./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f258bb699a014f11eb0babe874a45670072f33ce1154e31a2f0110b34e4ef74 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 05:23:38,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 05:23:38,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 05:23:38,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 05:23:38,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 05:23:38,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 05:23:38,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 05:23:38,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 05:23:38,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 05:23:38,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 05:23:38,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 05:23:38,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 05:23:38,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 05:23:38,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 05:23:38,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 05:23:38,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 05:23:38,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 05:23:38,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 05:23:38,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 05:23:38,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 05:23:38,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 05:23:38,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 05:23:38,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 05:23:38,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 05:23:38,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 05:23:38,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 05:23:38,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 05:23:38,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 05:23:38,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 05:23:38,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 05:23:38,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 05:23:38,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 05:23:38,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 05:23:38,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 05:23:38,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 05:23:38,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 05:23:38,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 05:23:38,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 05:23:38,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 05:23:38,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 05:23:38,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 05:23:38,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 05:23:38,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 05:23:38,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 05:23:38,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 05:23:38,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 05:23:38,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 05:23:38,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 05:23:38,865 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 05:23:38,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 05:23:38,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 05:23:38,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 05:23:38,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 05:23:38,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 05:23:38,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 05:23:38,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 05:23:38,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 05:23:38,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 05:23:38,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 05:23:38,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 05:23:38,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 05:23:38,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:23:38,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 05:23:38,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 05:23:38,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 05:23:38,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 05:23:38,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 05:23:38,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 05:23:38,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 05:23:38,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 05:23:38,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 05:23:38,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f258bb699a014f11eb0babe874a45670072f33ce1154e31a2f0110b34e4ef74 [2021-11-04 05:23:39,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 05:23:39,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 05:23:39,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 05:23:39,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 05:23:39,097 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 05:23:39,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:23:39,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/004cf63a8/dfc298653f5b4d9b9a543b23687158ec/FLAG53145c5d2 [2021-11-04 05:23:39,680 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 05:23:39,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:23:39,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/004cf63a8/dfc298653f5b4d9b9a543b23687158ec/FLAG53145c5d2 [2021-11-04 05:23:39,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/004cf63a8/dfc298653f5b4d9b9a543b23687158ec [2021-11-04 05:23:39,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 05:23:39,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 05:23:39,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 05:23:39,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 05:23:39,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 05:23:39,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:23:39" (1/1) ... [2021-11-04 05:23:39,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbe6cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:39, skipping insertion in model container [2021-11-04 05:23:39,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:23:39" (1/1) ... [2021-11-04 05:23:39,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 05:23:40,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 05:23:41,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[239447,239460] [2021-11-04 05:23:41,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:23:41,352 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 05:23:41,595 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[239447,239460] [2021-11-04 05:23:41,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:23:41,682 INFO L208 MainTranslator]: Completed translation [2021-11-04 05:23:41,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41 WrapperNode [2021-11-04 05:23:41,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 05:23:41,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 05:23:41,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 05:23:41,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 05:23:41,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:41,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:43,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 05:23:43,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 05:23:43,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 05:23:43,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 05:23:43,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:43,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:43,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:43,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:44,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:44,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:44,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:45,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 