./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:10:26,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:10:26,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:10:26,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:10:26,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:10:26,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:10:26,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:10:26,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:10:26,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:10:26,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:10:26,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:10:26,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:10:26,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:10:26,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:10:26,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:10:26,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:10:26,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:10:26,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:10:26,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:10:26,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:10:26,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:10:26,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:10:26,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:10:26,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:10:26,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:10:26,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:10:26,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:10:26,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:10:26,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:10:26,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:10:26,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:10:26,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:10:26,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:10:26,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:10:26,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:10:26,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:10:26,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:10:26,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:10:26,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:10:26,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:10:26,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:10:26,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:10:26,219 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:10:26,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:10:26,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:10:26,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:10:26,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:10:26,230 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:10:26,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:10:26,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:10:26,231 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:10:26,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:10:26,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:10:26,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:10:26,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:10:26,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:10:26,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:10:26,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:10:26,239 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:10:26,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:10:26,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:10:26,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:10:26,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:10:26,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:10:26,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:10:26,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:10:26,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:10:26,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:10:26,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:10:26,245 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:10:26,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:10:26,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:10:26,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:10:26,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-12-14 17:10:26,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:10:26,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:10:26,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:10:26,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:10:26,756 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:10:26,757 INFO L432 ainManager$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 [2021-12-14 17:10:26,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0f5da93/50cc4628a6384ba0a21aff6bd4c8d83b/FLAGa21a8b42e [2021-12-14 17:10:27,592 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:10:27,593 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 [2021-12-14 17:10:27,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0f5da93/50cc4628a6384ba0a21aff6bd4c8d83b/FLAGa21a8b42e [2021-12-14 17:10:27,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0f5da93/50cc4628a6384ba0a21aff6bd4c8d83b [2021-12-14 17:10:27,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:10:27,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:10:27,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:10:27,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:10:27,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:10:27,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:10:27" (1/1) ... [2021-12-14 17:10:27,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4037f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:27, skipping insertion in model container [2021-12-14 17:10:27,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:10:27" (1/1) ... [2021-12-14 17:10:27,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:10:28,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:10:30,010 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] [2021-12-14 17:10:30,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:10:30,167 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:10:30,853 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] [2021-12-14 17:10:30,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:10:31,024 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:10:31,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31 WrapperNode [2021-12-14 17:10:31,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:10:31,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:10:31,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:10:31,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:10:31,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,456 INFO L137 Inliner]: procedures = 309, calls = 2428, calls flagged for inlining = 139, calls inlined = 90, statements flattened = 3931 [2021-12-14 17:10:31,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:10:31,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:10:31,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:10:31,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:10:31,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:10:31,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:10:31,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:10:31,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:10:31,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (1/1) ... [2021-12-14 17:10:31,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:10:31,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:10:31,880 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) [2021-12-14 17:10:31,919 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 [2021-12-14 17:10:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-14 17:10:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-14 17:10:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-14 17:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-14 17:10:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_ctl_ioctl [2021-12-14 17:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_ctl_ioctl [2021-12-14 17:10:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_release [2021-12-14 17:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_release [2021-12-14 17:10:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-14 17:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-14 17:10:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:10:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:10:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_disc_info [2021-12-14 17:10:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_disc_info [2021-12-14 17:10:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_bio_alloc [2021-12-14 17:10:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_bio_alloc [2021-12-14 17:10:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:10:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_setup_dev [2021-12-14 17:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_setup_dev [2021-12-14 17:10:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-14 17:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-14 17:10:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2021-12-14 17:10:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget [2021-12-14 17:10:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_set_speed [2021-12-14 17:10:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_set_speed [2021-12-14 17:10:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2021-12-14 17:10:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2021-12-14 17:10:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:10:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_shrink_pktlist [2021-12-14 17:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_shrink_pktlist [2021-12-14 17:10:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-14 17:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-14 17:10:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-12-14 17:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-12-14 