./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.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 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:45:42,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:45:42,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:45:42,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:45:42,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:45:42,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:45:42,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:45:42,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:45:42,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:45:42,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:45:42,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:45:42,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:45:42,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:45:42,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:45:42,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:45:42,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:45:42,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:45:42,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:45:42,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:45:42,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:45:42,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:45:42,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:45:42,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:45:42,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:45:42,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:45:42,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:45:42,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:45:42,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:45:42,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:45:42,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:45:42,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:45:42,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:45:42,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:45:42,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:45:42,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:45:42,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:45:42,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:45:42,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:45:42,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:45:42,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:45:42,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:45:42,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:45:42,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:45:42,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:45:42,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:45:42,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:45:42,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:45:42,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:45:42,799 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:45:42,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:45:42,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:45:42,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:45:42,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:45:42,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:45:42,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:45:42,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:45:42,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:45:42,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:45:42,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:45:42,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:45:42,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:45:42,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:45:42,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:45:42,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:45:42,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:45:42,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:45:42,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:45:42,802 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:45:42,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:45:42,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:45:42,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:45:42,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a [2021-11-06 17:45:43,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:45:43,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:45:43,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:45:43,040 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:45:43,041 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:45:43,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2021-11-06 17:45:43,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9032001/d6146f9df99a4174af01c5098e7357c9/FLAG820fcd9ca [2021-11-06 17:45:43,768 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:45:43,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2021-11-06 17:45:43,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9032001/d6146f9df99a4174af01c5098e7357c9/FLAG820fcd9ca [2021-11-06 17:45:43,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9032001/d6146f9df99a4174af01c5098e7357c9 [2021-11-06 17:45:43,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:45:43,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:45:43,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:45:43,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:45:43,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:45:43,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:45:43" (1/1) ... [2021-11-06 17:45:43,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd2500d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:43, skipping insertion in model container [2021-11-06 17:45:43,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:45:43" (1/1) ... [2021-11-06 17:45:43,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:45:43,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:45:45,613 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2021-11-06 17:45:45,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:45:45,678 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:45:46,218 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2021-11-06 17:45:46,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:45:46,304 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:45:46,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46 WrapperNode [2021-11-06 17:45:46,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:45:46,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:45:46,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:45:46,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:45:46,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:46,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:47,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:45:47,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:45:47,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:45:47,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:45:47,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:47,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:47,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:47,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:48,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:48,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:48,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:48,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:45:48,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:45:48,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:45:48,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:45:48,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (1/1) ... [2021-11-06 17:45:48,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:45:48,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:45:48,422 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) [2021-11-06 17:45:48,423 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 [2021-11-06 17:45:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure ips_done [2021-11-06 17:45:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_done [2021-11-06 17:45:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:45:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:45:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_cmd [2021-11-06 17:45:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_cmd [2021-11-06 17:45:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_copperhead [2021-11-06 17:45:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_copperhead [2021-11-06 17:45:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure ips_hainit [2021-11-06 17:45:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_hainit [2021-11-06 17:45:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure ips_wait [2021-11-06 17:45:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_wait [2021-11-06 17:45:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure ips_readwrite_page5 [2021-11-06 17:45:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_readwrite_page5 [2021-11-06 17:45:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flush_and_reset [2021-11-06 17:45:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flush_and_reset [2021-11-06 17:45:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_wait [2021-11-06 17:45:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_wait [2021-11-06 17:45:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_morpheus [2021-11-06 17:45:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_morpheus [2021-11-06 17:45:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:45:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue_lck [2021-11-06 17:45:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue_lck [2021-11-06 17:45:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:45:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:45:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:45:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure ips_release [2021-11-06 17:45:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_release [2021-11-06 17:45:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-06 17:45:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isinit_morpheus [2021-11-06 17:45:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isinit_morpheus [2021-11-06 17:45:48,467 INFO L130 BoogieDeclarations]: Found specification of procedure ips_next [2021-11-06 17:45:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_next [2021-11-06 17:45:48,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:45:48,467 INFO L130 BoogieDeclarations]: Found specification of procedure ips_clear_adapter [2021-11-06 17:45:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_clear_adapter [2021-11-06 17:45:48,467 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_bios [2021-11-06 17:45:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_bios [2021-11-06 17:45:48,467 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_subsystem_parameters [2021-11-06 17:45:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_subsystem_parameters [2021-11-06 17:45:48,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:45:48,468 INFO L130 BoogieDeclarations]: Found specification of procedure ips_write_driver_status [2021-11-06 17:45:48,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_write_driver_status [2021-11-06 17:45:48,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:45:48,468 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase2 [2021-11-06 17:45:48,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase2 [2021-11-06 17:45:48,468 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_adapter_status [2021-11-06 17:45:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_adapter_status [2021-11-06 17:45:48,469 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase1 [2021-11-06 17:45:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase1 [2021-11-06 17:45:48,469 INFO L130 BoogieDeclarations]: Found specification of procedure ipsintr_done [2021-11-06 17:45:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ipsintr_done [2021-11-06 17:45:48,469 INFO L130 BoogieDeclarations]: Found specification of procedure ips_insert_device [2021-11-06 17:45:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_insert_device [2021-11-06 17:45:48,469 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_config [2021-11-06 17:45:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_config [2021-11-06 17:45:48,470 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_reset [2021-11-06 17:45:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_reset [2021-11-06 17:45:48,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:45:48,470 INFO L130 BoogieDeclarations]: Found specification of procedure ips_make_passthru [2021-11-06 17:45:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_make_passthru [2021-11-06 17:45:48,471 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead_memio [2021-11-06 17:45:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead_memio [2021-11-06 17:45:48,472 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_reset [2021-11-06 17:45:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_reset [2021-11-06 17:45:48,472 INFO L130 BoogieDeclarations]: Found specification of procedure __ips_eh_reset [2021-11-06 17:45:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __ips_eh_reset [2021-11-06 17:45:48,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:45:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:45:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 17:45:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:45:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:45:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 17:45:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 17:45:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ips_remove_device [2021-11-06 17:45:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_remove_device [2021-11-06 17:45:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue [2021-11-06 17:45:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue [2021-11-06 17:45:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_morpheus [2021-11-06 17:45:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_morpheus [2021-11-06 17:45:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_time [2021-11-06 17:45:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_time [2021-11-06 17:45:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ips_get_bios_version [2021-11-06 17:45:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_get_bios_version [2021-11-06 17:45:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead [2021-11-06 17:45:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead [2021-11-06 17:45:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 17:45:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 17:45:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_copperhead [2021-11-06 17:45:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_copperhead [2021-11-06 17:45:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:45:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 17:45:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 17:45:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 17:45:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:45:48,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:53:23,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:53:23,319 INFO L299 CfgBuilder]: Removed 6298 assume(true) statements. [2021-11-06 17:53:23,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:53:23 BoogieIcfgContainer [2021-11-06 17:53:23,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:53:23,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:53:23,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:53:23,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:53:23,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:45:43" (1/3) ... [2021-11-06 17:53:23,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1855c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:53:23, skipping insertion in model container [2021-11-06 17:53:23,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:45:46" (2/3) ... [2021-11-06 17:53:23,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1855c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:53:23, skipping insertion in model container [2021-11-06 17:53:23,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:53:23" (3/3) ... [2021-11-06 17:53:23,331 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2021-11-06 17:53:23,335 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:53:23,335 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-06 17:53:23,383 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:53:23,387 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 [2021-11-06 17:53:23,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-06 17:53:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 8778 states, 8605 states have (on average 1.47472399767577) internal successors, (12690), 8616 states have internal predecessors, (12690), 128 states have call successors, (128), 39 states have call