 19:56:19,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:56:19,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059387017] [2021-11-02 19:56:19,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:56:19,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:56:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:56:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 19:56:19,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:56:19,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059387017] [2021-11-02 19:56:19,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059387017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:56:19,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:56:19,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:56:19,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485337883] [2021-11-02 19:56:19,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:56:19,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:56:19,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:56:19,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:56:19,718 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) [2021-11-02 19:56:46,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:56:46,863 INFO L93 Difference]: Finished difference Result 22296 states and 31989 transitions. [2021-11-02 19:56:46,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 19:56:46,864 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 [2021-11-02 19:56:46,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:56:46,897 INFO L225 Difference]: With dead ends: 22296 [2021-11-02 19:56:46,897 INFO L226 Difference]: Without dead ends: 11159 [2021-11-02 19:56:46,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:56:46,914 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 15997 mSDsCounter, 0 mSdLazyCounter, 31844 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22448.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 31846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.21ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26597.16ms IncrementalHoareTripleChecker+Time [2021-11-02 19:56:46,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 31846 Unknown, 0 Unchecked, 49.21ms Time], IncrementalHoareTripleChecker [2 Valid, 31844 Invalid, 0 Unknown, 0 Unchecked, 26597.16ms Time] [2021-11-02 19:56:46,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11159 states. [2021-11-02 19:56:47,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11159 to 11159. [2021-11-02 19:56:47,082 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) [2021-11-02 19:56:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11159 states to 11159 states and 16005 transitions. [2021-11-02 19:56:47,102 INFO L78 Accepts]: Start accepts. Automaton has 11159 states and 16005 transitions. Word has length 48 [2021-11-02 19:56:47,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:56:47,102 INFO L470 AbstractCegarLoop]: Abstraction has 11159 states and 16005 transitions. [2021-11-02 19:56:47,103 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) [2021-11-02 19:56:47,103 INFO L276 IsEmpty]: Start isEmpty. Operand 11159 states and 16005 transitions. [2021-11-02 19:56:47,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-02 19:56:47,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:56:47,106 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] [2021-11-02 19:56:47,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 19:56:47,106 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)] === [2021-11-02 19:56:47,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:56:47,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1579628511, now seen corresponding path program 1 times [2021-11-02 19:56:47,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:56:47,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78022725] [2021-11-02 19:56:47,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:56:47,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:56:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:56:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 19:56:47,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:56:47,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78022725] [2021-11-02 19:56:47,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78022725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:56:47,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:56:47,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 19:56:47,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295939065] [2021-11-02 19:56:47,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:56:47,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:56:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:56:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:56:47,297 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) [2021-11-02 19:57:38,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:57:38,406 INFO L93 Difference]: Finished difference Result 33406 states and 48014 transitions. [2021-11-02 19:57:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 19:57:38,407 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 [2021-11-02 19:57:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:57:38,471 INFO L225 Difference]: With dead ends: 33406 [2021-11-02 19:57:38,471 INFO L226 Difference]: Without dead ends: 22277 [2021-11-02 19:57:38,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:57:38,495 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 15288 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 32057 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41655.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15288 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 32720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.30ms SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 32057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50121.02ms IncrementalHoareTripleChecker+Time [2021-11-02 19:57:38,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15288 Valid, 237 Invalid, 32720 Unknown, 0 Unchecked, 61.30ms Time], IncrementalHoareTripleChecker [663 Valid, 32057 Invalid, 0 Unknown, 0 Unchecked, 50121.02ms Time] [2021-11-02 19:57:38,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22277 states. [2021-11-02 19:57:38,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22277 to 22277. [2021-11-02 19:57:38,951 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) [2021-11-02 19:57:38,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22277 states to 22277 states and 31338 transitions. [2021-11-02 19:57:38,998 INFO L78 Accepts]: Start accepts. Automaton has 22277 states and 31338 transitions. Word has length 50 [2021-11-02 19:57:38,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:57:38,999 INFO L470 AbstractCegarLoop]: Abstraction has 22277 states and 31338 transitions. [2021-11-02 19:57:39,000 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) [2021-11-02 19:57:39,000 INFO L276 IsEmpty]: Start isEmpty. Operand 22277 states and 31338 transitions. [2021-11-02 19:57:39,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-02 19:57:39,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:57:39,004 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] [2021-11-02 19:57:39,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 