17:10:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 17:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 17:10:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:10:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2021-12-14 17:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2021-12-14 17:10:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2021-12-14 17:10:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2021-12-14 17:10:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:10:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:10:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_select [2021-12-14 17:10:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_select [2021-12-14 17:10:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_remove [2021-12-14 17:10:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_remove [2021-12-14 17:10:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-14 17:10:31,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-14 17:10:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_debugfs_cleanup [2021-12-14 17:10:31,980 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_debugfs_cleanup [2021-12-14 17:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:10:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:10:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2021-12-14 17:10:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2021-12-14 17:10:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2021-12-14 17:10:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blocksize [2021-12-14 17:10:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_dump_sense [2021-12-14 17:10:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_dump_sense [2021-12-14 17:10:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2021-12-14 17:10:31,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2021-12-14 17:10:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-12-14 17:10:31,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-12-14 17:10:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:10:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-12-14 17:10:31,985 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-12-14 17:10:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_lock_door [2021-12-14 17:10:31,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_lock_door [2021-12-14 17:10:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2021-12-14 17:10:31,986 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get [2021-12-14 17:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_remove_dev [2021-12-14 17:10:31,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_remove_dev [2021-12-14 17:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-14 17:10:31,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-14 17:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-14 17:10:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-14 17:10:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:10:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2021-12-14 17:10:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2021-12-14 17:10:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:10:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:10:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:10:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-14 17:10:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-14 17:10:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-14 17:10:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-14 17:10:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-14 17:10:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-14 17:10:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:10:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:10:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:10:31,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:10:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-14 17:10:31,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-14 17:10:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:10:31,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:10:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:10:31,991 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:10:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_sysfs_cleanup [2021-12-14 17:10:31,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_sysfs_cleanup [2021-12-14 17:10:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-12-14 17:10:31,992 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-12-14 17:10:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_find_dev_from_minor [2021-12-14 17:10:32,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_find_dev_from_minor [2021-12-14 17:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:10:32,008 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:10:32,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:10:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-14 17:10:32,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-14 17:10:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure init_write_congestion_marks [2021-12-14 17:10:32,009 INFO L138 BoogieDeclarations]: Found implementation of procedure init_write_congestion_marks [2021-12-14 17:10:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-14 17:10:32,010 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-14 17:10:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:10:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_track_info [2021-12-14 17:10:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_track_info [2021-12-14 17:10:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:10:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-12-14 17:10:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-12-14 17:10:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:10:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:10:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2021-12-14 17:10:32,019 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2021-12-14 17:10:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:10:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_create [2021-12-14 17:10:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_create [2021-12-14 17:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:10:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:10:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-12-14 17:10:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-12-14 17:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-14 17:10:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-14 17:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:10:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2021-12-14 17:10:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2021-12-14 17:10:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:10:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-12-14 17:10:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-12-14 17:10:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2021-12-14 17:10:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2021-12-14 17:10:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2021-12-14 17:10:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2021-12-14 17:10:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure init_cdrom_command [2021-12-14 17:10:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure init_cdrom_command [2021-12-14 17:10:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-14 17:10:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-14 17:10:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_sense [2021-12-14 17:10:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_sense [2021-12-14 17:10:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-14 17:10:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-14 17:10:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_generic_packet [2021-12-14 17:10:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_generic_packet [2021-12-14 17:10:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:10:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:10:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:10:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:10:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2021-12-14 17:10:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2021-12-14 17:10:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_flush_cache [2021-12-14 17:10:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_flush_cache [2021-12-14 17:10:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:10:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:10:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:10:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:10:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:10:32,988 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:10:33,004 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:10:33,182 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:10:33,351 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-12-14 17:10:33,351 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-12-14 17:10:36,814 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:10:36,821 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:10:36,822 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:10:36,826 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:10:36,844 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:10:36,845 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:10:36,849 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:10:45,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##214: assume !false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume !false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##300: assume false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume !false; [2021-12-14 17:10:45,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##392: assume false; [2021-12-14 17:10:45,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume !false; [2021-12-14 17:10:45,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##152: assume false; [2021-12-14 