05:23:45,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 05:23:45,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 05:23:45,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 05:23:45,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (1/1) ... [2021-11-04 05:23:45,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:23:45,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:23:45,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 05:23:45,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 05:23:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 05:23:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 05:23:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-04 05:23:45,166 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-04 05:23:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-04 05:23:45,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-04 05:23:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-04 05:23:45,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-04 05:23:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-04 05:23:45,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-04 05:23:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2021-11-04 05:23:45,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2021-11-04 05:23:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-04 05:23:45,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-04 05:23:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 05:23:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2021-11-04 05:23:45,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2021-11-04 05:23:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 05:23:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2021-11-04 05:23:45,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2021-11-04 05:23:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-04 05:23:45,169 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-04 05:23:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2021-11-04 05:23:45,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2021-11-04 05:23:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 05:23:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 05:23:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-04 05:23:45,169 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-04 05:23:45,169 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-04 05:23:45,169 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-04 05:23:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 05:23:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-04 05:23:45,170 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-04 05:23:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 05:23:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-04 05:23:45,170 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-04 05:23:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 05:23:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-04 05:23:45,171 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-04 05:23:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 05:23:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2021-11-04 05:23:45,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2021-11-04 05:23:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 05:23:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 05:23:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 05:23:45,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 05:23:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-04 05:23:45,172 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-04 05:23:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-04 05:23:45,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-04 05:23:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-04 05:23:45,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-04 05:23:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-04 05:23:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 05:23:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-04 05:23:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 05:23:45,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 05:23:50,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 05:23:50,319 INFO L299 CfgBuilder]: Removed 14764 assume(true) statements. [2021-11-04 05:23:50,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:23:50 BoogieIcfgContainer [2021-11-04 05:23:50,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 05:23:50,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 05:23:50,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 05:23:50,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 05:23:50,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 05:23:39" (1/3) ... [2021-11-04 05:23:50,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791d150b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:23:50, skipping insertion in model container [2021-11-04 05:23:50,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:41" (2/3) ... [2021-11-04 05:23:50,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791d150b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:23:50, skipping insertion in model container [2021-11-04 05:23:50,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:23:50" (3/3) ... [2021-11-04 05:23:50,335 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:23:50,339 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 05:23:50,339 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-04 05:23:50,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 05:23:50,405 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 05:23:50,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-04 05:23:50,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 11120 states, 11055 states have (on average 1.4388964269561284) internal successors, (15907), 11066 states have internal predecessors, (15907), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-04 05:23:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-04 05:23:50,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:23:50,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:23:50,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:23:50,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:23:50,722 INFO L85 PathProgramCache]: Analyzing trace with hash -490614643, now seen corresponding path program 1 times [2021-11-04 05:23:50,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:23:50,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38155656] [2021-11-04 05:23:50,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:23:50,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:23:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:23:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:23:51,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:23:51,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38155656] [2021-11-04 05:23:51,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38155656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:23:51,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:23:51,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:23:51,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278568973] [2021-11-04 05:23:51,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:23:51,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 05:23:51,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:23:51,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 05:23:51,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:23:51,184 INFO L87 Difference]: Start difference. First operand has 11120 states, 11055 states have (on average 1.4388964269561284) internal successors, (15907), 11066 states have internal predecessors, (15907), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:24:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:24:06,459 INFO L93 Difference]: Finished difference Result 22236 states and 32001 transitions. [2021-11-04 05:24:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 05:24:06,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-04 05:24:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:24:06,515 INFO L225 Difference]: With dead ends: 22236 [2021-11-04 05:24:06,515 INFO L226 Difference]: Without dead ends: 11103 [2021-11-04 05:24:06,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:24:06,538 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15867 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12062.