19:57:39,005 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)] === [2021-11-02 19:57:39,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:57:39,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1723795992, now seen corresponding path program 1 times [2021-11-02 19:57:39,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:57:39,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125748377] [2021-11-02 19:57:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:57:39,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:57:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:57:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 19:57:39,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:57:39,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125748377] [2021-11-02 19:57:39,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125748377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:57:39,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:57:39,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 19:57:39,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274732550] [2021-11-02 19:57:39,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:57:39,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:57:39,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:57:39,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:57:39,151 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) [2021-11-02 19:58:48,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:58:48,372 INFO L93 Difference]: Finished difference Result 66453 states and 93634 transitions. [2021-11-02 19:58:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 19:58:48,373 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 [2021-11-02 19:58:48,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:58:48,477 INFO L225 Difference]: With dead ends: 66453 [2021-11-02 19:58:48,478 INFO L226 Difference]: Without dead ends: 44206 [2021-11-02 19:58:48,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:58:48,525 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 15412 mSDsluCounter, 15311 mSDsCounter, 0 mSdLazyCounter, 32452 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53435.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15412 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 32780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.68ms SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 32452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67706.34ms IncrementalHoareTripleChecker+Time [2021-11-02 19:58:48,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15412 Valid, 200 Invalid, 32780 Unknown, 0 Unchecked, 66.68ms Time], IncrementalHoareTripleChecker [328 Valid, 32452 Invalid, 0 Unknown, 0 Unchecked, 67706.34ms Time] [2021-11-02 19:58:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44206 states. [2021-11-02 19:58:49,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44206 to 44188. [2021-11-02 19:58:49,174 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) [2021-11-02 19:58:49,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44188 states to 44188 states and 61540 transitions. [2021-11-02 19:58:49,517 INFO L78 Accepts]: Start accepts. Automaton has 44188 states and 61540 transitions. Word has length 51 [2021-11-02 19:58:49,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:58:49,518 INFO L470 AbstractCegarLoop]: Abstraction has 44188 states and 61540 transitions. [2021-11-02 19:58:49,518 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) [2021-11-02 19:58:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 44188 states and 61540 transitions. [2021-11-02 19:58:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-02 19:58:49,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:58:49,520 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] [2021-11-02 19:58:49,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 19:58:49,520 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)] === [2021-11-02 19:58:49,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:58:49,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1898020597, now seen corresponding path program 1 times [2021-11-02 19:58:49,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:58:49,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407389578] [2021-11-02 19:58:49,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:58:49,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:58:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:58:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 19:58:49,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:58:49,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407389578] [2021-11-02 19:58:49,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407389578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:58:49,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:58:49,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 19:58:49,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210261677] [2021-11-02 19:58:49,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:58:49,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:58:49,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:58:49,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:58:49,611 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) [2021-11-02 19:59:30,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:59:30,792 INFO L93 Difference]: Finished difference Result 44188 states and 61540 transitions. [2021-11-02 19:59:30,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 19:59:30,792 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 [2021-11-02 19:59:30,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:59:30,882 INFO L225 Difference]: With dead ends: 44188 [2021-11-02 19:59:30,882 INFO L226 Difference]: Without dead ends: 44186 [2021-11-02 19:59:30,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:59:30,899 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 15951 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15921 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30845.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15951 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 15921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40231.63ms IncrementalHoareTripleChecker+Time [2021-11-02 19:59:30,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15951 Valid, 80 Invalid, 15921 Unknown, 0 Unchecked, 28.52ms Time], IncrementalHoareTripleChecker [0 Valid, 15921 Invalid, 0 Unknown, 0 Unchecked, 40231.63ms Time] [2021-11-02 19:59:30,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44186 states. [2021-11-02 19:59:31,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44186 to 44186. [2021-11-02 19:59:31,603 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) [2021-11-02 19:59:31,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44186 states to 44186 states and 61538 transitions. [2021-11-02 19:59:31,687 INFO L78 Accepts]: Start accepts. Automaton has 44186 states and 61538 transitions. Word has length 52 [2021-11-02 19:59:31,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:59:31,687 INFO L470 AbstractCegarLoop]: Abstraction has 44186 states and 61538 transitions. [2021-11-02 19:59:31,688 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) [2021-11-02 