./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-loop.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 f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:23:31,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:23:31,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:23:31,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:23:31,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:23:31,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:23:31,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:23:31,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:23:31,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:23:31,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:23:31,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:23:31,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:23:31,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:23:31,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:23:31,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:23:31,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:23:31,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:23:31,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:23:32,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:23:32,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:23:32,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:23:32,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:23:32,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:23:32,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:23:32,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:23:32,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:23:32,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:23:32,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:23:32,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:23:32,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:23:32,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:23:32,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:23:32,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:23:32,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:23:32,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:23:32,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:23:32,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:23:32,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:23:32,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:23:32,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:23:32,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:23:32,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:23:32,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:23:32,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:23:32,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:23:32,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:23:32,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:23:32,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:23:32,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:23:32,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:23:32,062 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:23:32,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:23:32,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:23:32,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:23:32,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:23:32,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:23:32,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:23:32,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:23:32,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:23:32,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:23:32,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:23:32,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:23:32,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:23:32,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:23:32,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:23:32,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:23:32,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:23:32,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:23:32,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:23:32,070 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:23:32,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:23:32,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:23:32,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 [2021-12-28 03:23:32,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:23:32,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:23:32,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:23:32,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:23:32,404 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:23:32,406 INFO L432 ainManager$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-loop.ko.cil.out.i [2021-12-28 03:23:32,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b0f7adc0/a819943a133b484aa1ea2b410e07b4c4/FLAGc18537721 [2021-12-28 03:23:33,145 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:23:33,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2021-12-28 03:23:33,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b0f7adc0/a819943a133b484aa1ea2b410e07b4c4/FLAGc18537721 [2021-12-28 03:23:33,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b0f7adc0/a819943a133b484aa1ea2b410e07b4c4 [2021-12-28 03:23:33,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:23:33,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:23:33,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:23:33,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:23:33,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:23:33,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:23:33" (1/1) ... [2021-12-28 03:23:33,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dff03b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:33, skipping insertion in model container [2021-12-28 03:23:33,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:23:33" (1/1) ... [2021-12-28 03:23:33,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:23:33,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:23:34,695 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-loop.ko.cil.out.i[192897,192910] [2021-12-28 03:23:34,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:23:34,760 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:23:35,136 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-loop.ko.cil.out.i[192897,192910] [2021-12-28 03:23:35,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:23:35,249 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:23:35,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35 WrapperNode [2021-12-28 03:23:35,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:23:35,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:23:35,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:23:35,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:23:35,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,467 INFO L137 Inliner]: procedures = 236, calls = 1201, calls flagged for inlining = 124, calls inlined = 121, statements flattened = 3651 [2021-12-28 03:23:35,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:23:35,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:23:35,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:23:35,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:23:35,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:23:35,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:23:35,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:23:35,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:23:35,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (1/1) ... [2021-12-28 03:23:35,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:23:35,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:23:35,773 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) [2021-12-28 03:23:35,788 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 [2021-12-28 03:23:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-12-28 03:23:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-12-28 03:23:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:23:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:23:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure vfs_fsync [2021-12-28 03:23:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure vfs_fsync [2021-12-28 03:23:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-28 03:23:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-28 03:23:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 03:23:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 03:23:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:23:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:23:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2021-12-28 03:23:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2021-12-28 