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 15867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14734.29ms IncrementalHoareTripleChecker+Time [2021-11-04 05:24:06,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 15867 Unknown, 0 Unchecked, 34.40ms Time], IncrementalHoareTripleChecker [0 Valid, 15867 Invalid, 0 Unknown, 0 Unchecked, 14734.29ms Time] [2021-11-04 05:24:06,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11103 states. [2021-11-04 05:24:06,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11103 to 11103. [2021-11-04 05:24:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11103 states, 11039 states have (on average 1.4358184618171936) internal successors, (15850), 11049 states have internal predecessors, (15850), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-04 05:24:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11103 states to 11103 states and 15930 transitions. [2021-11-04 05:24:06,806 INFO L78 Accepts]: Start accepts. Automaton has 11103 states and 15930 transitions. Word has length 47 [2021-11-04 05:24:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:24:06,806 INFO L470 AbstractCegarLoop]: Abstraction has 11103 states and 15930 transitions. [2021-11-04 05:24:06,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:24:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 11103 states and 15930 transitions. [2021-11-04 05:24:06,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-04 05:24:06,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:24:06,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:24:06,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 05:24:06,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:24:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:24:06,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1635357639, now seen corresponding path program 1 times [2021-11-04 05:24:06,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:24:06,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634530691] [2021-11-04 05:24:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:24:06,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:24:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:24:06,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:24:06,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:24:06,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634530691] [2021-11-04 05:24:06,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634530691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:24:06,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:24:06,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:24:06,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793322162] [2021-11-04 05:24:06,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:24:06,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:24:06,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:24:06,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:24:06,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:24:06,963 INFO L87 Difference]: Start difference. First operand 11103 states and 15930 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:24:33,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:24:33,119 INFO L93 Difference]: Finished difference Result 22188 states and 31843 transitions. [2021-11-04 05:24:33,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:24:33,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-04 05:24:33,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:24:33,157 INFO L225 Difference]: With dead ends: 22188 [2021-11-04 05:24:33,157 INFO L226 Difference]: Without dead ends: 11105 [2021-11-04 05:24:33,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:24:33,182 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 15924 mSDsCounter, 0 mSdLazyCounter, 31698 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21419.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 31700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 60.77ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25630.92ms IncrementalHoareTripleChecker+Time [2021-11-04 05:24:33,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 31700 Unknown, 0 Unchecked, 60.77ms Time], IncrementalHoareTripleChecker [2 Valid, 31698 Invalid, 0 Unknown, 0 Unchecked, 25630.92ms Time] [2021-11-04 05:24:33,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11105 states. [2021-11-04 05:24:33,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11105 to 11105. [2021-11-04 05:24:33,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11105 states, 11041 states have (on average 1.4357395163481568) internal successors, (15852), 11051 states have internal predecessors, (15852), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-04 05:24:33,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11105 states to 11105 states and 15932 transitions. [2021-11-04 05:24:33,470 INFO L78 Accepts]: Start accepts. Automaton has 11105 states and 15932 transitions. Word has length 47 [2021-11-04 05:24:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:24:33,470 INFO L470 AbstractCegarLoop]: Abstraction has 11105 states and 15932 transitions. [2021-11-04 05:24:33,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:24:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 11105 states and 15932 transitions. [2021-11-04 05:24:33,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-04 05:24:33,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:24:33,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:24:33,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 05:24:33,475 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:24:33,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:24:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash 757461573, now seen corresponding path program 1 times [2021-11-04 05:24:33,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:24:33,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320535364] [2021-11-04 05:24:33,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:24:33,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:24:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:24:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:24:33,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:24:33,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320535364] [2021-11-04 05:24:33,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320535364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:24:33,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:24:33,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:24:33,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080114802] [2021-11-04 05:24:33,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:24:33,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:24:33,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:24:33,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:24:33,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:24:33,673 INFO L87 Difference]: Start difference. First operand 11105 states and 15932 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:25:21,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:25:21,469 INFO L93 Difference]: Finished difference Result 33244 states and 47795 transitions. [2021-11-04 05:25:21,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:25:21,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-04 05:25:21,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:25:21,553 INFO L225 Difference]: With dead ends: 33244 [2021-11-04 05:25:21,553 INFO L226 Difference]: Without dead ends: 22169 [2021-11-04 05:25:21,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:25:21,721 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 15220 mSDsluCounter, 14603 mSDsCounter, 0 mSdLazyCounter, 31911 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38224.