./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 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-wip.dd.seqcomp-4d01470 [2021-11-02 22:47:42,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:47:42,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:47:42,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:47:42,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:47:42,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:47:42,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:47:42,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:47:42,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:47:42,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:47:42,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:47:42,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:47:42,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:47:42,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:47:42,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:47:42,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:47:42,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:47:42,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:47:42,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:47:42,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:47:42,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:47:42,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:47:42,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:47:42,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:47:42,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:47:42,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:47:42,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:47:42,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:47:42,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:47:42,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:47:42,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:47:42,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:47:42,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:47:42,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:47:42,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:47:42,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:47:42,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:47:42,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:47:42,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:47:42,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:47:42,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:47:42,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 22:47:42,922 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:47:42,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:47:42,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:47:42,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:47:42,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:47:42,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:47:42,924 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:47:42,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:47:42,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:47:42,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:47:42,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:47:42,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:47:42,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:47:42,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:47:42,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:47:42,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:47:42,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:47:42,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:47:42,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:47:42,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:47:42,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:47:42,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:47:42,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:47:42,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:47:42,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:47:42,927 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:47:42,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:47:42,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:47:42,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:47:42,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a [2021-11-02 22:47:43,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:47:43,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:47:43,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:47:43,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:47:43,146 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:47:43,151 INFO L432 ainManager$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 [2021-11-02 22:47:43,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a780b6883/4deed9f011ca4cb19bcdcfa33f2304b3/FLAGffc5d9948 [2021-11-02 22:47:43,895 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:47:43,896 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 [2021-11-02 22:47:43,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a780b6883/4deed9f011ca4cb19bcdcfa33f2304b3/FLAGffc5d9948 [2021-11-02 22:47:44,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a780b6883/4deed9f011ca4cb19bcdcfa33f2304b3 [2021-11-02 22:47:44,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:47:44,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:47:44,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:47:44,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:47:44,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:47:44,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:47:44" (1/1) ... [2021-11-02 22:47:44,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b38ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:44, skipping insertion in model container [2021-11-02 22:47:44,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:47:44" (1/1) ... [2021-11-02 22:47:44,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:47:44,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:47:46,244 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] [2021-11-02 22:47:46,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:47:46,349 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:47:46,871 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] [2021-11-02 22:47:46,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:47:46,956 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:47:46,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46 WrapperNode [2021-11-02 22:47:46,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:47:46,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:47:46,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:47:46,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:47:46,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:47,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:47,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:47:47,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:47:47,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:47:47,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:47:47,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:47,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:48,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:48,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:48,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:48,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:49,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:49,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:47:49,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:47:49,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:47:49,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:47:49,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (1/1) ... [2021-11-02 22:47:49,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:47:49,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 22:47:49,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:47:49,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:47:49,265 INFO L130 BoogieDeclarations]: Found specification of procedure ips_done [2021-11-02 22:47:49,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_done [2021-11-02 22:47:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 22:47:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 22:47:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_cmd [2021-11-02 22:47:49,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_cmd [2021-11-02 22:47:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_copperhead [2021-11-02 22:47:49,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_copperhead [2021-11-02 22:47:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure ips_hainit [2021-11-02 22:47:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_hainit [2021-11-02 22:47:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ips_wait [2021-11-02 22:47:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_wait [2021-11-02 22:47:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ips_readwrite_page5 [2021-11-02 22:47:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_readwrite_page5 [2021-11-02 22:47:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flush_and_reset [2021-11-02 22:47:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flush_and_reset [2021-11-02 22:47:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_wait [2021-11-02 22:47:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_wait [2021-11-02 22:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_morpheus [2021-11-02 22:47:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_morpheus [2021-11-02 22:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue_lck [2021-11-02 22:47:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue_lck [2021-11-02 22:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure ips_release [2021-11-02 22:47:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_release [2021-11-02 22:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-02 22:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isinit_morpheus [2021-11-02 22:47:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isinit_morpheus [2021-11-02 22:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure ips_next [2021-11-02 22:47:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_next [2021-11-02 22:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 22:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure ips_clear_adapter [2021-11-02 22:47:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_clear_adapter [2021-11-02 22:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_bios [2021-11-02 22:47:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_bios [2021-11-02 22:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_subsystem_parameters [2021-11-02 22:47:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_subsystem_parameters [2021-11-02 22:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 22:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ips_write_driver_status [2021-11-02 22:47:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_write_driver_status [2021-11-02 22:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase2 [2021-11-02 22:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase2 [2021-11-02 22:47:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_adapter_status [2021-11-02 22:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_adapter_status [2021-11-02 22:47:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase1 [2021-11-02 22:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase1 [2021-11-02 22:47:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure ipsintr_done [2021-11-02 22:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ipsintr_done [2021-11-02 22:47:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure ips_insert_device [2021-11-02 22:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_insert_device [2021-11-02 22:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_config [2021-11-02 22:47:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_config [2021-11-02 22:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_reset [2021-11-02 22:47:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_reset [2021-11-02 22:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure ips_make_passthru [2021-11-02 22:47:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_make_passthru [2021-11-02 22:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead_memio [2021-11-02 22:47:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead_memio [2021-11-02 22:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_reset [2021-11-02 22:47:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_reset [2021-11-02 22:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure __ips_eh_reset [2021-11-02 22:47:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __ips_eh_reset [2021-11-02 22:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 22:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 22:47:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 22:47:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-02 22:47:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-02 22:47:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ips_remove_device [2021-11-02 22:47:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_remove_device [2021-11-02 22:47:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue [2021-11-02 22:47:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue [2021-11-02 22:47:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_morpheus [2021-11-02 22:47:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_morpheus [2021-11-02 22:47:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_time [2021-11-02 22:47:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_time [2021-11-02 22:47:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure ips_get_bios_version [2021-11-02 22:47:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_get_bios_version [2021-11-02 22:47:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead [2021-11-02 22:47:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead [2021-11-02 22:47:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-02 22:47:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-02 22:47:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_copperhead [2021-11-02 22:47:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_copperhead [2021-11-02 22:47:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:47:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 22:47:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 22:47:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-02 22:47:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:47:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:54:59,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:54:59,665 INFO L299 CfgBuilder]: Removed 6298 assume(true) statements. [2021-11-02 22:54:59,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:54:59 BoogieIcfgContainer [2021-11-02 22:54:59,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:54:59,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:54:59,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:54:59,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:54:59,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:47:44" (1/3) ... [2021-11-02 22:54:59,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33adcec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:54:59, skipping insertion in model container [2021-11-02 22:54:59,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:46" (2/3) ... [2021-11-02 22:54:59,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33adcec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:54:59, skipping insertion in model container [2021-11-02 22:54:59,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:54:59" (3/3) ... [2021-11-02 22:54:59,684 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2021-11-02 22:54:59,688 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:54:59,689 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-02 22:54:59,756 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:54:59,762 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:54:59,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-02 22:54:59,869 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) [2021-11-02 22:54:59,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-02 22:54:59,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:54:59,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:54:59,889 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)] === [2021-11-02 22:54:59,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:54:59,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1609733912, now seen corresponding path program 1 times [2021-11-02 22:54:59,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:54:59,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727784386] [2021-11-02 22:54:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:54:59,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:55:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:55:00,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:55:00,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:55:00,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727784386] [2021-11-02 22:55:00,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727784386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:55:00,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:55:00,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:55:00,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285769133] [2021-11-02 22:55:00,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:55:00,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:55:00,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:55:00,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:55:00,736 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) [2021-11-02 22:55:02,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:06,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:09,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:10,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:18,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:25,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:30,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:34,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:41,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:44,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:55:46,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:56:06,572 INFO L93 Difference]: Finished difference Result 17528 states and 25983 transitions. [2021-11-02 22:56:06,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:56:06,575 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 [2021-11-02 22:56:06,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:56:06,658 INFO L225 Difference]: With dead ends: 17528 [2021-11-02 22:56:06,659 INFO L226 Difference]: Without dead ends: 8466 [2021-11-02 22:56:06,882 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 [2021-11-02 22:56:06,887 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12288 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60990.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 12295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 65.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12288 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64637.95ms IncrementalHoareTripleChecker+Time [2021-11-02 22:56:06,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 536 Invalid, 12295 Unknown, 0 Unchecked, 65.43ms Time], IncrementalHoareTripleChecker [0 Valid, 12288 Invalid, 7 Unknown, 0 Unchecked, 64637.95ms Time] [2021-11-02 22:56:06,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8466 states. [2021-11-02 22:56:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8466 to 8466. [2021-11-02 22:56:07,157 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) [2021-11-02 22:56:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8466 states to 8466 states and 12262 transitions. [2021-11-02 22:56:07,210 INFO L78 Accepts]: Start accepts. Automaton has 8466 states and 12262 transitions. Word has length 64 [2021-11-02 22:56:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:56:07,211 INFO L470 AbstractCegarLoop]: Abstraction has 8466 states and 12262 transitions. [2021-11-02 22:56:07,212 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) [2021-11-02 22:56:07,212 INFO L276 IsEmpty]: Start isEmpty. Operand 8466 states and 12262 transitions. [2021-11-02 22:56:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-02 22:56:07,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:56:07,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:56:07,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:56:07,219 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)] === [2021-11-02 22:56:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:56:07,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1609001254, now seen corresponding path program 1 times [2021-11-02 22:56:07,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:56:07,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21224666] [2021-11-02 22:56:07,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:56:07,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:56:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:56:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:56:07,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:56:07,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21224666] [2021-11-02 22:56:07,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21224666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:56:07,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:56:07,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:56:07,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578920973] [2021-11-02 