./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-3.0/module_get_put-drivers-block-pktcdvd.ko.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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:24:22,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:24:22,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:24:22,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:24:22,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:24:22,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:24:22,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:24:22,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:24:22,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:24:22,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:24:22,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:24:22,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:24:22,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:24:22,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:24:22,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:24:22,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:24:22,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:24:22,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:24:22,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:24:22,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:24:22,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:24:22,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:24:22,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:24:22,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:24:22,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:24:22,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:24:22,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:24:22,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:24:22,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:24:22,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:24:22,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:24:22,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:24:22,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:24:22,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:24:22,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:24:22,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:24:22,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:24:22,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:24:22,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:24:22,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:24:22,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:24:22,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:24:22,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:24:22,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:24:22,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:24:22,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:24:22,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:24:22,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:24:22,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:24:22,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:24:22,186 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:24:22,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:24:22,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:24:22,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:24:22,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:24:22,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:24:22,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:24:22,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:24:22,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:24:22,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:24:22,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:24:22,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:24:22,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:24:22,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:24:22,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:24:22,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:24:22,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:24:22,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:24:22,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:24:22,189 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:24:22,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:24:22,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:24:22,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:24:22,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-12-16 03:24:22,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:24:22,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:24:22,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:24:22,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:24:22,400 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:24:22,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-12-16 03:24:22,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27477bc6/50b01a7e2428402593ee3f803e52f050/FLAG886684096 [2021-12-16 03:24:23,040 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:24:23,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-12-16 03:24:23,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27477bc6/50b01a7e2428402593ee3f803e52f050/FLAG886684096 [2021-12-16 03:24:23,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27477bc6/50b01a7e2428402593ee3f803e52f050 [2021-12-16 03:24:23,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:24:23,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:24:23,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:24:23,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:24:23,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:24:23,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:24:23" (1/1) ... [2021-12-16 03:24:23,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a89550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:23, skipping insertion in model container [2021-12-16 03:24:23,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:24:23" (1/1) ... [2021-12-16 03:24:23,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:24:23,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:24:24,546 WARN L230 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-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-12-16 03:24:24,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:24:24,620 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:24:24,873 WARN L230 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-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-12-16 03:24:24,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:24:24,950 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:24:24,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24 WrapperNode [2021-12-16 03:24:24,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:24:24,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:24:24,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:24:24,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:24:24,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,146 INFO L137 Inliner]: procedures = 309, calls = 2428, calls flagged for inlining = 139, calls inlined = 90, statements flattened = 3931 [2021-12-16 03:24:25,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:24:25,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:24:25,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:24:25,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:24:25,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:24:25,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:24:25,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:24:25,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:24:25,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (1/1) ... [2021-12-16 03:24:25,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:24:25,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:24:25,290 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) [2021-12-16 03:24:25,310 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 [2021-12-16 03:24:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-16 03:24:25,321 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-16 03:24:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-16 03:24:25,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-16 03:24:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_ctl_ioctl [2021-12-16 03:24:25,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_ctl_ioctl [2021-12-16 03:24:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_release [2021-12-16 03:24:25,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_release [2021-12-16 03:24:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-16 03:24:25,322 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-16 03:24:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 03:24:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 03:24:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_disc_info [2021-12-16 03:24:25,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_disc_info [2021-12-16 03:24:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_bio_alloc [2021-12-16 03:24:25,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_bio_alloc [2021-12-16 03:24:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:24:25,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:24:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_setup_dev [2021-12-16 03:24:25,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_setup_dev [2021-12-16 03:24:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-16 03:24:25,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-16 03:24:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2021-12-16 03:24:25,323 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget [2021-12-16 03:24:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_set_speed [2021-12-16 03:24:25,324 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_set_speed [2021-12-16 03:24:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2021-12-16 03:24:25,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2021-12-16 03:24:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:24:25,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:24:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_shrink_pktlist [2021-12-16 03:24:25,324 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_shrink_pktlist [2021-12-16 03:24:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-16 03:24:25,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-16 03:24:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-12-16 