17:10:45,660 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:10:45,679 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:10:45,679 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 17:10:45,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:10:45 BoogieIcfgContainer [2021-12-14 17:10:45,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:10:45,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:10:45,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:10:45,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:10:45,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:10:27" (1/3) ... [2021-12-14 17:10:45,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603a4386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:10:45, skipping insertion in model container [2021-12-14 17:10:45,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:10:31" (2/3) ... [2021-12-14 17:10:45,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603a4386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:10:45, skipping insertion in model container [2021-12-14 17:10:45,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:10:45" (3/3) ... [2021-12-14 17:10:45,691 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-12-14 17:10:45,696 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:10:45,696 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:10:45,752 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:10:45,759 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 [2021-12-14 17:10:45,759 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:10:45,833 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) [2021-12-14 17:10:45,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-14 17:10:45,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:10:45,841 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] [2021-12-14 17:10:45,841 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:10:45,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:10:45,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1329987391, now seen corresponding path program 1 times [2021-12-14 17:10:45,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:10:45,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608842820] [2021-12-14 17:10:45,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:10:45,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:10:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:46,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:10:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:10:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:10:46,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:10:46,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608842820] [2021-12-14 17:10:46,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608842820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:10:46,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:10:46,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:10:46,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119891796] [2021-12-14 17:10:46,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:10:46,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:10:46,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:10:46,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:10:46,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:10:46,554 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) [2021-12-14 17:10:51,416 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 [] [2021-12-14 17:10:52,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:10:52,089 INFO L93 Difference]: Finished difference Result 3663 states and 5242 transitions. [2021-12-14 17:10:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:10:52,092 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 [2021-12-14 17:10:52,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:10:52,136 INFO L225 Difference]: With dead ends: 3663 [2021-12-14 17:10:52,136 INFO L226 Difference]: Without dead ends: 2471 [2021-12-14 17:10:52,173 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 [2021-12-14 17:10:52,179 INFO L933 BasicCegarLoop]: 1856 mSDtfsCounter, 2069 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 673 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 4046 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:10:52,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2272 Valid, 4046 Invalid, 1588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [673 Valid, 914 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-12-14 17:10:52,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2021-12-14 17:10:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2274. [2021-12-14 17:10:52,381 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) [2021-12-14 17:10:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3116 transitions. [2021-12-14 17:10:52,399 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3116 transitions. Word has length 23 [2021-12-14 17:10:52,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:10:52,400 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3116 transitions. [2021-12-14 17:10:52,400 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) [2021-12-14 17:10:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3116 transitions. [2021-12-14 17:10:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-14 17:10:52,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:10:52,410 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] [2021-12-14 17:10:52,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:10:52,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:10:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:10:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1907254522, now seen corresponding path program 1 times [2021-12-14 17:10:52,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:10:52,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460819652] [2021-12-14 17:10:52,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:10:52,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:10:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:10:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:10:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 17:10:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 17:10:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-14 17:10:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:10:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 17:10:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 17:10:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 17:10:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 17:10:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:10:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 17:10:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 17:10:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 17:10:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 17:10:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-14 17:10:52,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:10:52,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460819652] [2021-12-14 17:10:52,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460819652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:10:52,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:10:52,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:10:52,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848307455] [2021-12-14 17:10:52,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:10:52,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:10:52,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:10:52,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:10:52,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:10:52,855 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) [2021-12-14 17:10:55,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:10:55,430 INFO L93 Difference]: Finished difference Result 4693 states and 6491 transitions. [2021-12-14 17:10:55,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:10:55,431 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 [2021-12-14 17:10:55,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:10:55,453 INFO L225 Difference]: With dead ends: 4693 [2021-12-14 17:10:55,470 INFO L226 Difference]: Without dead ends: 2468 [2021-12-14 17:10:55,479 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 [2021-12-14 17:10:55,480 INFO L933 BasicCegarLoop]: 1589 mSDtfsCounter, 611 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 5132 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:10:55,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 5132 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-14 17:10:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-12-14 17:10:55,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2274. [2021-12-14 17:10:55,554 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) [2021-12-14 17:10:55,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3115 transitions. [2021-12-14 17:10:55,582 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3115 transitions. Word has length 130 [2021-12-14 17:10:55,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:10:55,583 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3115 transitions. [2021-12-14 17:10:55,583 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) [2021-12-14 17:10:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3115 transitions. [2021-12-14 17:10:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-14 17:10:55,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:10:55,589 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] [2021-12-14 17:10:55,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:10:55,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:10:55,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:10:55,592 INFO L85 PathProgramCache]: Analyzing trace with hash -579514170, now seen corresponding path program 1 times [2021-12-14 17:10:55,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:10:55,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128311495] [2021-12-14 