03:23:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2021-12-28 03:23:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2021-12-28 03:23:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-28 03:23:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-28 03:23:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_xor [2021-12-28 03:23:35,816 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_xor [2021-12-28 03:23:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure invalidate_bdev [2021-12-28 03:23:35,816 INFO L138 BoogieDeclarations]: Found implementation of procedure invalidate_bdev [2021-12-28 03:23:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-28 03:23:35,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-28 03:23:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:23:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:23:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure huge_encode_dev [2021-12-28 03:23:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure huge_encode_dev [2021-12-28 03:23:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure lo_do_transfer [2021-12-28 03:23:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_do_transfer [2021-12-28 03:23:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure loop_sysfs_exit [2021-12-28 03:23:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_sysfs_exit [2021-12-28 03:23:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-12-28 03:23:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-12-28 03:23:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-12-28 03:23:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-12-28 03:23:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 03:23:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 03:23:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure loop_alloc [2021-12-28 03:23:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_alloc [2021-12-28 03:23:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure loop_make_request [2021-12-28 03:23:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_make_request [2021-12-28 03:23:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure __do_lo_send_write [2021-12-28 03:23:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_lo_send_write [2021-12-28 03:23:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure loop_get_status [2021-12-28 03:23:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_get_status [2021-12-28 03:23:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure loop_clr_fd [2021-12-28 03:23:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_clr_fd [2021-12-28 03:23:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:23:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure figure_loop_size [2021-12-28 03:23:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure figure_loop_size [2021-12-28 03:23:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_by_bdev [2021-12-28 03:23:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_by_bdev [2021-12-28 03:23:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:23:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-28 03:23:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-28 03:23:35,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:23:35,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:23:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 03:23:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 03:23:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-28 03:23:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-28 03:23:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-12-28 03:23:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-12-28 03:23:35,824 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 03:23:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 03:23:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_capacity [2021-12-28 03:23:35,825 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_capacity [2021-12-28 03:23:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-12-28 03:23:35,825 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-12-28 03:23:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:23:35,825 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 03:23:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 03:23:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure loop_free [2021-12-28 03:23:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_free [2021-12-28 03:23:35,826 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_none [2021-12-28 03:23:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_none [2021-12-28 03:23:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:23:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure bd_set_size [2021-12-28 03:23:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_set_size [2021-12-28 03:23:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:23:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2021-12-28 03:23:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2021-12-28 03:23:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_set_gfp_mask [2021-12-28 03:23:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_set_gfp_mask [2021-12-28 03:23:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure xor_init [2021-12-28 03:23:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure xor_init [2021-12-28 03:23:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2021-12-28 03:23:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2021-12-28 03:23:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:23:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:23:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:23:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:23:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-12-28 03:23:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-12-28 03:23:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 03:23:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 03:23:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:23:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-28 03:23:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-28 03:23:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure __kmap_atomic [2021-12-28 03:23:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmap_atomic [2021-12-28 03:23:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 03:23:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 03:23:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:23:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 03:23:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 03:23:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:23:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure get_loop_size [2021-12-28 03:23:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure get_loop_size [2021-12-28 03:23:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:23:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-12-28 03:23:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-12-28 03:23:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status [2021-12-28 03:23:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status [2021-12-28 03:23:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:23:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure lo_ioctl [2021-12-28 03:23:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_ioctl [2021-12-28 03:23:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 03:23:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 03:23:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-28 03:23:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-28 03:23:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure loop_release_xfer [2021-12-28 03:23:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_release_xfer [2021-12-28 03:23:35,838 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2021-12-28 03:23:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2021-12-28 03:23:35,840 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2021-12-28 03:23:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2021-12-28 03:23:35,840 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 03:23:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 03:23:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure loop_switch [2021-12-28 03:23:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_switch [2021-12-28 03:23:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_gfp_mask [2021-12-28 03:23:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_gfp_mask [2021-12-28 03:23:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:23:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:23:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-28 03:23:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-28 03:23:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-12-28 03:23:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-12-28 