03:24:25,325 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-12-16 03:24:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 03:24:25,325 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 03:24:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 03:24:25,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 03:24:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2021-12-16 03:24:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2021-12-16 03:24:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2021-12-16 03:24:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2021-12-16 03:24:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 03:24:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 03:24:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_select [2021-12-16 03:24:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_select [2021-12-16 03:24:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_remove [2021-12-16 03:24:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_remove [2021-12-16 03:24:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-16 03:24:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-16 03:24:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_debugfs_cleanup [2021-12-16 03:24:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_debugfs_cleanup [2021-12-16 03:24:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:24:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 03:24:25,328 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 03:24:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2021-12-16 03:24:25,329 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2021-12-16 03:24:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2021-12-16 03:24:25,330 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blocksize [2021-12-16 03:24:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_dump_sense [2021-12-16 03:24:25,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_dump_sense [2021-12-16 03:24:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2021-12-16 03:24:25,330 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2021-12-16 03:24:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-12-16 03:24:25,330 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-12-16 03:24:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:24:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-12-16 03:24:25,331 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-12-16 03:24:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_lock_door [2021-12-16 03:24:25,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_lock_door [2021-12-16 03:24:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2021-12-16 03:24:25,332 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get [2021-12-16 03:24:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_remove_dev [2021-12-16 03:24:25,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_remove_dev [2021-12-16 03:24:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-16 03:24:25,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-16 03:24:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-16 03:24:25,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-16 03:24:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:24:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2021-12-16 03:24:25,333 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2021-12-16 03:24:25,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:24:25,333 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 03:24:25,333 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 03:24:25,333 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-16 03:24:25,333 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-16 03:24:25,333 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-16 03:24:25,333 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-16 03:24:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-16 03:24:25,334 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-16 03:24:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 03:24:25,334 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 03:24:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:24:25,335 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:24:25,335 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-16 03:24:25,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-16 03:24:25,335 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-16 03:24:25,336 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-16 03:24:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 03:24:25,336 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 03:24:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_sysfs_cleanup [2021-12-16 03:24:25,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_sysfs_cleanup [2021-12-16 03:24:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-12-16 03:24:25,336 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-12-16 03:24:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_find_dev_from_minor [2021-12-16 03:24:25,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_find_dev_from_minor [2021-12-16 03:24:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 03:24:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 03:24:25,337 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 03:24:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 03:24:25,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 03:24:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-16 03:24:25,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-16 03:24:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure init_write_congestion_marks [2021-12-16 03:24:25,338 INFO L138 BoogieDeclarations]: Found implementation of procedure init_write_congestion_marks [2021-12-16 03:24:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-16 03:24:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-16 03:24:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 03:24:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_track_info [2021-12-16 03:24:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_track_info [2021-12-16 03:24:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:24:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-12-16 03:24:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-12-16 03:24:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 03:24:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 03:24:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2021-12-16 03:24:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2021-12-16 03:24:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 03:24:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 03:24:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_create [2021-12-16 03:24:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_create [2021-12-16 03:24:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:24:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:24:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-12-16 03:24:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-12-16 03:24:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:24:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:24:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-16 03:24:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-16 03:24:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:24:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2021-12-16 03:24:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2021-12-16 03:24:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:24:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-12-16 03:24:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-12-16 03:24:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2021-12-16 03:24:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2021-12-16 03:24:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2021-12-16 03:24:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2021-12-16 03:24:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure init_cdrom_command [2021-12-16 03:24:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure init_cdrom_command [2021-12-16 03:24:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-16 03:24:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-16 03:24:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_sense [2021-12-16 03:24:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_sense [2021-12-16 03:24:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-16 03:24:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-16 03:24:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_generic_packet [2021-12-16 03:24:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_generic_packet [2021-12-16 03:24:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 03:24:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 03:24:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 03:24:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 03:24:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2021-12-16 03:24:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2021-12-16 03:24:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_flush_cache [2021-12-16 03:24:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_flush_cache [2021-12-16 03:24:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:24:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:24:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:24:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-16 03:24:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-16 03:24:25,815 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:24:25,817 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:24:25,916 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:24:26,019 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-12-16 03:24:26,020 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-12-16 03:24:26,744 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:24:26,747 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:24:26,748 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:24:26,748 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:24:26,750 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:24:26,751 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:24:26,754 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 03:24:27,521 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##214: assume !false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume !false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##300: assume