17:10:55,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:10:55,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:10:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:55,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:10:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:10:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 17:10:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 17:10:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-14 17:10:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:10:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:10:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 17:10:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 17:10:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:10:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 17:10:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 17:10:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 17:10:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 17:10:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 17:10:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 17:10:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:10:56,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 17:10:56,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:10:56,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128311495] [2021-12-14 17:10:56,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128311495] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:10:56,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:10:56,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:10:56,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289206222] [2021-12-14 17:10:56,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:10:56,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:10:56,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:10:56,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:10:56,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:10:56,168 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) [2021-12-14 17:10:59,515 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 [] [2021-12-14 17:11:00,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:00,322 INFO L93 Difference]: Finished difference Result 4795 states and 6646 transitions. [2021-12-14 17:11:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:11:00,323 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 [2021-12-14 17:11:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:00,340 INFO L225 Difference]: With dead ends: 4795 [2021-12-14 17:11:00,340 INFO L226 Difference]: Without dead ends: 2572 [2021-12-14 17:11:00,349 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 [2021-12-14 17:11:00,352 INFO L933 BasicCegarLoop]: 1623 mSDtfsCounter, 368 mSDsluCounter, 2983 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 310 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 4606 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:11:00,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 4606 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 981 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-12-14 17:11:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2021-12-14 17:11:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2284. [2021-12-14 17:11:00,463 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) [2021-12-14 17:11:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3129 transitions. [2021-12-14 17:11:00,483 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3129 transitions. Word has length 137 [2021-12-14 17:11:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:00,485 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3129 transitions. [2021-12-14 17:11:00,485 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) [2021-12-14 17:11:00,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3129 transitions. [2021-12-14 17:11:00,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-14 17:11:00,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:00,511 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] [2021-12-14 17:11:00,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:11:00,512 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:00,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash -399599362, now seen corresponding path program 1 times [2021-12-14 17:11:00,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:00,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132076460] [2021-12-14 17:11:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:00,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:11:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 17:11:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 17:11:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 17:11:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 17:11:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 17:11:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 17:11:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:11:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 17:11:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 17:11:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 17:11:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 17:11:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:11:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 17:11:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 17:11:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-14 17:11:00,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:00,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132076460] [2021-12-14 17:11:00,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132076460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:11:00,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:11:00,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 17:11:00,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483148403] [2021-12-14 17:11:00,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:11:00,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 17:11:00,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:11:00,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 17:11:00,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:11:00,904 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) [2021-12-14 17:11:02,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:02,994 INFO L93 Difference]: Finished difference Result 4715 states and 6521 transitions. [2021-12-14 17:11:02,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 17:11:02,994 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 [2021-12-14 17:11:02,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:03,010 INFO L225 Difference]: With dead ends: 4715 [2021-12-14 17:11:03,010 INFO L226 Difference]: Without dead ends: 2478 [2021-12-14 17:11:03,019 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 [2021-12-14 17:11:03,021 INFO L933 BasicCegarLoop]: 1586 mSDtfsCounter, 308 mSDsluCounter, 5676 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 7262 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:11:03,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 7262 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-14 17:11:03,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2021-12-14 17:11:03,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2284. [2021-12-14 17:11:03,092 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) [2021-12-14 17:11:03,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3128 transitions. [2021-12-14 17:11:03,102 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3128 transitions. Word has length 143 [2021-12-14 17:11:03,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:03,103 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3128 transitions. [2021-12-14 17:11:03,103 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) [2021-12-14 17:11:03,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3128 transitions. [2021-12-14 17:11:03,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-14 17:11:03,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:03,107 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] [2021-12-14 17:11:03,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:11:03,107 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:03,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:03,108 INFO L85 PathProgramCache]: Analyzing trace with hash -639749755, now seen corresponding path program 1 times [2021-12-14 17:11:03,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:03,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355538876] [2021-12-14 17:11:03,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:03,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:11:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:11:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 17:11:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 17:11:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 17:11:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 17:11:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 17:11:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 17:11:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 17:11:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:11:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 17:11:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 17:11:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 17:11:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 17:11:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 17:11:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 17:11:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 17:11:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 17:11:03,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:03,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355538876] [2021-12-14 17:11:03,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355538876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:11:03,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:11:03,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 17:11:03,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344278530] [2021-12-14 17:11:03,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:11:03,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 