03:23:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:23:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:23:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:23:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 03:23:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 03:23:36,462 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:23:36,464 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:23:37,044 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:23:38,776 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-12-28 03:23:38,777 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-12-28 03:23:38,807 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-28 03:23:38,808 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-28 03:23:39,344 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-28 03:23:39,344 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-28 03:23:39,646 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:23:39,648 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:23:41,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##72: assume !false; [2021-12-28 03:23:41,211 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume false; [2021-12-28 03:23:41,211 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-12-28 03:23:41,211 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-12-28 03:23:41,249 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:23:41,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:23:41,261 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 03:23:41,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:23:41 BoogieIcfgContainer [2021-12-28 03:23:41,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:23:41,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:23:41,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:23:41,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:23:41,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:23:33" (1/3) ... [2021-12-28 03:23:41,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c688ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:23:41, skipping insertion in model container [2021-12-28 03:23:41,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:35" (2/3) ... [2021-12-28 03:23:41,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c688ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:23:41, skipping insertion in model container [2021-12-28 03:23:41,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:23:41" (3/3) ... [2021-12-28 03:23:41,270 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-loop.ko.cil.out.i [2021-12-28 03:23:41,275 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:23:41,275 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:23:41,321 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:23:41,326 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 [2021-12-28 03:23:41,327 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:23:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 810 states have (on average 1.317283950617284) internal successors, (1067), 823 states have internal predecessors, (1067), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) [2021-12-28 03:23:41,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-28 03:23:41,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:41,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:41,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:41,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:41,368 INFO L85 PathProgramCache]: Analyzing trace with hash 325416360, now seen corresponding path program 1 times [2021-12-28 03:23:41,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:41,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100125098] [2021-12-28 03:23:41,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:41,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:23:41,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:41,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100125098] [2021-12-28 03:23:41,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100125098] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:41,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:41,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 03:23:41,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988346049] [2021-12-28 03:23:41,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:41,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:23:41,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:41,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:23:41,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:23:41,761 INFO L87 Difference]: Start difference. First operand has 1098 states, 810 states have (on average 1.317283950617284) internal successors, (1067), 823 states have internal predecessors, (1067), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:23:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:42,134 INFO L93 Difference]: Finished difference Result 3203 states and 4521 transitions. [2021-12-28 03:23:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:23:42,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-28 03:23:42,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:42,169 INFO L225 Difference]: With dead ends: 3203 [2021-12-28 03:23:42,169 INFO L226 Difference]: Without dead ends: 2094 [2021-12-28 03:23:42,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:23:42,187 INFO L933 BasicCegarLoop]: 1834 mSDtfsCounter, 1488 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:42,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1488 Valid, 3244 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:23:42,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2021-12-28 03:23:42,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2091. [2021-12-28 03:23:42,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.311443433029909) internal successors, (2017), 1558 states have internal predecessors, (2017), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2021-12-28 03:23:42,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2878 transitions. [2021-12-28 03:23:42,399 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2878 transitions. Word has length 11 [2021-12-28 03:23:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:42,399 INFO L470 AbstractCegarLoop]: Abstraction has 2091 states and 2878 transitions. [2021-12-28 03:23:42,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:23:42,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2878 transitions. [2021-12-28 03:23:42,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-28 03:23:42,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:42,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:42,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:23:42,414 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:42,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:42,416 INFO L85 PathProgramCache]: Analyzing trace with hash 879957809, now seen corresponding path program 1 times [2021-12-28 03:23:42,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:42,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984645963] [2021-12-28 03:23:42,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:42,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 03:23:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:42,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 03:23:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:23:42,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:42,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984645963] [2021-12-28 03:23:42,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984645963] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:42,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:42,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:23:42,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434159491] [2021-12-28 03:23:42,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:42,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:23:42,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:42,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:23:42,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:23:42,607 INFO L87 Difference]: Start difference. First operand 2091 states and 2878 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 03:23:44,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:44,571 INFO L93 Difference]: Finished difference Result 4515 states and 6297 transitions. [2021-12-28 03:23:44,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:23:44,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2021-12-28 03:23:44,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:44,588 INFO L225 Difference]: With dead ends: 4515 [2021-12-28 03:23:44,588 INFO L226 Difference]: Without dead ends: 2505 [2021-12-28 03:23:44,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:23:44,597 INFO L933 BasicCegarLoop]: 1426 mSDtfsCounter, 518 