predecessors, (128), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2021-11-06 17:53:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-06 17:53:23,509 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:53:23,510 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:53:23,511 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-06 17:53:23,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:53:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1609733912, now seen corresponding path program 1 times [2021-11-06 17:53:23,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:53:23,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317844667] [2021-11-06 17:53:23,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:53:23,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:53:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:53:24,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:53:24,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:53:24,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317844667] [2021-11-06 17:53:24,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317844667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:53:24,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:53:24,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:53:24,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931139462] [2021-11-06 17:53:24,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:53:24,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:53:24,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:53:24,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:53:24,305 INFO L87 Difference]: Start difference. First operand has 8778 states, 8605 states have (on average 1.47472399767577) internal successors, (12690), 8616 states have internal predecessors, (12690), 128 states have call successors, (128), 39 states have call predecessors, (128), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:24,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:53:24,569 INFO L93 Difference]: Finished difference Result 17528 states and 25983 transitions. [2021-11-06 17:53:24,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:53:24,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-06 17:53:24,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:53:24,623 INFO L225 Difference]: With dead ends: 17528 [2021-11-06 17:53:24,623 INFO L226 Difference]: Without dead ends: 8466 [2021-11-06 17:53:24,693 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:53:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8466 states. [2021-11-06 17:53:24,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8466 to 8466. [2021-11-06 17:53:24,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8466 states, 8294 states have (on average 1.4475524475524475) internal successors, (12006), 8304 states have internal predecessors, (12006), 128 states have call successors, (128), 39 states have call predecessors, (128), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2021-11-06 17:53:24,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8466 states to 8466 states and 12262 transitions. [2021-11-06 17:53:24,954 INFO L78 Accepts]: Start accepts. Automaton has 8466 states and 12262 transitions. Word has length 64 [2021-11-06 17:53:24,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:53:24,955 INFO L470 AbstractCegarLoop]: Abstraction has 8466 states and 12262 transitions. [2021-11-06 17:53:24,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:24,956 INFO L276 IsEmpty]: Start isEmpty. Operand 8466 states and 12262 transitions. [2021-11-06 17:53:24,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-06 17:53:24,961 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:53:24,961 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:53:24,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:53:24,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-06 17:53:24,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:53:24,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1609001254, now seen corresponding path program 1 times [2021-11-06 17:53:24,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:53:24,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688684631] [2021-11-06 17:53:24,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:53:24,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:53:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:53:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:53:25,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:53:25,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688684631] [2021-11-06 17:53:25,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688684631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:53:25,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:53:25,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:53:25,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327894483] [2021-11-06 17:53:25,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:53:25,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:53:25,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:53:25,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:25,423 INFO L87 Difference]: Start difference. First operand 8466 states and 12262 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:25,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:53:25,874 INFO L93 Difference]: Finished difference Result 25059 states and 36338 transitions. [2021-11-06 17:53:25,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:53:25,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-06 17:53:25,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:53:25,963 INFO L225 Difference]: With dead ends: 25059 [2021-11-06 17:53:25,963 INFO L226 Difference]: Without dead ends: 16637 [2021-11-06 17:53:25,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16637 states. [2021-11-06 17:53:26,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16637 to 16626. [2021-11-06 17:53:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16626 states, 16289 states have (on average 1.4493216280925778) internal successors, (23608), 16305 states have internal predecessors, (23608), 254 states have call successors, (254), 78 states have call predecessors, (254), 78 states have return successors, (254), 254 states have call predecessors, (254), 254 states have call successors, (254) [2021-11-06 17:53:26,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16626 states to 16626 states and 24116 transitions. [2021-11-06 17:53:26,355 INFO L78 Accepts]: Start accepts. Automaton has 16626 states and 24116 transitions. Word has length 64 [2021-11-06 17:53:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:53:26,355 INFO L470 AbstractCegarLoop]: Abstraction has 16626 states and 24116 transitions. [2021-11-06 17:53:26,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 16626 states and 24116 transitions. [2021-11-06 17:53:26,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-06 17:53:26,366 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:53:26,366 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:53:26,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:53:26,367 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-06 17:53:26,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:53:26,373 INFO L85 PathProgramCache]: Analyzing trace with hash 81393114, now seen corresponding path program 1 times [2021-11-06 17:53:26,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:53:26,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169468041] [2021-11-06 17:53:26,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:53:26,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:53:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:53:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:53:26,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:53:26,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169468041] [2021-11-06 17:53:26,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169468041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:53:26,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:53:26,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:53:26,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431627488] [2021-11-06 17:53:26,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:53:26,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:53:26,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:53:26,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:26,691 INFO L87 Difference]: Start difference. First operand 16626 states and 24116 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:27,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:53:27,310 