false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume !false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##392: assume false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume !false; [2021-12-16 03:24:27,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##152: assume false; [2021-12-16 03:24:27,545 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:24:27,556 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:24:27,559 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 03:24:27,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:24:27 BoogieIcfgContainer [2021-12-16 03:24:27,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:24:27,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:24:27,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:24:27,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:24:27,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:24:23" (1/3) ... [2021-12-16 03:24:27,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110ffb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:24:27, skipping insertion in model container [2021-12-16 03:24:27,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:24" (2/3) ... [2021-12-16 03:24:27,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110ffb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:24:27, skipping insertion in model container [2021-12-16 03:24:27,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:24:27" (3/3) ... [2021-12-16 03:24:27,570 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-12-16 03:24:27,574 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:24:27,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:24:27,616 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:24:27,620 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 [2021-12-16 03:24:27,620 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:24:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 1174 states, 836 states have (on average 1.3181818181818181) internal successors, (1102), 856 states have internal predecessors, (1102), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2021-12-16 03:24:27,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-16 03:24:27,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:27,651 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] [2021-12-16 03:24:27,651 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:27,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:27,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1329987391, now seen corresponding path program 1 times [2021-12-16 03:24:27,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:27,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735898512] [2021-12-16 03:24:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:27,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:24:28,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:28,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735898512] [2021-12-16 03:24:28,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735898512] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:28,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:24:28,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:24:28,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971709670] [2021-12-16 03:24:28,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:28,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:24:28,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:28,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:24:28,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:24:28,133 INFO L87 Difference]: Start difference. First operand has 1174 states, 836 states have (on average 1.3181818181818181) internal successors, (1102), 856 states have internal predecessors, (1102), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 03:24:30,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:30,041 INFO L93 Difference]: Finished difference Result 3663 states and 5242 transitions. [2021-12-16 03:24:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:24:30,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-12-16 03:24:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:30,062 INFO L225 Difference]: With dead ends: 3663 [2021-12-16 03:24:30,062 INFO L226 Difference]: Without dead ends: 2471 [2021-12-16 03:24:30,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:24:30,072 INFO L933 BasicCegarLoop]: 1866 mSDtfsCounter, 2064 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 4072 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:30,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2259 Valid, 4072 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [667 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-16 03:24:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2021-12-16 03:24:30,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2274. [2021-12-16 03:24:30,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1620 states have (on average 1.3092592592592593) internal successors, (2121), 1653 states have internal predecessors, (2121), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-16 03:24:30,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3116 transitions. [2021-12-16 03:24:30,243 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3116 transitions. Word has length 23 [2021-12-16 03:24:30,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:30,244 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3116 transitions. [2021-12-16 03:24:30,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 03:24:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3116 transitions. [2021-12-16 03:24:30,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-16 03:24:30,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:30,257 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:30,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:24:30,257 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:30,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:30,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1907254522, now seen corresponding path program 1 times [2021-12-16 03:24:30,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:30,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364536825] [2021-12-16 03:24:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:30,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 03:24:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-16 03:24:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 03:24:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:24:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 03:24:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 03:24:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 03:24:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 03:24:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:24:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:24:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 03:24:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 03:24:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 03:24:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:30,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-16 03:24:30,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:30,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364536825] [2021-12-16 03:24:30,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364536825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:30,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:24:30,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:24:30,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270555655] [2021-12-16 03:24:30,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:30,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:24:30,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:30,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:24:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:24:30,469 INFO L87 Difference]: Start difference. First operand 2274 states and 3116 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 03:24:33,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:24:33,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:33,914 INFO L93 Difference]: Finished difference Result 4693 states and 6491 transitions. [2021-12-16 03:24:33,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:24:33,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2021-12-16 03:24:33,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:33,926 INFO L225 Difference]: With dead ends: 4693 [2021-12-16 03:24:33,926 INFO L226 Difference]: Without dead ends: 2468 [2021-12-16 03:24:33,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:24:33,936 INFO L933 BasicCegarLoop]: 1571 mSDtfsCounter, 611 mSDsluCounter, 3501 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 592 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 5072 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:33,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 5072 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 916 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-12-16 03:24:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-12-16 03:24:34,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2274. [2021-12-16 03:24:34,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1620 states have (on average 1.308641975308642) internal successors, (2120), 1653 states have internal predecessors, (2120), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-16 03:24:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3115 transitions. [2021-12-16 03:24:34,023 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3115 transitions. Word has length 130 [2021-12-16 03:24:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:34,023 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3115 transitions. [2021-12-16 03:24:34,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 03:24:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3115 transitions. [2021-12-16 03:24:34,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-16 03:24:34,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:34,032 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:34,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:24:34,034 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:34,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:34,034 INFO L85 PathProgramCache]: Analyzing trace with hash -579514170, now seen corresponding path program 1 times [2021-12-16 03:24:34,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:34,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192688110] [2021-12-16 