19:59:31,688 INFO L276 IsEmpty]: Start isEmpty. Operand 44186 states and 61538 transitions. [2021-11-02 19:59:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-02 19:59:31,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:59:31,691 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] [2021-11-02 19:59:31,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 19:59:31,691 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)] === [2021-11-02 19:59:31,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:59:31,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1290951250, now seen corresponding path program 1 times [2021-11-02 19:59:31,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:59:31,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157563901] [2021-11-02 19:59:31,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:59:31,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:59:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:59:31,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 19:59:31,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:59:31,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157563901] [2021-11-02 19:59:31,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157563901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:59:31,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:59:31,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 19:59:31,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371319285] [2021-11-02 19:59:31,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:59:31,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:59:31,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:59:31,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:59:31,798 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) [2021-11-02 20:00:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:00:24,884 INFO L93 Difference]: Finished difference Result 44186 states and 61538 transitions. [2021-11-02 20:00:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:00:24,884 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 [2021-11-02 20:00:24,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:00:24,965 INFO L225 Difference]: With dead ends: 44186 [2021-11-02 20:00:24,966 INFO L226 Difference]: Without dead ends: 38190 [2021-11-02 20:00:24,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:00:24,989 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 15948 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15919 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37577.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15948 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 15919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51803.61ms IncrementalHoareTripleChecker+Time [2021-11-02 20:00:24,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15948 Valid, 80 Invalid, 15919 Unknown, 0 Unchecked, 31.07ms Time], IncrementalHoareTripleChecker [0 Valid, 15919 Invalid, 0 Unknown, 0 Unchecked, 51803.61ms Time] [2021-11-02 20:00:25,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38190 states. [2021-11-02 20:00:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38190 to 38190. [2021-11-02 20:00:25,821 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) [2021-11-02 20:00:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38190 states to 38190 states and 53499 transitions. [2021-11-02 20:00:25,893 INFO L78 Accepts]: Start accepts. Automaton has 38190 states and 53499 transitions. Word has length 53 [2021-11-02 20:00:25,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:00:25,894 INFO L470 AbstractCegarLoop]: Abstraction has 38190 states and 53499 transitions. [2021-11-02 20:00:25,894 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) [2021-11-02 20:00:25,894 INFO L276 IsEmpty]: Start isEmpty. Operand 38190 states and 53499 transitions. [2021-11-02 20:00:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-02 20:00:25,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:00:25,909 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] [2021-11-02 20:00:25,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 20:00:25,909 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)] === [2021-11-02 20:00:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:00:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash -479131215, now seen corresponding path program 1 times [2021-11-02 20:00:25,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:00:25,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192580347] [2021-11-02 20:00:25,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:00:25,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:00:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:00:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 20:00:26,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:00:26,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192580347] [2021-11-02 20:00:26,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192580347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:00:26,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:00:26,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:00:26,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868590890] [2021-11-02 20:00:26,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:00:26,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:00:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:00:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:00:26,008 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) [2021-11-02 20:01:07,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 20:01:52,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:01:52,121 INFO L93 Difference]: Finished difference Result 91893 states and 128736 transitions. [2021-11-02 20:01:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:01:52,121 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 [2021-11-02 20:01:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:01:52,258 INFO L225 Difference]: With dead ends: 91893 [2021-11-02 20:01:52,259 INFO L226 Difference]: Without dead ends: 53733 [2021-11-02 20:01:52,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:01:52,318 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 14209 mSDsluCounter, 7340 mSDsCounter, 0 mSdLazyCounter, 23494 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59817.