INFO L93 Difference]: Finished difference Result 48632 states and 71092 transitions. [2021-11-06 17:53:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:53:27,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-06 17:53:27,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:53:27,436 INFO L225 Difference]: With dead ends: 48632 [2021-11-06 17:53:27,437 INFO L226 Difference]: Without dead ends: 32050 [2021-11-06 17:53:27,504 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32050 states. [2021-11-06 17:53:28,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32050 to 31989. [2021-11-06 17:53:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31989 states, 31343 states have (on average 1.4511693201033724) internal successors, (45484), 31366 states have internal predecessors, (45484), 485 states have call successors, (485), 152 states have call predecessors, (485), 156 states have return successors, (970), 494 states have call predecessors, (970), 485 states have call successors, (970) [2021-11-06 17:53:28,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31989 states to 31989 states and 46939 transitions. [2021-11-06 17:53:28,175 INFO L78 Accepts]: Start accepts. Automaton has 31989 states and 46939 transitions. Word has length 81 [2021-11-06 17:53:28,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:53:28,176 INFO L470 AbstractCegarLoop]: Abstraction has 31989 states and 46939 transitions. [2021-11-06 17:53:28,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:28,176 INFO L276 IsEmpty]: Start isEmpty. Operand 31989 states and 46939 transitions. [2021-11-06 17:53:28,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-06 17:53:28,184 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:53:28,184 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:53:28,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:53:28,184 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-06 17:53:28,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:53:28,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1365929328, now seen corresponding path program 1 times [2021-11-06 17:53:28,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:53:28,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742392747] [2021-11-06 17:53:28,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:53:28,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:53:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:53:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:53:28,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:53:28,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742392747] [2021-11-06 17:53:28,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742392747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:53:28,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:53:28,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 17:53:28,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534504313] [2021-11-06 17:53:28,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:53:28,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:53:28,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:53:28,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:53:28,542 INFO L87 Difference]: Start difference. First operand 31989 states and 46939 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:31,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:53:31,540 INFO L93 Difference]: Finished difference Result 63940 states and 93839 transitions. [2021-11-06 17:53:31,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 17:53:31,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-06 17:53:31,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:53:31,667 INFO L225 Difference]: With dead ends: 63940 [2021-11-06 17:53:31,667 INFO L226 Difference]: Without dead ends: 31979 [2021-11-06 17:53:31,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:53:31,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31979 states. [2021-11-06 17:53:32,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31979 to 31979. [2021-11-06 17:53:32,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31979 states, 31333 states have (on average 1.4511218204448983) internal successors, (45468), 31356 states have internal predecessors, (45468), 485 states have call successors, (485), 152 states have call predecessors, (485), 156 states have return successors, (970), 494 states have call predecessors, (970), 485 states have call successors, (970) [2021-11-06 17:53:32,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31979 states to 31979 states and 46923 transitions. [2021-11-06 17:53:32,478 INFO L78 Accepts]: Start accepts. Automaton has 31979 states and 46923 transitions. Word has length 83 [2021-11-06 17:53:32,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:53:32,479 INFO L470 AbstractCegarLoop]: Abstraction has 31979 states and 46923 transitions. [2021-11-06 17:53:32,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 31979 states and 46923 transitions. [2021-11-06 17:53:32,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-06 17:53:32,491 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:53:32,491 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:53:32,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:53:32,492 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-06 17:53:32,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:53:32,492 INFO L85 PathProgramCache]: Analyzing trace with hash 849014434, now seen corresponding path program 1 times [2021-11-06 17:53:32,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:53:32,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062797596] [2021-11-06 17:53:32,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:53:32,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:53:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:53:32,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:53:32,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:53:32,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062797596] [2021-11-06 17:53:32,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062797596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:53:32,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:53:32,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:53:32,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680762967] [2021-11-06 17:53:32,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:53:32,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:53:32,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:53:32,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:32,804 INFO L87 Difference]: Start difference. First operand 31979 states and 46923 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:53:33,759 INFO L93 Difference]: Finished difference Result 95769 states and 140547 transitions. [2021-11-06 17:53:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:53:33,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-06 17:53:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:53:34,021 INFO L225 Difference]: With dead ends: 95769 [2021-11-06 17:53:34,021 INFO L226 Difference]: Without dead ends: 63834 [2021-11-06 17:53:34,186 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:34,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63834 states. [2021-11-06 17:53:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63834 to 63824. [2021-11-06 17:53:35,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63824 states, 62541 states have (on average 1.4512719655905726) internal successors, (90764), 62583 states have internal predecessors, (90764), 966 states have call successors, (966), 304 states have call predecessors, (966), 312 states have return successors, (1932), 984 states have call predecessors, (1932), 966 states have call successors, (1932) [2021-11-06 17:53:35,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63824 states to 63824 states and 93662 transitions. [2021-11-06 17:53:35,547 INFO L78 Accepts]: Start accepts. Automaton has 63824 states and 93662 transitions. Word has length 92 [2021-11-06 17:53:35,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:53:35,547 INFO L470 AbstractCegarLoop]: Abstraction has 63824 states and 93662 transitions. [2021-11-06 17:53:35,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 63824 states and 93662 transitions. [2021-11-06 17:53:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-06 17:53:35,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:53:35,564 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:53:35,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 17:53:35,564 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-06 