03:24:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:34,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 03:24:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 03:24:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 03:24:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 03:24:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 03:24:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 03:24:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 03:24:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:24:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 03:24:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 03:24:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 03:24:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 03:24:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 03:24:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 03:24:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:34,357 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 03:24:34,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:34,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192688110] [2021-12-16 03:24:34,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192688110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:34,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:24:34,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:24:34,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901178256] [2021-12-16 03:24:34,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:34,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:24:34,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:34,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:24:34,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:24:34,360 INFO L87 Difference]: Start difference. First operand 2274 states and 3115 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 03:24:37,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:24:37,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:37,717 INFO L93 Difference]: Finished difference Result 4795 states and 6646 transitions. [2021-12-16 03:24:37,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:24:37,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2021-12-16 03:24:37,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:37,729 INFO L225 Difference]: With dead ends: 4795 [2021-12-16 03:24:37,729 INFO L226 Difference]: Without dead ends: 2572 [2021-12-16 03:24:37,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:24:37,738 INFO L933 BasicCegarLoop]: 1610 mSDtfsCounter, 368 mSDsluCounter, 2976 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 313 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 4586 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:37,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 4586 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 981 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-12-16 03:24:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2021-12-16 03:24:37,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2284. [2021-12-16 03:24:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1630 states have (on average 1.30920245398773) internal successors, (2134), 1663 states have internal predecessors, (2134), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-16 03:24:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3129 transitions. [2021-12-16 03:24:37,807 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3129 transitions. Word has length 137 [2021-12-16 03:24:37,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:37,808 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3129 transitions. [2021-12-16 03:24:37,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 03:24:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3129 transitions. [2021-12-16 03:24:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-16 03:24:37,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:37,811 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:37,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:24:37,811 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:37,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:37,812 INFO L85 PathProgramCache]: Analyzing trace with hash -399599362, now seen corresponding path program 1 times [2021-12-16 03:24:37,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:37,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130562842] [2021-12-16 03:24:37,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:37,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:37,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 03:24:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:37,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-16 03:24:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:37,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 03:24:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:37,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 03:24:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 03:24:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 03:24:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:24:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 03:24:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 03:24:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 03:24:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 03:24:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:24:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 03:24:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 03:24:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 03:24:38,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:38,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130562842] [2021-12-16 03:24:38,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130562842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:38,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:24:38,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 03:24:38,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827013633] [2021-12-16 03:24:38,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:38,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 03:24:38,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:38,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 03:24:38,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:24:38,083 INFO L87 Difference]: Start difference. First operand 2284 states and 3129 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-16 03:24:41,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:24:43,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:24:43,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:43,782 INFO L93 Difference]: Finished difference Result 4715 states and 6521 transitions. [2021-12-16 03:24:43,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:24:43,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2021-12-16 03:24:43,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:43,793 INFO L225 Difference]: With dead ends: 4715 [2021-12-16 03:24:43,793 INFO L226 Difference]: Without dead ends: 2478 [2021-12-16 03:24:43,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-16 03:24:43,799 INFO L933 BasicCegarLoop]: 1575 mSDtfsCounter, 308 mSDsluCounter, 5634 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 282 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 7209 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:43,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 7209 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 1534 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2021-12-16 03:24:43,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2021-12-16 03:24:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2284. [2021-12-16 03:24:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1630 states have (on average 1.3085889570552147) internal successors, (2133), 1662 states have internal predecessors, (2133), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-16 03:24:43,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3128 transitions. [2021-12-16 03:24:43,853 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3128 transitions. Word has length 143 [2021-12-16 03:24:43,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:43,853 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3128 transitions. [2021-12-16 03:24:43,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-16 03:24:43,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3128 transitions. [2021-12-16 03:24:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-16 03:24:43,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:43,856 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:43,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:24:43,856 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:43,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:43,857 INFO L85 PathProgramCache]: Analyzing trace with hash -639749755, now seen corresponding path program 1 times [2021-12-16 03:24:43,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:43,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527657534] [2021-12-16 03:24:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:43,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:43,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:43,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 03:24:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 03:24:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-16 03:24:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 03:24:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 03:24:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 03:24:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 03:24:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 03:24:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:24:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 03:24:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-16 03:24:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 03:24:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:24:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-16 03:24:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-16 03:24:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 03:24:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:44,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 03:24:44,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:44,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527657534] [2021-12-16 