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15220 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 32570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.72ms SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 31911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46713.18ms IncrementalHoareTripleChecker+Time [2021-11-04 05:25:21,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15220 Valid, 237 Invalid, 32570 Unknown, 0 Unchecked, 81.72ms Time], IncrementalHoareTripleChecker [659 Valid, 31911 Invalid, 0 Unknown, 0 Unchecked, 46713.18ms Time] [2021-11-04 05:25:21,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22169 states. [2021-11-04 05:25:22,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22169 to 22169. [2021-11-04 05:25:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22169 states, 22045 states have (on average 1.4063960081651168) internal successors, (31004), 22062 states have internal predecessors, (31004), 80 states have call successors, (80), 40 states have call predecessors, (80), 40 states have return successors, (112), 74 states have call predecessors, (112), 80 states have call successors, (112) [2021-11-04 05:25:22,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22169 states to 22169 states and 31196 transitions. [2021-11-04 05:25:22,151 INFO L78 Accepts]: Start accepts. Automaton has 22169 states and 31196 transitions. Word has length 49 [2021-11-04 05:25:22,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:25:22,152 INFO L470 AbstractCegarLoop]: Abstraction has 22169 states and 31196 transitions. [2021-11-04 05:25:22,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:25:22,153 INFO L276 IsEmpty]: Start isEmpty. Operand 22169 states and 31196 transitions. [2021-11-04 05:25:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-04 05:25:22,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:25:22,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:25:22,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 05:25:22,157 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:25:22,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:25:22,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2006519682, now seen corresponding path program 1 times [2021-11-04 05:25:22,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:25:22,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347619684] [2021-11-04 05:25:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:25:22,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:25:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:25:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:25:22,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:25:22,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347619684] [2021-11-04 05:25:22,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347619684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:25:22,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:25:22,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:25:22,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924621462] [2021-11-04 05:25:22,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:25:22,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:25:22,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:25:22,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:25:22,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:25:22,317 INFO L87 Difference]: Start difference. First operand 22169 states and 31196 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:26:31,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:26:31,952 INFO L93 Difference]: Finished difference Result 66129 states and 93208 transitions. [2021-11-04 05:26:31,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:26:31,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-04 05:26:31,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:26:32,068 INFO L225 Difference]: With dead ends: 66129 [2021-11-04 05:26:32,068 INFO L226 Difference]: Without dead ends: 43990 [2021-11-04 05:26:32,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:26:32,129 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 15342 mSDsluCounter, 15242 mSDsCounter, 0 mSdLazyCounter, 32302 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52599.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15342 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 32628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.10ms SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 32302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68120.58ms IncrementalHoareTripleChecker+Time [2021-11-04 05:26:32,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15342 Valid, 200 Invalid, 32628 Unknown, 0 Unchecked, 75.10ms Time], IncrementalHoareTripleChecker [326 Valid, 32302 Invalid, 0 Unknown, 0 Unchecked, 68120.58ms Time] [2021-11-04 05:26:32,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43990 states. [2021-11-04 05:26:32,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43990 to 43972. [2021-11-04 05:26:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43972 states, 43728 states have (on average 1.3921514818880352) internal successors, (60876), 43759 states have internal predecessors, (60876), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (224), 148 states have call predecessors, (224), 160 states have call successors, (224) [2021-11-04 05:26:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43972 states to 43972 states and 61260 transitions. [2021-11-04 05:26:33,108 INFO L78 Accepts]: Start accepts. Automaton has 43972 states and 61260 transitions. Word has length 50 [2021-11-04 05:26:33,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:26:33,109 INFO L470 AbstractCegarLoop]: Abstraction has 43972 states and 61260 transitions. [2021-11-04 05:26:33,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:26:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand 43972 states and 61260 transitions. [2021-11-04 05:26:33,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-04 05:26:33,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:26:33,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:26:33,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 05:26:33,114 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:26:33,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:26:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2072615407, now seen corresponding path program 1 times [2021-11-04 05:26:33,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:26:33,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731469825] [2021-11-04 05:26:33,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:26:33,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:26:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:26:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:26:33,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:26:33,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731469825] [2021-11-04 05:26:33,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731469825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:26:33,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:26:33,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:26:33,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066830272] [2021-11-04 05:26:33,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:26:33,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:26:33,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:26:33,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:26:33,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:26:33,242 INFO L87 Difference]: Start difference. First operand 43972 states and 61260 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:27:07,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:27:07,251 INFO L93 Difference]: Finished difference Result 43972 states and 61260 transitions. [2021-11-04 05:27:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:27:07,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-04 05:27:07,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:27:07,338 INFO L225 Difference]: With dead ends: 43972 [2021-11-04 05:27:07,338 INFO L226 Difference]: Without dead ends: 43970 [2021-11-04 05:27:07,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:27:07,359 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 15879 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15848 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26426.