17:53:35,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:53:35,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1943028586, now seen corresponding path program 1 times [2021-11-06 17:53:35,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:53:35,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692065944] [2021-11-06 17:53:35,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:53:35,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:53:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:53:35,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 17:53:35,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:53:35,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692065944] [2021-11-06 17:53:35,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692065944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:53:35,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:53:35,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:53:35,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747458243] [2021-11-06 17:53:35,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:53:35,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:53:35,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:53:35,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:35,939 INFO L87 Difference]: Start difference. First operand 63824 states and 93662 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:53:37,705 INFO L93 Difference]: Finished difference Result 132228 states and 195501 transitions. [2021-11-06 17:53:37,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:53:37,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-06 17:53:37,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:53:38,021 INFO L225 Difference]: With dead ends: 132228 [2021-11-06 17:53:38,021 INFO L226 Difference]: Without dead ends: 68448 [2021-11-06 17:53:38,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:38,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68448 states. [2021-11-06 17:53:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68448 to 63840. [2021-11-06 17:53:39,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63840 states, 62557 states have (on average 1.4511565452307496) internal successors, (90780), 62599 states have internal predecessors, (90780), 966 states have call successors, (966), 304 states have call predecessors, (966), 312 states have return successors, (1932), 984 states have call predecessors, (1932), 966 states have call successors, (1932) [2021-11-06 17:53:40,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63840 states to 63840 states and 93678 transitions. [2021-11-06 17:53:40,239 INFO L78 Accepts]: Start accepts. Automaton has 63840 states and 93678 transitions. Word has length 92 [2021-11-06 17:53:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:53:40,240 INFO L470 AbstractCegarLoop]: Abstraction has 63840 states and 93678 transitions. [2021-11-06 17:53:40,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 63840 states and 93678 transitions. [2021-11-06 17:53:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-06 17:53:40,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:53:40,273 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:53:40,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 17:53:40,273 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-06 17:53:40,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:53:40,274 INFO L85 PathProgramCache]: Analyzing trace with hash 309060204, now seen corresponding path program 1 times [2021-11-06 17:53:40,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:53:40,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318761088] [2021-11-06 17:53:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:53:40,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:53:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:53:40,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 17:53:40,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:53:40,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318761088] [2021-11-06 17:53:40,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318761088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:53:40,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:53:40,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:53:40,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350117655] [2021-11-06 17:53:40,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:53:40,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:53:40,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:53:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:40,679 INFO L87 Difference]: Start difference. First operand 63840 states and 93678 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:42,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:53:42,791 INFO L93 Difference]: Finished difference Result 123146 states and 182280 transitions. [2021-11-06 17:53:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:53:42,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-06 17:53:42,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:53:43,396 INFO L225 Difference]: With dead ends: 123146 [2021-11-06 17:53:43,396 INFO L226 Difference]: Without dead ends: 123138 [2021-11-06 17:53:43,446 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:53:43,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123138 states. [2021-11-06 17:53:45,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123138 to 122938. [2021-11-06 17:53:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122938 states, 120641 states have (on average 1.4508168864648006) internal successors, (175028), 120657 states have internal predecessors, (175028), 1692 states have call successors, (1692), 576 states have call predecessors, (1692), 600 states have return successors, (5252), 1800 states have call predecessors, (5252), 1692 states have call successors, (5252) [2021-11-06 17:53:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122938 states to 122938 states and 181972 transitions. [2021-11-06 17:53:46,571 INFO L78 Accepts]: Start accepts. Automaton has 122938 states and 181972 transitions. Word has length 96 [2021-11-06 17:53:46,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:53:46,571 INFO L470 AbstractCegarLoop]: Abstraction has 122938 states and 181972 transitions. [2021-11-06 17:53:46,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:46,571 INFO L276 IsEmpty]: Start isEmpty. Operand 122938 states and 181972 transitions. [2021-11-06 17:53:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 17:53:46,839 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:53:46,839 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:53:46,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 17:53:46,839 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-06 17:53:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:53:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1830442181, now seen corresponding path program 1 times [2021-11-06 17:53:46,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:53:46,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316897432] [2021-11-06 17:53:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:53:46,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:53:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:53:47,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:53:47,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:53:47,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316897432] [2021-11-06 17:53:47,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316897432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:53:47,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:53:47,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:53:47,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475940179] [2021-11-06 17:53:47,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:53:47,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:53:47,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:53:47,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:53:47,189 INFO L87 Difference]: Start difference. First operand 122938 states and 181972 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:53:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:53:55,564 INFO L93 Difference]: Finished difference Result 383710 states and 591366 transitions. [2021-11-06 17:53:55,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:53:55,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-06 17:53:55,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:53:57,061 INFO L225 Difference]: With dead ends: 383710 [2021-11-06 17:53:57,062 INFO L226 Difference]: Without dead ends: 260816