22:56:07,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:56:07,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:56:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:56:07,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:56:07,749 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) [2021-11-02 22:56:10,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:14,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:16,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:19,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:21,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:22,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:27,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:34,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:39,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:46,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:50,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:55,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:56:58,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:57:00,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:57:14,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:57:17,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:57:59,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:59,783 INFO L93 Difference]: Finished difference Result 16898 states and 24491 transitions. [2021-11-02 22:57:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:57:59,784 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 [2021-11-02 22:57:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:59,827 INFO L225 Difference]: With dead ends: 16898 [2021-11-02 22:57:59,828 INFO L226 Difference]: Without dead ends: 8468 [2021-11-02 22:57:59,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:57:59,855 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 0 mSDsluCounter, 12235 mSDsCounter, 0 mSdLazyCounter, 23997 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104156.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 24006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 165.13ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23997 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110820.69ms IncrementalHoareTripleChecker+Time [2021-11-02 22:57:59,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 24006 Unknown, 0 Unchecked, 165.13ms Time], IncrementalHoareTripleChecker [2 Valid, 23997 Invalid, 7 Unknown, 0 Unchecked, 110820.69ms Time] [2021-11-02 22:57:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8468 states. [2021-11-02 22:58:00,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8468 to 8468. [2021-11-02 22:58:00,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8468 states, 8296 states have (on average 1.4474445515911283) internal successors, (12008), 8306 states have internal predecessors, (12008), 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) [2021-11-02 22:58:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8468 states to 8468 states and 12264 transitions. [2021-11-02 22:58:00,053 INFO L78 Accepts]: Start accepts. Automaton has 8468 states and 12264 transitions. Word has length 64 [2021-11-02 22:58:00,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:00,054 INFO L470 AbstractCegarLoop]: Abstraction has 8468 states and 12264 transitions. [2021-11-02 22:58:00,054 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) [2021-11-02 22:58:00,054 INFO L276 IsEmpty]: Start isEmpty. Operand 8468 states and 12264 transitions. [2021-11-02 22:58:00,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-02 22:58:00,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:58:00,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:00,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:58:00,056 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ips_queue_lckErr0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err0ASSERT_VIOLATIONERROR_FUNCTION, ips_init_phase1Err1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 22:58:00,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:00,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1818324216, now seen corresponding path program 1 times [2021-11-02 22:58:00,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:00,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913939753] [2021-11-02 22:58:00,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:00,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:58:00,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:00,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913939753] [2021-11-02 22:58:00,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913939753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:00,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:00,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:58:00,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163132399] [2021-11-02 22:58:00,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:58:00,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:00,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:58:00,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:58:00,429 INFO L87 Difference]: Start difference. First operand 8468 states and 12264 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-02 22:58:02,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:07,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:10,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:12,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:14,151 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:26,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:34,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:35,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:37,894 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:39,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:58:46,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:59:02,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:59:05,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:59:49,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:49,057 INFO L93 Difference]: Finished difference Result 16893 states and 24483 transitions. [2021-11-02 22:59:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:49,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 66 [2021-11-02 22:59:49,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:49,092 INFO L225 Difference]: With dead ends: 16893 [2021-11-02 22:59:49,093 INFO L226 Difference]: Without dead ends: 8469 [2021-11-02 22:59:49,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:49,117 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 0 mSDsluCounter, 12235 mSDsCounter, 0 mSdLazyCounter, 23999 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100563.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 24005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 124.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23999 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107616.62ms IncrementalHoareTripleChecker+Time [2021-11-02 22:59:49,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 24005 Unknown, 0 Unchecked, 124.47ms Time], IncrementalHoareTripleChecker [0 Valid, 23999 Invalid, 6 Unknown, 0 Unchecked, 107616.62ms Time] [2021-11-02 22:59:49,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8469 states. [2021-11-02 22:59:49,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8469 to 8469. [2021-11-02 22:59:49,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8469 states, 8297 states have (on average 1.4473906231167892) internal successors, (12009), 8307 states have internal predecessors, (12009), 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) [2021-11-02 22:59:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8469 states to 8469 states and 12265 transitions. [2021-11-02 22:59:49,268 INFO L78 Accepts]: Start accepts. Automaton has 8469 states and 12265 transitions. Word has length 66 [2021-11-02 22:59:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:49,270 INFO L470 AbstractCegarLoop]: Abstraction has 8469 states and 12265 transitions. [2021-11-02 22:59:49,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-02 22:59:49,271 INFO L276 IsEmpty]: Start isEmpty. Operand 8469 states and 12265 transitions. [2021-11-02 22:59:49,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-02 22:59:49,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 22:59:49,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:49,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:59:49,274 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)] === [2021-11-02 22:59:49,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash -579385213, now seen corresponding path program 1 times [2021-11-02 22:59:49,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:49,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041239794] [2021-11-02 22:59:49,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:49,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 22:59:49,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:49,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041239794] [2021-11-02 22:59:49,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041239794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:49,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:49,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:59:49,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982369506] [2021-11-02 22:59:49,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:49,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:49,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:49,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:49,622 INFO L87 Difference]: Start difference. First operand 8469 states and 12265 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-11-02 22:59:51,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:59:54,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 22:59:57,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:00,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:08,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:11,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:14,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:21,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:26,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:28,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:31,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:36,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:42,151 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:47,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:00:58,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:01:05,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:01:14,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:01:20,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:01:27,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:01:30,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15