03:24:44,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527657534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:44,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:24:44,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 03:24:44,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987450633] [2021-12-16 03:24:44,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:44,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 03:24:44,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:44,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 03:24:44,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-16 03:24:44,099 INFO L87 Difference]: Start difference. First operand 2284 states and 3128 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-16 03:24:45,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:45,746 INFO L93 Difference]: Finished difference Result 4749 states and 6565 transitions. [2021-12-16 03:24:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:24:45,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 173 [2021-12-16 03:24:45,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:45,762 INFO L225 Difference]: With dead ends: 4749 [2021-12-16 03:24:45,762 INFO L226 Difference]: Without dead ends: 2478 [2021-12-16 03:24:45,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-16 03:24:45,770 INFO L933 BasicCegarLoop]: 1576 mSDtfsCounter, 312 mSDsluCounter, 6990 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 8566 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:45,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 8566 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-16 03:24:45,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2021-12-16 03:24:45,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2284. [2021-12-16 03:24:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1630 states have (on average 1.3079754601226994) internal successors, (2132), 1662 states have internal predecessors, (2132), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-16 03:24:45,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3127 transitions. [2021-12-16 03:24:45,825 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3127 transitions. Word has length 173 [2021-12-16 03:24:45,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:45,825 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3127 transitions. [2021-12-16 03:24:45,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-16 03:24:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3127 transitions. [2021-12-16 03:24:45,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-16 03:24:45,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:45,828 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:45,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:24:45,828 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:45,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1466388562, now seen corresponding path program 1 times [2021-12-16 03:24:45,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:45,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638636782] [2021-12-16 03:24:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:45,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:45,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 03:24:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:45,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 03:24:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 03:24:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 03:24:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 03:24:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 03:24:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 03:24:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 03:24:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 03:24:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 03:24:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 03:24:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 03:24:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-16 03:24:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-16 03:24:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-16 03:24:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 03:24:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 03:24:46,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:46,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638636782] [2021-12-16 03:24:46,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638636782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:46,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:24:46,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:24:46,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256347759] [2021-12-16 03:24:46,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:46,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:24:46,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:46,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:24:46,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:24:46,061 INFO L87 Difference]: Start difference. First operand 2284 states and 3127 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-16 03:24:49,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:24:51,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:24:52,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:52,163 INFO L93 Difference]: Finished difference Result 7653 states and 11236 transitions. [2021-12-16 03:24:52,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:24:52,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2021-12-16 03:24:52,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:52,185 INFO L225 Difference]: With dead ends: 7653 [2021-12-16 03:24:52,186 INFO L226 Difference]: Without dead ends: 5412 [2021-12-16 03:24:52,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:24:52,193 INFO L933 BasicCegarLoop]: 2902 mSDtfsCounter, 2491 mSDsluCounter, 5908 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 906 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 8810 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 906 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:52,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2797 Valid, 8810 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [906 Valid, 1308 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-12-16 03:24:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2021-12-16 03:24:52,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 2286. [2021-12-16 03:24:52,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2286 states, 1632 states have (on average 1.3075980392156863) internal successors, (2134), 1664 states have internal predecessors, (2134), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-16 03:24:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 3129 transitions. [2021-12-16 03:24:52,296 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 3129 transitions. Word has length 175 [2021-12-16 03:24:52,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:52,296 INFO L470 AbstractCegarLoop]: Abstraction has 2286 states and 3129 transitions. [2021-12-16 03:24:52,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-16 03:24:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 3129 transitions. [2021-12-16 03:24:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-16 03:24:52,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:52,300 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:52,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 03:24:52,300 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:52,300 INFO L85 PathProgramCache]: Analyzing trace with hash 355077106, now seen corresponding path program 1 times [2021-12-16 03:24:52,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:52,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701223111] [2021-12-16 03:24:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:52,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 03:24:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 03:24:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 03:24:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 03:24:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 03:24:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 03:24:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 03:24:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 03:24:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 03:24:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 03:24:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 03:24:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:24:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-16 03:24:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 03:24:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-16 03:24:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-16 03:24:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-16 03:24:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 03:24:52,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:52,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701223111] [2021-12-16 03:24:52,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701223111] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:24:52,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290056264] [2021-12-16 03:24:52,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:52,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:24:52,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:24:52,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:24:52,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 03:24:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:53,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-16 03:24:53,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:24:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-16 03:24:53,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:24:53,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290056264] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:53,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:24:53,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-16 03:24:53,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820005326] [2021-12-16 03:24:53,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:53,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 03:24:53,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:53,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 03:24:53,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-12-16 03:24:53,547 INFO L87 Difference]: Start difference. First