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15879 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 15848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33224.35ms IncrementalHoareTripleChecker+Time [2021-11-04 05:27:07,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15879 Valid, 80 Invalid, 15848 Unknown, 0 Unchecked, 24.51ms Time], IncrementalHoareTripleChecker [0 Valid, 15848 Invalid, 0 Unknown, 0 Unchecked, 33224.35ms Time] [2021-11-04 05:27:07,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43970 states. [2021-11-04 05:27:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43970 to 43970. [2021-11-04 05:27:07,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43970 states, 43727 states have (on average 1.392137580899673) internal successors, (60874), 43757 states have internal predecessors, (60874), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (224), 148 states have call predecessors, (224), 160 states have call successors, (224) [2021-11-04 05:27:08,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43970 states to 43970 states and 61258 transitions. [2021-11-04 05:27:08,082 INFO L78 Accepts]: Start accepts. Automaton has 43970 states and 61258 transitions. Word has length 51 [2021-11-04 05:27:08,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:27:08,082 INFO L470 AbstractCegarLoop]: Abstraction has 43970 states and 61258 transitions. [2021-11-04 05:27:08,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:27:08,082 INFO L276 IsEmpty]: Start isEmpty. Operand 43970 states and 61258 transitions. [2021-11-04 05:27:08,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-04 05:27:08,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:27:08,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:27:08,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 05:27:08,085 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:27:08,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:27:08,086 INFO L85 PathProgramCache]: Analyzing trace with hash -173384404, now seen corresponding path program 1 times [2021-11-04 05:27:08,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:27:08,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239018571] [2021-11-04 05:27:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:27:08,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:27:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:27:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:27:08,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:27:08,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239018571] [2021-11-04 05:27:08,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239018571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:27:08,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:27:08,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:27:08,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878605995] [2021-11-04 05:27:08,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:27:08,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:27:08,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:27:08,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:27:08,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:27:08,353 INFO L87 Difference]: Start difference. First operand 43970 states and 61258 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:27:51,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:27:51,553 INFO L93 Difference]: Finished difference Result 43970 states and 61258 transitions. [2021-11-04 05:27:51,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:27:51,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-04 05:27:51,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:27:51,636 INFO L225 Difference]: With dead ends: 43970 [2021-11-04 05:27:51,637 INFO L226 Difference]: Without dead ends: 37974 [2021-11-04 05:27:51,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:27:51,661 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 15876 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15846 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31991.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15876 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 15846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42138.84ms IncrementalHoareTripleChecker+Time [2021-11-04 05:27:51,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15876 Valid, 80 Invalid, 15846 Unknown, 0 Unchecked, 29.94ms Time], IncrementalHoareTripleChecker [0 Valid, 15846 Invalid, 0 Unknown, 0 Unchecked, 42138.84ms Time] [2021-11-04 05:27:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37974 states. [2021-11-04 05:27:52,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37974 to 37974. [2021-11-04 05:27:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37974 states, 37732 states have (on average 1.4002703275734125) internal successors, (52835), 37761 states have internal predecessors, (52835), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (224), 148 states have call predecessors, (224), 160 states have call successors, (224) [2021-11-04 05:27:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37974 states to 37974 states and 53219 transitions. [2021-11-04 05:27:52,304 INFO L78 Accepts]: Start accepts. Automaton has 37974 states and 53219 transitions. Word has length 52 [2021-11-04 05:27:52,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:27:52,304 INFO L470 AbstractCegarLoop]: Abstraction has 37974 states and 53219 transitions. [2021-11-04 05:27:52,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:27:52,305 INFO L276 IsEmpty]: Start isEmpty. Operand 37974 states and 53219 transitions. [2021-11-04 05:27:52,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-04 05:27:52,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:27:52,317 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:27:52,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 05:27:52,317 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:27:52,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:27:52,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2048068383, now seen corresponding path program 1 times [2021-11-04 05:27:52,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:27:52,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137198124] [2021-11-04 05:27:52,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:27:52,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:27:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:27:52,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:27:52,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:27:52,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137198124] [2021-11-04 