17:11:03,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:11:03,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 17:11:03,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:11:03,434 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) [2021-12-14 17:11:07,139 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 [] [2021-12-14 17:11:09,312 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 [] [2021-12-14 17:11:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:10,182 INFO L93 Difference]: Finished difference Result 4749 states and 6565 transitions. [2021-12-14 17:11:10,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:11:10,183 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 [2021-12-14 17:11:10,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:10,196 INFO L225 Difference]: With dead ends: 4749 [2021-12-14 17:11:10,197 INFO L226 Difference]: Without dead ends: 2478 [2021-12-14 17:11:10,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-14 17:11:10,206 INFO L933 BasicCegarLoop]: 1584 mSDtfsCounter, 312 mSDsluCounter, 7023 mSDsCounter, 0 mSdLazyCounter, 1826 mSolverCounterSat, 286 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 8607 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1826 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-14 17:11:10,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 8607 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1826 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-12-14 17:11:10,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2021-12-14 17:11:10,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2284. [2021-12-14 17:11:10,280 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) [2021-12-14 17:11:10,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3127 transitions. [2021-12-14 17:11:10,289 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3127 transitions. Word has length 173 [2021-12-14 17:11:10,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:10,290 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3127 transitions. [2021-12-14 17:11:10,290 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) [2021-12-14 17:11:10,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3127 transitions. [2021-12-14 17:11:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-14 17:11:10,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:10,294 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] [2021-12-14 17:11:10,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 17:11:10,295 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:10,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1466388562, now seen corresponding path program 1 times [2021-12-14 17:11:10,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:10,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083277380] [2021-12-14 17:11:10,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:10,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:11:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:11:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 17:11:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 17:11:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:11:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 17:11:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 17:11:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 17:11:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 17:11:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 17:11:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:11:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 17:11:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 17:11:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 17:11:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:11:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 17:11:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 17:11:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 17:11:10,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:10,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083277380] [2021-12-14 17:11:10,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083277380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:11:10,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:11:10,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:11:10,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191848057] [2021-12-14 17:11:10,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:11:10,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:11:10,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:11:10,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:11:10,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:11:10,603 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) [2021-12-14 17:11:14,092 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 [] [2021-12-14 17:11:15,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:15,576 INFO L93 Difference]: Finished difference Result 7653 states and 11236 transitions. [2021-12-14 17:11:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 17:11:15,584 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 [2021-12-14 17:11:15,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:15,657 INFO L225 Difference]: With dead ends: 7653 [2021-12-14 17:11:15,658 INFO L226 Difference]: Without dead ends: 5412 [2021-12-14 17:11:15,685 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 [2021-12-14 17:11:15,686 INFO L933 BasicCegarLoop]: 2900 mSDtfsCounter, 2491 mSDsluCounter, 5903 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 904 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2795 SdHoareTripleChecker+Valid, 8803 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-14 17:11:15,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2795 Valid, 8803 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 1309 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-12-14 17:11:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2021-12-14 17:11:15,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 2286. [2021-12-14 17:11:15,870 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) [2021-12-14 17:11:15,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 3129 transitions. [2021-12-14 17:11:15,880 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 3129 transitions. Word has length 175 [2021-12-14 17:11:15,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:15,880 INFO L470 AbstractCegarLoop]: Abstraction has 2286 states and 3129 transitions. [2021-12-14 17:11:15,881 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) [2021-12-14 17:11:15,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 3129 transitions. [2021-12-14 17:11:15,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-14 17:11:15,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:15,885 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] [2021-12-14 17:11:15,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 17:11:15,885 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:15,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:15,886 INFO L85 PathProgramCache]: Analyzing trace with hash 355077106, now seen corresponding path program 1 times [2021-12-14 17:11:15,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:15,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731774604] [2021-12-14 17:11:15,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:15,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:11:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:11:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-14 17:11:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 17:11:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:11:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:11:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 17:11:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 17:11:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 17:11:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 17:11:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 17:11:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 17:11:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 17:11:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 17:11:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 17:11:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-14 17:11:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 17:11:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-14 17:11:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:16,322 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 17:11:16,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:16,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731774604] [2021-12-14 17:11:16,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731774604] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:11:16,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267769218] [2021-12-14 17:11:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:16,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:11:16,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:11:16,325 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) [2021-12-14 17:11:16,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 17:11:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:17,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-14 17:11:17,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:11:17,764 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-14 17:11:17,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:11:17,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267769218] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:11:17,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 17:11:17,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-14 17:11:17,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474901051] [2021-12-14 17:11:17,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:11:17,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 17:11:17,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:11:17,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 17:11:17,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-12-14 17:11:17,766 