operand 2286 states and 3129 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-16 03:24:53,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:53,702 INFO L93 Difference]: Finished difference Result 4557 states and 6239 transitions. [2021-12-16 03:24:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 03:24:53,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 177 [2021-12-16 03:24:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:53,711 INFO L225 Difference]: With dead ends: 4557 [2021-12-16 03:24:53,711 INFO L226 Difference]: Without dead ends: 2264 [2021-12-16 03:24:53,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2021-12-16 03:24:53,717 INFO L933 BasicCegarLoop]: 1592 mSDtfsCounter, 15 mSDsluCounter, 7932 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 9524 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:53,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 9524 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:24:53,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2021-12-16 03:24:53,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2264. [2021-12-16 03:24:53,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 1619 states have (on average 1.3069796170475603) internal successors, (2116), 1650 states have internal predecessors, (2116), 491 states have call successors, (491), 154 states have call predecessors, (491), 153 states have return successors, (492), 483 states have call predecessors, (492), 489 states have call successors, (492) [2021-12-16 03:24:53,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3099 transitions. [2021-12-16 03:24:53,774 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3099 transitions. Word has length 177 [2021-12-16 03:24:53,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:53,774 INFO L470 AbstractCegarLoop]: Abstraction has 2264 states and 3099 transitions. [2021-12-16 03:24:53,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-16 03:24:53,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3099 transitions. [2021-12-16 03:24:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-16 03:24:53,778 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:53,778 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:53,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 03:24:53,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:24:53,988 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:53,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:53,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1012368946, now seen corresponding path program 1 times [2021-12-16 03:24:53,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:53,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765170209] [2021-12-16 03:24:53,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:53,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 03:24:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 03:24:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 03:24:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 03:24:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 03:24:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 03:24:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 03:24:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 03:24:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 03:24:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 03:24:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-16 03:24:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-16 03:24:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-16 03:24:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 03:24:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:24:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-16 03:24:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-16 03:24:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-16 03:24:54,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:54,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765170209] [2021-12-16 03:24:54,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765170209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:54,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:24:54,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:24:54,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816217916] [2021-12-16 03:24:54,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:54,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:24:54,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:54,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:24:54,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:24:54,238 INFO L87 Difference]: Start difference. First operand 2264 states and 3099 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-16 03:24:55,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:55,370 INFO L93 Difference]: Finished difference Result 4743 states and 6547 transitions. [2021-12-16 03:24:55,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:24:55,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 190 [2021-12-16 03:24:55,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:55,380 INFO L225 Difference]: With dead ends: 4743 [2021-12-16 03:24:55,380 INFO L226 Difference]: Without dead ends: 2510 [2021-12-16 03:24:55,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:24:55,387 INFO L933 BasicCegarLoop]: 1586 mSDtfsCounter, 1961 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:55,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2125 Valid, 2450 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 03:24:55,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2021-12-16 03:24:55,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2299. [2021-12-16 03:24:55,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1642 states have (on average 1.3002436053593178) internal successors, (2135), 1673 states have internal predecessors, (2135), 496 states have call successors, (496), 161 states have call predecessors, (496), 160 states have return successors, (497), 488 states have call predecessors, (497), 494 states have call successors, (497) [2021-12-16 03:24:55,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3128 transitions. [2021-12-16 03:24:55,491 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3128 transitions. Word has length 190 [2021-12-16 03:24:55,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:55,492 INFO L470 AbstractCegarLoop]: Abstraction has 2299 states and 3128 transitions. [2021-12-16 03:24:55,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-16 03:24:55,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3128 transitions. [2021-12-16 03:24:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-16 03:24:55,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:55,495 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:55,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 03:24:55,495 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash -717257111, now seen corresponding path program 1 times [2021-12-16 03:24:55,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:55,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145556231] [2021-12-16 03:24:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:55,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 03:24:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 03:24:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 03:24:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 03:24:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 03:24:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 03:24:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 03:24:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 03:24:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 03:24:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 03:24:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-16 03:24:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-16 03:24:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-16 03:24:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-16 03:24:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-16 03:24:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-16 03:24:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-16 03:24:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:55,803 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-16 03:24:55,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:55,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145556231] [2021-12-16 03:24:55,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145556231] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:24:55,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723812969] [2021-12-16 03:24:55,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:55,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:24:55,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:24:55,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:24:55,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 03:24:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:56,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 3197 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-16 03:24:56,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:24:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 03:24:56,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:24:56,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723812969] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:56,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:24:56,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-12-16 03:24:56,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846816449] [2021-12-16 03:24:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:56,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:24:56,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:56,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:24:56,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-12-16 03:24:56,717 INFO L87 Difference]: Start difference. First operand 2299 states and 3128 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-16 03:24:56,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:56,849 INFO L93 Difference]: Finished difference Result 4545 states and 6206 transitions. [2021-12-16 03:24:56,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:24:56,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 191 [2021-12-16 03:24:56,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:56,884 INFO L225 Difference]: With dead ends: 4545 [2021-12-16 03:24:56,884 INFO L226 Difference]: Without