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 4181 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:44,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 4181 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-28 03:23:44,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-12-28 03:23:44,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2091. [2021-12-28 03:23:44,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.3101430429128738) internal successors, (2015), 1558 states have internal predecessors, (2015), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2021-12-28 03:23:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2876 transitions. [2021-12-28 03:23:44,684 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2876 transitions. Word has length 53 [2021-12-28 03:23:44,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:44,685 INFO L470 AbstractCegarLoop]: Abstraction has 2091 states and 2876 transitions. [2021-12-28 03:23:44,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 03:23:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2876 transitions. [2021-12-28 03:23:44,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-28 03:23:44,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:44,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:44,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:23:44,688 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:44,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:44,689 INFO L85 PathProgramCache]: Analyzing trace with hash -12155950, now seen corresponding path program 1 times [2021-12-28 03:23:44,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:44,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994967156] [2021-12-28 03:23:44,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:44,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:44,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 03:23:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 03:23:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:44,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:44,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:23:44,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:44,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994967156] [2021-12-28 03:23:44,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994967156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:44,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:44,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:23:44,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538586718] [2021-12-28 03:23:44,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:44,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:23:44,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:44,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:23:44,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:23:44,774 INFO L87 Difference]: Start difference. First operand 2091 states and 2876 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 03:23:46,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:46,022 INFO L93 Difference]: Finished difference Result 4588 states and 6382 transitions. [2021-12-28 03:23:46,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:23:46,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2021-12-28 03:23:46,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:46,035 INFO L225 Difference]: With dead ends: 4588 [2021-12-28 03:23:46,036 INFO L226 Difference]: Without dead ends: 2505 [2021-12-28 03:23:46,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:23:46,045 INFO L933 BasicCegarLoop]: 1418 mSDtfsCounter, 1951 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:46,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2104 Valid, 2109 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 03:23:46,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-12-28 03:23:46,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2091. [2021-12-28 03:23:46,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.3088426527958388) internal successors, (2013), 1558 states have internal predecessors, (2013), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2021-12-28 03:23:46,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2874 transitions. [2021-12-28 03:23:46,137 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2874 transitions. Word has length 58 [2021-12-28 03:23:46,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:46,138 INFO L470 AbstractCegarLoop]: Abstraction has 2091 states and 2874 transitions. [2021-12-28 03:23:46,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 03:23:46,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2874 transitions. [2021-12-28 03:23:46,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-28 03:23:46,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:46,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:46,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:23:46,143 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:46,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1269426878, now seen corresponding path program 1 times [2021-12-28 03:23:46,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:46,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971568859] [2021-12-28 03:23:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:46,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:46,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 03:23:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:23:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:46,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:23:46,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:46,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971568859] [2021-12-28 03:23:46,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971568859] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:46,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:46,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:23:46,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324865913] [2021-12-28 03:23:46,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:46,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:23:46,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:46,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:23:46,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:23:46,269 INFO L87 Difference]: Start difference. First operand 2091 states and 2874 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 03:23:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:47,902 INFO L93 Difference]: Finished difference Result 4515 states and 6292 transitions. [2021-12-28 03:23:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:23:47,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2021-12-28 03:23:47,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:47,920 INFO L225 Difference]: With dead ends: 4515 [2021-12-28 03:23:47,920 INFO L226 Difference]: Without dead ends: 2488 [2021-12-28 03:23:47,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:23:47,937 INFO L933 BasicCegarLoop]: 1422 mSDtfsCounter, 518 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 4167 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:47,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 4167 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-28 03:23:47,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2021-12-28 03:23:48,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2074. [2021-12-28 03:23:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 1527 states have (on average 1.3091028159790439) internal successors, (1999), 1547 states have internal predecessors, (1999), 425 states have call successors, (425), 122 states have call predecessors, (425), 121 states have return successors, (428), 421 states have call predecessors, (428), 423 states have call successors, (428) [2021-12-28 03:23:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2852 transitions. [2021-12-28 03:23:48,021 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2852 transitions. Word has length 51 [2021-12-28 03:23:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:48,021 INFO L470 AbstractCegarLoop]: Abstraction has 2074 states and 2852 transitions. [2021-12-28 03:23:48,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 03:23:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2852 transitions. [2021-12-28 03:23:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-28 03:23:48,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:48,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:48,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:23:48,025 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:48,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:48,026 INFO L85 PathProgramCache]: Analyzing trace with hash 481179932, now seen corresponding path program 1 times [2021-12-28 