05:27:52,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137198124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:27:52,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:27:52,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:27:52,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629268864] [2021-11-04 05:27:52,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:27:52,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:27:52,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:27:52,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:27:52,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:27:52,409 INFO L87 Difference]: Start difference. First operand 37974 states and 53219 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:28:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:28:58,027 INFO L93 Difference]: Finished difference Result 91245 states and 127896 transitions. [2021-11-04 05:28:58,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:28:58,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-04 05:28:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:28:58,247 INFO L225 Difference]: With dead ends: 91245 [2021-11-04 05:28:58,247 INFO L226 Difference]: Without dead ends: 53301 [2021-11-04 05:28:58,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:28:58,307 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 14137 mSDsluCounter, 7267 mSDsCounter, 0 mSdLazyCounter, 23342 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48097.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14137 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 23345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.69ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64044.86ms IncrementalHoareTripleChecker+Time [2021-11-04 05:28:58,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14137 Valid, 200 Invalid, 23345 Unknown, 0 Unchecked, 51.69ms Time], IncrementalHoareTripleChecker [3 Valid, 23342 Invalid, 0 Unknown, 0 Unchecked, 64044.86ms Time] [2021-11-04 05:28:58,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53301 states. [2021-11-04 05:28:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53301 to 53286. [2021-11-04 05:28:59,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53286 states, 52804 states have (on average 1.3999507613059616) internal successors, (73923), 52861 states have internal predecessors, (73923), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (448), 296 states have call predecessors, (448), 320 states have call successors, (448) [2021-11-04 05:28:59,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53286 states to 53286 states and 74691 transitions. [2021-11-04 05:28:59,422 INFO L78 Accepts]: Start accepts. Automaton has 53286 states and 74691 transitions. Word has length 75 [2021-11-04 05:28:59,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:28:59,422 INFO L470 AbstractCegarLoop]: Abstraction has 53286 states and 74691 transitions. [2021-11-04 05:28:59,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:28:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 53286 states and 74691 transitions. [2021-11-04 05:28:59,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-04 05:28:59,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:28:59,445 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:28:59,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 05:28:59,446 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:28:59,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:28:59,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1744421538, now seen corresponding path program 1 times [2021-11-04 05:28:59,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:28:59,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339635343] [2021-11-04 05:28:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:28:59,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:28:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:28:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-04 05:28:59,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:28:59,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339635343] [2021-11-04 05:28:59,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339635343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:28:59,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:28:59,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 05:28:59,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065721805] [2021-11-04 05:28:59,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:28:59,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:28:59,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:28:59,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:28:59,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 05:28:59,535 INFO L87 Difference]: Start difference. First operand 53286 states and 74691 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:31:05,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:31:05,216 INFO L93 Difference]: Finished difference Result 129994 states and 182355 transitions. [2021-11-04 05:31:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 05:31:05,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 101 [2021-11-04 05:31:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:31:05,386 INFO L225 Difference]: With dead ends: 129994 [2021-11-04 05:31:05,386 INFO L226 Difference]: Without dead ends: 76738 [2021-11-04 05:31:05,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.87ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:31:05,477 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 34730 mSDsluCounter, 15939 mSDsCounter, 0 mSdLazyCounter, 32528 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85521.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34730 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 32542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 178.97ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122901.72ms IncrementalHoareTripleChecker+Time [2021-11-04 05:31:05,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34730 Valid, 178 Invalid, 32542 Unknown, 0 Unchecked, 178.97ms Time], IncrementalHoareTripleChecker [14 Valid, 32528 Invalid, 0 Unknown, 0 Unchecked, 122901.72ms Time] [2021-11-04 05:31:05,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76738 states. [2021-11-04 05:31:06,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76738 to 53300. [2021-11-04 05:31:06,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53300 states, 52818 states have (on average 1.3998447498958688) internal successors, (73937), 52875 states have internal predecessors, (73937), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (448), 296 states have call predecessors, (448), 320 states have call successors, (448) [2021-11-04 05:31:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53300 states to 53300 states and 74705 transitions. [2021-11-04 05:31:06,815 INFO L78 Accepts]: Start accepts. Automaton has 53300 states and 74705 transitions. Word has length 101 [2021-11-04 05:31:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:31:06,816 INFO L470 AbstractCegarLoop]: Abstraction has 53300 states and 74705 transitions. [2021-11-04 05:31:06,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:31:06,816 INFO L276 IsEmpty]: Start isEmpty. Operand 53300 states and 74705 transitions. [2021-11-04 05:31:06,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-04 05:31:06,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:31:06,888 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:31:06,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 05:31:06,888 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:31:06,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:31:06,888 INFO L85 PathProgramCache]: Analyzing trace with hash 536367099, now seen corresponding path program 1 times [2021-11-04 05:31:06,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:31:06,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307385813] [2021-11-04 