dead ends: 2309 [2021-12-16 03:24:56,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-12-16 03:24:56,889 INFO L933 BasicCegarLoop]: 1573 mSDtfsCounter, 21 mSDsluCounter, 4708 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 6281 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:56,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 6281 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:24:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2021-12-16 03:24:56,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2307. [2021-12-16 03:24:56,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 1649 states have (on average 1.2989690721649485) internal successors, (2142), 1681 states have internal predecessors, (2142), 496 states have call successors, (496), 161 states have call predecessors, (496), 161 states have return successors, (499), 488 states have call predecessors, (499), 494 states have call successors, (499) [2021-12-16 03:24:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3137 transitions. [2021-12-16 03:24:56,954 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3137 transitions. Word has length 191 [2021-12-16 03:24:56,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:56,954 INFO L470 AbstractCegarLoop]: Abstraction has 2307 states and 3137 transitions. [2021-12-16 03:24:56,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-16 03:24:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3137 transitions. [2021-12-16 03:24:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-16 03:24:56,957 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:56,957 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:56,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 03:24:57,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-16 03:24:57,164 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:57,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:57,164 INFO L85 PathProgramCache]: Analyzing trace with hash -289792324, now seen corresponding path program 1 times [2021-12-16 03:24:57,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:57,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997150158] [2021-12-16 03:24:57,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:57,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 03:24:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 03:24:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 03:24:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 03:24:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 03:24:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 03:24:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 03:24:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 03:24:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 03:24:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-16 03:24:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-16 03:24:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 03:24:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-16 03:24:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-16 03:24:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-16 03:24:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-16 03:24:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-16 03:24:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-16 03:24:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:57,455 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-16 03:24:57,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:57,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997150158] [2021-12-16 03:24:57,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997150158] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:24:57,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040749721] [2021-12-16 03:24:57,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:57,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:24:57,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:24:57,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:24:57,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 03:24:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:58,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 54 conjunts are in the unsatisfiable core [2021-12-16 03:24:58,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:24:58,526 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-16 03:24:58,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:24:58,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040749721] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:24:58,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:24:58,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 18 [2021-12-16 03:24:58,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968589255] [2021-12-16 03:24:58,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:24:58,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 03:24:58,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:24:58,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 03:24:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-12-16 03:24:58,528 INFO L87 Difference]: Start difference. First operand 2307 states and 3137 transitions. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-16 03:24:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:24:58,841 INFO L93 Difference]: Finished difference Result 4605 states and 6291 transitions. [2021-12-16 03:24:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-16 03:24:58,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) Word has length 197 [2021-12-16 03:24:58,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:24:58,858 INFO L225 Difference]: With dead ends: 4605 [2021-12-16 03:24:58,858 INFO L226 Difference]: Without dead ends: 2333 [2021-12-16 03:24:58,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-12-16 03:24:58,864 INFO L933 BasicCegarLoop]: 1584 mSDtfsCounter, 65 mSDsluCounter, 14213 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 15797 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:24:58,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 15797 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:24:58,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2021-12-16 03:24:58,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2309. [2021-12-16 03:24:58,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 1650 states have (on average 1.2987878787878788) internal successors, (2143), 1683 states have internal predecessors, (2143), 496 states have call successors, (496), 161 states have call predecessors, (496), 162 states have return successors, (500), 488 states have call predecessors, (500), 494 states have call successors, (500) [2021-12-16 03:24:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3139 transitions. [2021-12-16 03:24:58,931 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3139 transitions. Word has length 197 [2021-12-16 03:24:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:24:58,931 INFO L470 AbstractCegarLoop]: Abstraction has 2309 states and 3139 transitions. [2021-12-16 03:24:58,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-16 03:24:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3139 transitions. [2021-12-16 03:24:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-16 03:24:58,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:24:58,936 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:24:58,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-16 03:24:59,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:24:59,143 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:24:59,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:24:59,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1264891567, now seen corresponding path program 1 times [2021-12-16 03:24:59,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:24:59,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770426953] [2021-12-16 03:24:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:59,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:24:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:24:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 03:24:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:24:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 03:24:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:24:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 03:24:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 03:24:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 03:24:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 03:24:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 03:24:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:24:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 03:24:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 03:24:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-16 03:24:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-16 03:24:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 03:24:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-16 03:24:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-16 03:24:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-16 03:24:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 03:24:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-16 03:24:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:24:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-16 03:24:59,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:24:59,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770426953] [2021-12-16 03:24:59,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770426953] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:24:59,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90000739] [2021-12-16 03:24:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:24:59,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:24:59,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:24:59,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:24:59,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 03:25:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:00,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 3253 conjuncts, 100 conjunts are in the unsatisfiable core [2021-12-16 03:25:00,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:25:00,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:00,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:00,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:00,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:00,145 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-16 