03:23:48,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:48,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813512713] [2021-12-28 03:23:48,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:48,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:48,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:23:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 03:23:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:48,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:23:48,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:48,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813512713] [2021-12-28 03:23:48,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813512713] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:48,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:48,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:23:48,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397456986] [2021-12-28 03:23:48,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:48,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:23:48,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:48,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:23:48,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:23:48,164 INFO L87 Difference]: Start difference. First operand 2074 states and 2852 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 03:23:49,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:49,600 INFO L93 Difference]: Finished difference Result 4514 states and 6290 transitions. [2021-12-28 03:23:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:23:49,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2021-12-28 03:23:49,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:49,615 INFO L225 Difference]: With dead ends: 4514 [2021-12-28 03:23:49,615 INFO L226 Difference]: Without dead ends: 2494 [2021-12-28 03:23:49,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:23:49,625 INFO L933 BasicCegarLoop]: 1411 mSDtfsCounter, 691 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:49,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 3101 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-28 03:23:49,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2021-12-28 03:23:49,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2075. [2021-12-28 03:23:49,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 1528 states have (on average 1.3089005235602094) internal successors, (2000), 1548 states have internal predecessors, (2000), 425 states have call successors, (425), 122 states have call predecessors, (425), 121 states have return successors, (428), 421 states have call predecessors, (428), 423 states have call successors, (428) [2021-12-28 03:23:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2853 transitions. [2021-12-28 03:23:49,714 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2853 transitions. Word has length 56 [2021-12-28 03:23:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:49,715 INFO L470 AbstractCegarLoop]: Abstraction has 2075 states and 2853 transitions. [2021-12-28 03:23:49,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 03:23:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2853 transitions. [2021-12-28 03:23:49,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-28 03:23:49,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:49,719 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] [2021-12-28 03:23:49,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 03:23:49,719 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:49,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:49,720 INFO L85 PathProgramCache]: Analyzing trace with hash -124989242, now seen corresponding path program 1 times [2021-12-28 03:23:49,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:49,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069487496] [2021-12-28 03:23:49,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:49,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:49,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:23:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:23:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:49,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 03:23:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 03:23:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:49,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:23:49,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:49,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069487496] [2021-12-28 03:23:49,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069487496] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:23:49,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401854071] [2021-12-28 03:23:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:49,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:23:49,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:23:49,940 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) [2021-12-28 03:23:49,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:23:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:50,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 03:23:50,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:23:50,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:23:50,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:23:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:23:50,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401854071] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:23:50,889 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:23:50,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2021-12-28 03:23:50,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123733539] [2021-12-28 03:23:50,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:23:50,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-28 03:23:50,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:50,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-28 03:23:50,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-12-28 03:23:50,891 INFO L87 Difference]: Start difference. First operand 2075 states and 2853 transitions. Second operand has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2021-12-28 03:23:54,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:54,596 INFO L93 Difference]: Finished difference Result 4711 states and 6702 transitions. [2021-12-28 03:23:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:23:54,597 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2021-12-28 03:23:54,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:54,610 INFO L225 Difference]: With dead ends: 4711 [2021-12-28 03:23:54,610 INFO L226 Difference]: Without dead ends: 2691 [2021-12-28 03:23:54,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-12-28 03:23:54,617 INFO L933 BasicCegarLoop]: 1352 mSDtfsCounter, 1343 mSDsluCounter, 5381 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 4299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:54,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1505 Valid, 6733 Invalid, 4299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-28 03:23:54,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2021-12-28 03:23:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2093. [2021-12-28 03:23:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 1540 states have (on average 1.3064935064935066) internal successors, (2012), 1560 states have internal predecessors, (2012), 431 states have call successors, (431), 122 states have call predecessors, (431), 121 states have return successors, (434), 427 states have call predecessors, (434), 429 states have call successors, (434) [2021-12-28 03:23:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2877 transitions. [2021-12-28 03:23:54,710 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2877 transitions. Word has length 80 [2021-12-28 03:23:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:54,711 INFO L470 AbstractCegarLoop]: Abstraction has 2093 states and 2877 transitions. [2021-12-28 03:23:54,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2021-12-28 03:23:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2877 transitions. [2021-12-28 03:23:54,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-28 03:23:54,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:54,718 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:54,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 03:23:54,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-28 03:23:54,940 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:54,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:54,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1267895346, now seen corresponding path program 1 times [2021-12-28 03:23:54,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:54,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084458029] [2021-12-28 