05:31:06,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:31:06,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:31:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:31:07,349 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 05:31:07,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:31:07,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307385813] [2021-11-04 05:31:07,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307385813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:31:07,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:31:07,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:31:07,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19705286] [2021-11-04 05:31:07,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:31:07,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:31:07,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:31:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:31:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:31:07,352 INFO L87 Difference]: Start difference. First operand 53300 states and 74705 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:32:47,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:32:47,011 INFO L93 Difference]: Finished difference Result 121770 states and 170908 transitions. [2021-11-04 05:32:47,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:32:47,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-04 05:32:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:32:47,184 INFO L225 Difference]: With dead ends: 121770 [2021-11-04 05:32:47,185 INFO L226 Difference]: Without dead ends: 68500 [2021-11-04 05:32:47,276 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 [2021-11-04 05:32:47,276 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 11523 mSDsluCounter, 7304 mSDsCounter, 0 mSdLazyCounter, 25524 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68038.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11523 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 25526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.16ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97417.87ms IncrementalHoareTripleChecker+Time [2021-11-04 05:32:47,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11523 Valid, 240 Invalid, 25526 Unknown, 0 Unchecked, 64.16ms Time], IncrementalHoareTripleChecker [2 Valid, 25524 Invalid, 0 Unknown, 0 Unchecked, 97417.87ms Time] [2021-11-04 05:32:47,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68500 states. [2021-11-04 05:32:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68500 to 68500. [2021-11-04 05:32:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68500 states, 67538 states have (on average 1.4019218810151322) internal successors, (94683), 67651 states have internal predecessors, (94683), 640 states have call successors, (640), 320 states have call predecessors, (640), 320 states have return successors, (896), 592 states have call predecessors, (896), 640 states have call successors, (896) [2021-11-04 05:32:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68500 states to 68500 states and 96219 transitions. [2021-11-04 05:32:48,981 INFO L78 Accepts]: Start accepts. Automaton has 68500 states and 96219 transitions. Word has length 105 [2021-11-04 05:32:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:32:48,982 INFO L470 AbstractCegarLoop]: Abstraction has 68500 states and 96219 transitions. [2021-11-04 05:32:48,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:32:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand 68500 states and 96219 transitions. [2021-11-04 05:32:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-04 05:32:49,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:32:49,030 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:32:49,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 05:32:49,031 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:32:49,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:32:49,031 INFO L85 PathProgramCache]: Analyzing trace with hash 439616977, now seen corresponding path program 1 times [2021-11-04 05:32:49,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:32:49,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425844368] [2021-11-04 05:32:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:32:49,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:32:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:32:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 05:32:49,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:32:49,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425844368] [2021-11-04 05:32:49,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425844368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:32:49,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:32:49,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:32:49,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718320585] [2021-11-04 05:32:49,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:32:49,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:32:49,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:32:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:32:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:32:49,122 INFO L87 Difference]: Start difference. First operand 68500 states and 96219 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:34:31,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:34:31,468 INFO L93 Difference]: Finished difference Result 115363 states and 161883 transitions. [2021-11-04 05:34:31,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:34:31,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 120 [2021-11-04 05:34:31,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:34:31,573 INFO L225 Difference]: With dead ends: 115363 [2021-11-04 05:34:31,573 INFO L226 Difference]: Without dead ends: 46891 [2021-11-04 05:34:31,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:34:31,679 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 3 mSDsluCounter, 15822 mSDsCounter, 0 mSdLazyCounter, 31494 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69733.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 31494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100451.69ms IncrementalHoareTripleChecker+Time [2021-11-04 05:34:31,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 160 Invalid, 31494 Unknown, 0 Unchecked, 75.55ms Time], IncrementalHoareTripleChecker [0 Valid, 31494 Invalid, 0 Unknown, 0 Unchecked, 100451.69ms Time] [2021-11-04 05:34:31,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46891 states. [2021-11-04 05:34:32,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46891 to 46885. [2021-11-04 05:34:32,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46885 states, 46283 states have (on average 1.398461638182486) internal successors, (64725), 46354 states have internal predecessors, (64725), 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) [2021-11-04 05:34:32,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46885 states to 46885 states and 65685 transitions. [2021-11-04 05:34:32,977 INFO L78 Accepts]: Start accepts. Automaton has 46885 states and 65685 transitions. Word has length 120 [2021-11-04 05:34:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:34:32,978 INFO L470 AbstractCegarLoop]: Abstraction has 46885 states and 65685 transitions. [2021-11-04 05:34:32,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:34:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 46885 states and 65685 transitions. [2021-11-04 05:34:33,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-04 05:34:33,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:34:33,047 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] [2021-11-04 05:34:33,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 05:34:33,048 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)] === [2021-11-04 05:34:33,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:34:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash 718545373, now seen corresponding path program 1 times [2021-11-04 05:34:33,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:34:33,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470670527] [2021-11-04 05:34:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:34:33,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:34:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:34:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-04 05:34:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:34:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-04 05:34:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:34:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-04 05:34:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:34:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-04 05:34:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:34:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 05:34:33,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:34:33,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470670527] [2021-11-04 05:34:33,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470670527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:34:33,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:34:33,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 05:34:33,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331259060] [2021-11-04 05:34:33,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:34:33,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 05:34:33,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:34:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 05:34:33,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:34:33,333 INFO L87 Difference]: Start difference. First operand 46885 states and 65685 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) [2021-11-04 05:36:40,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:36:40,165 INFO L93 Difference]: Finished difference Result 94570 states and 132893 transitions. [2021-11-04 05:36:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 05:36:40,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) Word has length 135 [2021-11-04 05:36:40,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:36:40,288 INFO L225 Difference]: With dead ends: 94570 [2021-11-04 05:36:40,288 INFO L226 Difference]: Without dead ends: 47715 [2021-11-04 05:36:40,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.52ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-04 05:36:40,396 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 407 mSDsluCounter, 39538 mSDsCounter, 0 mSdLazyCounter, 62768 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88943.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 62820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 203.47ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 62768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124655.56ms IncrementalHoareTripleChecker+Time [2021-11-04 05:36:40,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 240 Invalid, 62820 Unknown, 0 Unchecked, 203.47ms Time], IncrementalHoareTripleChecker [52 Valid, 62768 Invalid, 0 Unknown, 0 Unchecked, 124655.56ms Time] [2021-11-04 05:36:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47715 states. [2021-11-04 05:36:41,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47715 to 47045. [2021-11-04 05:36:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47045 states, 46398 states have (on average 1.3975817923186344) internal successors, (64845), 46484 states have internal predecessors, (64845), 405 states have call successors, (405), 200 states have call predecessors, (405), 240 states have return successors, (635), 410 states have call predecessors, (635), 405 states have call successors, (635) [2021-11-04 05:36:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47045 states to 47045 states and 65885 transitions. [2021-11-04 05:36:41,640 INFO L78 Accepts]: Start accepts. Automaton has 47045 states and 65885 transitions. Word has length 135 [2021-11-04 05:36:41,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:36:41,640 INFO L470 AbstractCegarLoop]: Abstraction has 47045 states and 65885 transitions. [2021-11-04 05:36:41,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) [2021-11-04 05:36:41,640 INFO L276 IsEmpty]: Start isEmpty. Operand 47045 states and 65885 transitions. [2021-11-04 05:36:41,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-04 05:36:41,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:36:41,683 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] [2021-11-04 05:36:41,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-04 05:36:41,684 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-04 05:36:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:36:41,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1475801036, now seen corresponding path program 1 times [2021-11-04 05:36:41,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:36:41,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689079958] [2021-11-04 05:36:41,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:36:41,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:36:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:36:41,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-04 05:36:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:36:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-04 05:36:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:36:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-04 05:36:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:36:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-04 05:36:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:36:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 05:36:42,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:36:42,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689079958] [2021-11-04 05:36:42,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689079958] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 05:36:42,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078254555] [2021-11-04 05:36:42,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:36:42,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:36:42,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:36:42,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 05:36:42,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 05:36:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:36:43,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 2460 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-04 05:36:43,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 05:36:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 05:36:43,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 05:36:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-04 05:36:43,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078254555] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 05:36:43,799 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-04 05:36:43,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2021-11-04 05:36:43,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689411320] [2021-11-04 05:36:43,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-04 05:36:43,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-04 05:36:43,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:36:43,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-04 05:36:43,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-04 05:36:43,801 INFO L87 Difference]: Start difference. First operand 47045 states and 65885 transitions. Second operand has 9 states, 9 states have (on average 22.444444444444443) internal successors, (202), 8 states have internal predecessors, (202), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-04 05:36:45,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15