03:25:00,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-16 03:25:00,488 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-16 03:25:00,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-16 03:25:00,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-16 03:25:01,281 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-16 03:25:01,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-16 03:25:01,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:01,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:01,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-16 03:25:02,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-16 03:25:02,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:02,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:02,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:02,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:03,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-16 03:25:03,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-16 03:25:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 03:25:03,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:25:04,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90000739] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:25:04,297 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 03:25:04,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 24] total 33 [2021-12-16 03:25:04,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974042875] [2021-12-16 03:25:04,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 03:25:04,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-16 03:25:04,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:25:04,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-16 03:25:04,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1305, Unknown=9, NotChecked=0, Total=1482 [2021-12-16 03:25:04,299 INFO L87 Difference]: Start difference. First operand 2309 states and 3139 transitions. Second operand has 33 states, 32 states have (on average 7.8125) internal successors, (250), 25 states have internal predecessors, (250), 10 states have call successors, (56), 10 states have call predecessors, (56), 13 states have return successors, (50), 14 states have call predecessors, (50), 9 states have call successors, (50) [2021-12-16 03:25:08,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:25:10,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:25:12,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:25:14,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:25:15,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:25:15,901 INFO L93 Difference]: Finished difference Result 4812 states and 6601 transitions. [2021-12-16 03:25:15,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-16 03:25:15,901 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 7.8125) internal successors, (250), 25 states have internal predecessors, (250), 10 states have call successors, (56), 10 states have call predecessors, (56), 13 states have return successors, (50), 14 states have call predecessors, (50), 9 states have call successors, (50) Word has length 201 [2021-12-16 03:25:15,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:25:15,909 INFO L225 Difference]: With dead ends: 4812 [2021-12-16 03:25:15,910 INFO L226 Difference]: Without dead ends: 2506 [2021-12-16 03:25:15,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 342 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=388, Invalid=2795, Unknown=9, NotChecked=0, Total=3192 [2021-12-16 03:25:15,915 INFO L933 BasicCegarLoop]: 1570 mSDtfsCounter, 383 mSDsluCounter, 13266 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 326 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 14836 SdHoareTripleChecker+Invalid, 4640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 1115 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-12-16 03:25:15,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 14836 Invalid, 4640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 3196 Invalid, 3 Unknown, 1115 Unchecked, 10.8s Time] [2021-12-16 03:25:15,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-12-16 03:25:15,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2307. [2021-12-16 03:25:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 1649 states have (on average 1.2983626440266829) internal successors, (2141), 1681 states have internal predecessors, (2141), 496 states have call successors, (496), 161 states have call predecessors, (496), 161 states have return successors, (499), 488 states have call predecessors, (499), 494 states have call successors, (499) [2021-12-16 03:25:15,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3136 transitions. [2021-12-16 03:25:15,978 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3136 transitions. Word has length 201 [2021-12-16 03:25:15,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:25:15,979 INFO L470 AbstractCegarLoop]: Abstraction has 2307 states and 3136 transitions. [2021-12-16 03:25:15,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 7.8125) internal successors, (250), 25 states have internal predecessors, (250), 10 states have call successors, (56), 10 states have call predecessors, (56), 13 states have return successors, (50), 14 states have call predecessors, (50), 9 states have call successors, (50) [2021-12-16 03:25:15,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3136 transitions. [2021-12-16 03:25:15,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-16 03:25:15,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:25:15,982 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:25:16,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 03:25:16,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:25:16,207 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:25:16,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:25:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash 631681022, now seen corresponding path program 2 times [2021-12-16 03:25:16,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:25:16,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179034411] [2021-12-16 03:25:16,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:25:16,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:25:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 03:25:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:25:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:25:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:25:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:25:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:25:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:25:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:25:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 03:25:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:25:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 03:25:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 03:25:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 03:25:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 03:25:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 03:25:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 03:25:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-16 03:25:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 03:25:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-16 03:25:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 03:25:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-16 03:25:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-16 03:25:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-16 03:25:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-16 03:25:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 03:25:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-16 03:25:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:25:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-16 03:25:16,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:25:16,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179034411] [2021-12-16 03:25:16,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179034411] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:25:16,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346055230] [2021-12-16 03:25:16,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:25:16,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:25:16,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:25:16,755 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:25:16,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 03:25:17,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 03:25:17,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:25:17,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 3290 conjuncts, 111 conjunts are in the unsatisfiable core [2021-12-16 03:25:17,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:25:17,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:17,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:17,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:17,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:17,864 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-16 03:25:17,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-16 03:25:18,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-16 03:25:18,297 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-16 03:25:18,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-16 03:25:18,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:18,524 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-16 03:25:18,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-12-16 03:25:18,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-16 03:25:18,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-16 03:25:19,547 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-12-16 03:25:19,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-12-16 03:25:19,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:19,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:19,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:19,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-12-16 03:25:20,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-16 03:25:20,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-16 03:25:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:20,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-12-16 03:25:21,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:21,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-16 03:25:21,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:25:21,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16