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14209 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 23497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.47ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84013.30ms IncrementalHoareTripleChecker+Time [2021-11-02 20:01:52,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14209 Valid, 200 Invalid, 23497 Unknown, 0 Unchecked, 64.47ms Time], IncrementalHoareTripleChecker [3 Valid, 23494 Invalid, 0 Unknown, 0 Unchecked, 84013.30ms Time] [2021-11-02 20:01:52,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53733 states. [2021-11-02 20:01:53,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53733 to 53718. [2021-11-02 20:01:53,433 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) [2021-11-02 20:01:53,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53718 states to 53718 states and 75251 transitions. [2021-11-02 20:01:53,549 INFO L78 Accepts]: Start accepts. Automaton has 53718 states and 75251 transitions. Word has length 78 [2021-11-02 20:01:53,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:01:53,549 INFO L470 AbstractCegarLoop]: Abstraction has 53718 states and 75251 transitions. [2021-11-02 20:01:53,549 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) [2021-11-02 20:01:53,549 INFO L276 IsEmpty]: Start isEmpty. Operand 53718 states and 75251 transitions. [2021-11-02 20:01:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-02 20:01:53,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:01:53,576 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] [2021-11-02 20:01:53,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 20:01:53,576 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)] === [2021-11-02 20:01:53,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:01:53,577 INFO L85 PathProgramCache]: Analyzing trace with hash 969127289, now seen corresponding path program 1 times [2021-11-02 20:01:53,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:01:53,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153778908] [2021-11-02 20:01:53,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:01:53,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:01:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:01:53,700 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 20:01:53,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:01:53,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153778908] [2021-11-02 20:01:53,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153778908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:01:53,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:01:53,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 20:01:53,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071143295] [2021-11-02 20:01:53,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 20:01:53,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:01:53,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 20:01:53,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 20:01:53,702 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) [2021-11-02 20:04:00,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:04:00,337 INFO L93 Difference]: Finished difference Result 131290 states and 184035 transitions. [2021-11-02 20:04:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 20:04:00,337 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 [2021-11-02 20:04:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:04:00,524 INFO L225 Difference]: With dead ends: 131290 [2021-11-02 20:04:00,525 INFO L226 Difference]: Without dead ends: 77602 [2021-11-02 20:04:00,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.64ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 20:04:00,616 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 34885 mSDsluCounter, 16012 mSDsCounter, 0 mSdLazyCounter, 32738 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86336.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34885 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 32752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 182.52ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 123738.56ms IncrementalHoareTripleChecker+Time [2021-11-02 20:04:00,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34885 Valid, 178 Invalid, 32752 Unknown, 0 Unchecked, 182.52ms Time], IncrementalHoareTripleChecker [14 Valid, 32738 Invalid, 0 Unknown, 0 Unchecked, 123738.56ms Time] [2021-11-02 20:04:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77602 states. [2021-11-02 20:04:01,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77602 to 53732. [2021-11-02 20:04:02,042 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) [2021-11-02 20:04:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53732 states to 53732 states and 75265 transitions. [2021-11-02 20:04:02,152 INFO L78 Accepts]: Start accepts. Automaton has 53732 states and 75265 transitions. Word has length 105 [2021-11-02 20:04:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:04:02,152 INFO L470 AbstractCegarLoop]: Abstraction has 53732 states and 75265 transitions. [2021-11-02 20:04:02,152 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) [2021-11-02 20:04:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 53732 states and 75265 transitions. [2021-11-02 20:04:02,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-02 20:04:02,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:04:02,176 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] [2021-11-02 20:04:02,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 20:04:02,176 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)] === [2021-11-02 20:04:02,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:04:02,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1769236928, now seen corresponding path program 1 times [2021-11-02 20:04:02,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:04:02,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702280953] [2021-11-02 20:04:02,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:04:02,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:04:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:04:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 20:04:02,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:04:02,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702280953] [2021-11-02 20:04:02,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702280953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:04:02,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:04:02,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 20:04:02,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374959492] [2021-11-02 20:04:02,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 20:04:02,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:04:02,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 20:04:02,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:04:02,324 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) [2021-11-02 20:05:45,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:05:45,281 INFO L93 Difference]: Finished difference Result 123066 states and 172588 transitions. [2021-11-02 20:05:45,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 20:05:45,282 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 [2021-11-02 20:05:45,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:05:45,446 INFO L225 Difference]: With dead ends: 123066 [2021-11-02 20:05:45,446 INFO L226 Difference]: Without dead ends: 69364 [2021-11-02 20:05:45,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 20:05:45,524 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 11595 mSDsluCounter, 7377 mSDsCounter, 0 mSdLazyCounter, 25737 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69965.