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) [2021-12-14 17:11:17,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:17,966 INFO L93 Difference]: Finished difference Result 4557 states and 6239 transitions. [2021-12-14 17:11:17,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 17:11:17,966 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 [2021-12-14 17:11:17,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:17,978 INFO L225 Difference]: With dead ends: 4557 [2021-12-14 17:11:17,978 INFO L226 Difference]: Without dead ends: 2264 [2021-12-14 17:11:17,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2021-12-14 17:11:17,988 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 [2021-12-14 17:11:17,988 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] [2021-12-14 17:11:17,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2021-12-14 17:11:18,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2264. [2021-12-14 17:11:18,055 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) [2021-12-14 17:11:18,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3099 transitions. [2021-12-14 17:11:18,064 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3099 transitions. Word has length 177 [2021-12-14 17:11:18,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:18,064 INFO L470 AbstractCegarLoop]: Abstraction has 2264 states and 3099 transitions. [2021-12-14 17:11:18,064 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) [2021-12-14 17:11:18,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3099 transitions. [2021-12-14 17:11:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-14 17:11:18,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:18,069 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] [2021-12-14 17:11:18,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-14 17:11:18,287 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 [2021-12-14 17:11:18,288 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:18,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:18,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1012368946, now seen corresponding path program 1 times [2021-12-14 17:11:18,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:18,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404281399] [2021-12-14 17:11:18,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:18,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:11:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:11:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 17:11:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 17:11:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:11:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 17:11:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 17:11:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 17:11:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 17:11:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:11:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 17:11:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 17:11:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 17:11:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 17:11:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 17:11:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 17:11:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-14 17:11:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 17:11:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:18,676 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 17:11:18,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:18,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404281399] [2021-12-14 17:11:18,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404281399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:11:18,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:11:18,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:11:18,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471382681] [2021-12-14 17:11:18,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:11:18,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:11:18,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:11:18,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:11:18,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:11:18,678 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) [2021-12-14 17:11:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:20,364 INFO L93 Difference]: Finished difference Result 4743 states and 6547 transitions. [2021-12-14 17:11:20,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:11:20,371 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 [2021-12-14 17:11:20,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:20,391 INFO L225 Difference]: With dead ends: 4743 [2021-12-14 17:11:20,393 INFO L226 Difference]: Without dead ends: 2510 [2021-12-14 17:11:20,403 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 [2021-12-14 17:11:20,403 INFO L933 BasicCegarLoop]: 1568 mSDtfsCounter, 1976 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 710 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 710 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-14 17:11:20,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2140 Valid, 2432 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [710 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-14 17:11:20,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2021-12-14 17:11:20,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2299. [2021-12-14 17:11:20,517 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) [2021-12-14 17:11:20,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3128 transitions. [2021-12-14 17:11:20,526 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3128 transitions. Word has length 190 [2021-12-14 17:11:20,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:20,527 INFO L470 AbstractCegarLoop]: Abstraction has 2299 states and 3128 transitions. [2021-12-14 17:11:20,527 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) [2021-12-14 17:11:20,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3128 transitions. [2021-12-14 17:11:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-14 17:11:20,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:20,532 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] [2021-12-14 17:11:20,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 17:11:20,532 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:20,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:20,533 INFO L85 PathProgramCache]: Analyzing trace with hash -717257111, now seen corresponding path program 1 times [2021-12-14 17:11:20,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:20,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539702972] [2021-12-14 17:11:20,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:20,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:11:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:11:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 17:11:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 17:11:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:11:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 17:11:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 17:11:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 17:11:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 17:11:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 17:11:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 17:11:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 17:11:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 17:11:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 17:11:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 17:11:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 17:11:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 17:11:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 17:11:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:20,993 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-14 17:11:20,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:20,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539702972] [2021-12-14 17:11:20,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539702972] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:11:20,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984096686] [2021-12-14 17:11:20,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:20,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:11:20,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:11:21,000 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) [2021-12-14 17:11:21,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 17:11:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:21,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 3197 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-14 17:11:21,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:11:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-14 17:11:22,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:11:22,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984096686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:11:22,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 17:11:22,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-12-14 17:11:22,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726575051] [2021-12-14 17:11:22,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:11:22,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:11:22,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:11:22,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:11:22,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-12-14 17:11:22,464 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) [2021-12-14 17:11:22,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:22,688 INFO L93 Difference]: Finished difference Result 4545 states and 6206 transitions. [2021-12-14 17:11:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 17:11:22,689 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 [2021-12-14 17:11:22,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:22,709 INFO L225 Difference]: With dead ends: 4545 [2021-12-14 17:11:22,709 INFO L226 Difference]: Without dead ends: 2309 [2021-12-14 17:11:22,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-12-14 17:11:22,719 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:11:22,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 6281 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:11:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2021-12-14 17:11:22,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2307. [2021-12-14 17:11:22,822 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) [2021-12-14 17:11:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3137 transitions. [2021-12-14 17:11:22,832 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3137 transitions. Word has length 191 [2021-12-14 17:11:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:22,832 INFO L470 AbstractCegarLoop]: Abstraction has 2307 states and 3137 transitions. [2021-12-14 17:11:22,833 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) [2021-12-14 17:11:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3137 transitions. [2021-12-14 17:11:22,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-14 17:11:22,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:22,837 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] [2021-12-14 17:11:22,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 17:11:23,059 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 [2021-12-14 17:11:23,060 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:23,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:23,060 INFO L85 PathProgramCache]: Analyzing trace with hash -289792324, now seen corresponding path program 1 times [2021-12-14 17:11:23,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:23,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411779821] [2021-12-14 17:11:23,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:23,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:11:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:11:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 17:11:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 17:11:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:11:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 17:11:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 17:11:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 17:11:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 17:11:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 17:11:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 17:11:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 17:11:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 17:11:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 17:11:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 17:11:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-14 17:11:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 17:11:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 17:11:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 17:11:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-14 17:11:23,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:23,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411779821] [2021-12-14 17:11:23,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411779821] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:11:23,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189422854] [2021-12-14 17:11:23,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:23,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:11:23,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:11:23,525 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) [2021-12-14 17:11:23,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 17:11:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:24,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 54 conjunts are in the unsatisfiable core [2021-12-14 17:11:24,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:11:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-14 17:11:24,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:11:24,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189422854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:11:24,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 17:11:24,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 18 [2021-12-14 17:11:24,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128656265] [2021-12-14 17:11:24,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:11:24,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 17:11:24,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:11:24,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 17:11:24,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-12-14 17:11:24,875 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) [2021-12-14 17:11:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:11:25,286 INFO L93 Difference]: Finished difference Result 4605 states and 6291 transitions. [2021-12-14 17:11:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-14 17:11:25,287 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 [2021-12-14 17:11:25,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:11:25,296 INFO L225 Difference]: With dead ends: 4605 [2021-12-14 17:11:25,296 INFO L226 Difference]: Without dead ends: 2333 [2021-12-14 17:11:25,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-12-14 17:11:25,303 INFO L933 BasicCegarLoop]: 1582 mSDtfsCounter, 65 mSDsluCounter, 14195 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 15777 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 [2021-12-14 17:11:25,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 15777 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:11:25,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2021-12-14 17:11:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2309. [2021-12-14 17:11:25,388 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) [2021-12-14 17:11:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3139 transitions. [2021-12-14 17:11:25,396 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3139 transitions. Word has length 197 [2021-12-14 17:11:25,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:11:25,397 INFO L470 AbstractCegarLoop]: Abstraction has 2309 states and 3139 transitions. [2021-12-14 17:11:25,397 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) [2021-12-14 17:11:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3139 transitions. [2021-12-14 17:11:25,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-14 17:11:25,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:11:25,401 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] [2021-12-14 17:11:25,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 17:11:25,616 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 [2021-12-14 17:11:25,616 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:11:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:11:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1264891567, now seen corresponding path program 1 times [2021-12-14 17:11:25,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:11:25,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357812354] [2021-12-14 17:11:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:25,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:11:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 17:11:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:11:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:11:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 17:11:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:11:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 17:11:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:11:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 17:11:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 17:11:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 17:11:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:11:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 17:11:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 17:11:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 17:11:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 17:11:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 17:11:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 17:11:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 17:11:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 17:11:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 17:11:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 17:11:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 17:11:25,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:11:25,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357812354] [2021-12-14 17:11:25,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357812354] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:11:25,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804167838] [2021-12-14 17:11:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:11:25,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:11:25,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:11:25,988 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) [2021-12-14 17:11:25,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 17:11:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:11:26,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 3253 conjuncts, 102 conjunts are in the unsatisfiable core [2021-12-14 17:11:26,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:11:26,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 17:11:26,946 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 [2021-12-14 17:11:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 17:11:26,956 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 [2021-12-14 17:11:27,050 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-14 17:11:27,051 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 [2021-12-14 17:11:27,543 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-14 17:11:27,543 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 [2021-12-14 17:11:27,804 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 [2021-12-14 17:11:28,636 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-14 17:11:28,637 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