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11595 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 25739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.33ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100707.09ms IncrementalHoareTripleChecker+Time [2021-11-02 20:05:45,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11595 Valid, 240 Invalid, 25739 Unknown, 0 Unchecked, 64.33ms Time], IncrementalHoareTripleChecker [2 Valid, 25737 Invalid, 0 Unknown, 0 Unchecked, 100707.09ms Time] [2021-11-02 20:05:45,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69364 states. [2021-11-02 20:05:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69364 to 69364. [2021-11-02 20:05:47,074 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) [2021-11-02 20:05:47,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69364 states to 69364 states and 97339 transitions. [2021-11-02 20:05:47,346 INFO L78 Accepts]: Start accepts. Automaton has 69364 states and 97339 transitions. Word has length 109 [2021-11-02 20:05:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:05:47,346 INFO L470 AbstractCegarLoop]: Abstraction has 69364 states and 97339 transitions. [2021-11-02 20:05:47,346 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) [2021-11-02 20:05:47,347 INFO L276 IsEmpty]: Start isEmpty. Operand 69364 states and 97339 transitions. [2021-11-02 20:05:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-02 20:05:47,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:05:47,396 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] [2021-11-02 20:05:47,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 20:05:47,396 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)] === [2021-11-02 20:05:47,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:05:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1626060955, now seen corresponding path program 1 times [2021-11-02 20:05:47,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:05:47,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926650965] [2021-11-02 20:05:47,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:05:47,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:05:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:05:47,517 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 20:05:47,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:05:47,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926650965] [2021-11-02 20:05:47,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926650965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:05:47,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:05:47,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 20:05:47,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234339112] [2021-11-02 20:05:47,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 20:05:47,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:05:47,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 20:05:47,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 20:05:47,519 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) [2021-11-02 20:07:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 20:07:53,330 INFO L93 Difference]: Finished difference Result 116757 states and 163691 transitions. [2021-11-02 20:07:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 20:07:53,330 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 124 [2021-11-02 20:07:53,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 20:07:53,429 INFO L225 Difference]: With dead ends: 116757 [2021-11-02 20:07:53,429 INFO L226 Difference]: Without dead ends: 42425 [2021-11-02 20:07:53,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.60ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 20:07:53,539 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 4202 mSDsluCounter, 43474 mSDsCounter, 0 mSdLazyCounter, 59066 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86824.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 59070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 141.08ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 123558.99ms IncrementalHoareTripleChecker+Time [2021-11-02 20:07:53,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4202 Valid, 320 Invalid, 59070 Unknown, 0 Unchecked, 141.08ms Time], IncrementalHoareTripleChecker [4 Valid, 59066 Invalid, 0 Unknown, 0 Unchecked, 123558.99ms Time] [2021-11-02 20:07:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42425 states. [2021-11-02 20:07:54,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42425 to 40422. [2021-11-02 20:07:54,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40422 states, 39820 states have (on average 1.4039678553490709) internal successors, (55906), 39891 states have internal predecessors, (55906), 400 states have call successors, (400), 200 states have call predecessors, (400), 200 states have return successors, (560), 370 states have call predecessors, (560), 400 states have call successors, (560) [2021-11-02 20:07:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40422 states to 40422 states and 56866 transitions. [2021-11-02 20:07:54,788 INFO L78 Accepts]: Start accepts. Automaton has 40422 states and 56866 transitions. Word has length 124 [2021-11-02 20:07:54,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 20:07:54,788 INFO L470 AbstractCegarLoop]: Abstraction has 40422 states and 56866 transitions. [2021-11-02 20:07:54,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-02 20:07:54,788 INFO L276 IsEmpty]: Start isEmpty. Operand 40422 states and 56866 transitions. [2021-11-02 20:07:54,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-02 20:07:54,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:07:54,821 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 20:07:54,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 20:07:54,822 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-02 20:07:54,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:07:54,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1978708132, now seen corresponding path program 1 times [2021-11-02 20:07:54,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:07:54,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489381325] [2021-11-02 20:07:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:07:54,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:07:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:07:54,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-02 20:07:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:07:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-02 20:07:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:07:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-02 20:07:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:07:54,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-02 20:07:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:07:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 20:07:55,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:07:55,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489381325] [2021-11-02 20:07:55,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489381325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:07:55,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:07:55,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 20:07:55,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74237613] [2021-11-02 20:07:55,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 20:07:55,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:07:55,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 20:07:55,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 20:07:55,010 INFO L87 Difference]: Start difference. First operand 40422 states and 56866 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Killed by 15