03:23:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:54,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:23:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:23:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:23:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 03:23:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 03:23:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 03:23:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 03:23:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 03:23:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 03:23:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 03:23:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,340 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-28 03:23:55,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:55,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084458029] [2021-12-28 03:23:55,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084458029] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:23:55,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563050214] [2021-12-28 03:23:55,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:55,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:23:55,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:23:55,343 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) [2021-12-28 03:23:55,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 03:23:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:55,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1838 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 03:23:55,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:23:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 16 proven. 40 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-28 03:23:56,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:23:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-28 03:23:56,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563050214] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:23:56,707 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:23:56,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2021-12-28 03:23:56,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604646127] [2021-12-28 03:23:56,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:23:56,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-28 03:23:56,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:56,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-28 03:23:56,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2021-12-28 03:23:56,709 INFO L87 Difference]: Start difference. First operand 2093 states and 2877 transitions. Second operand has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) [2021-12-28 03:24:01,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:24:01,492 INFO L93 Difference]: Finished difference Result 4735 states and 6735 transitions. [2021-12-28 03:24:01,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 03:24:01,493 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) Word has length 159 [2021-12-28 03:24:01,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:24:01,508 INFO L225 Difference]: With dead ends: 4735 [2021-12-28 03:24:01,508 INFO L226 Difference]: Without dead ends: 2715 [2021-12-28 03:24:01,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2021-12-28 03:24:01,516 INFO L933 BasicCegarLoop]: 1360 mSDtfsCounter, 803 mSDsluCounter, 5877 mSDsCounter, 0 mSdLazyCounter, 3934 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 7237 SdHoareTripleChecker+Invalid, 4317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 3934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-28 03:24:01,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 7237 Invalid, 4317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 3934 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-28 03:24:01,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2021-12-28 03:24:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2117. [2021-12-28 03:24:01,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1556 states have (on average 1.3033419023136248) internal successors, (2028), 1576 states have internal predecessors, (2028), 439 states have call successors, (439), 122 states have call predecessors, (439), 121 states have return successors, (442), 435 states have call predecessors, (442), 437 states have call successors, (442) [2021-12-28 03:24:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2909 transitions. [2021-12-28 03:24:01,627 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2909 transitions. Word has length 159 [2021-12-28 03:24:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:24:01,628 INFO L470 AbstractCegarLoop]: Abstraction has 2117 states and 2909 transitions. [2021-12-28 03:24:01,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) [2021-12-28 03:24:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2909 transitions. [2021-12-28 03:24:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-28 03:24:01,632 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:01,633 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:01,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 03:24:01,839 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,SelfDestructingSolverStorable6 [2021-12-28 03:24:01,840 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:01,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:01,840 INFO L85 PathProgramCache]: Analyzing trace with hash -165761428, now seen corresponding path program 2 times [2021-12-28 03:24:01,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:01,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485383032] [2021-12-28 03:24:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:01,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:24:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 03:24:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 03:24:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 03:24:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 03:24:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 03:24:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 03:24:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 03:24:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 03:24:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 03:24:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 03:24:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-28 03:24:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 03:24:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 03:24:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 03:24:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 03:24:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:02,333 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-28 03:24:02,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:02,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485383032] [2021-12-28 03:24:02,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485383032] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:24:02,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123113974] [2021-12-28 03:24:02,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 03:24:02,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:24:02,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:24:02,335 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) [2021-12-28 03:24:02,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 03:24:02,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-28 03:24:02,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:24:02,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-28 03:24:02,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:24:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2021-12-28 03:24:03,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:24:03,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123113974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:24:03,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:24:03,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-12-28 03:24:03,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003548159] [2021-12-28 03:24:03,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:24:03,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:24:03,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:24:03,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:24:03,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-28 03:24:03,348 INFO L87 Difference]: Start difference. First operand 2117 states and 2909 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 03:24:04,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:24:04,415 INFO L93 Difference]: Finished difference Result 5104 states and 7041 transitions. [2021-12-28 03:24:04,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 03:24:04,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 248 [2021-12-28 03:24:04,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:24:04,438 INFO L225 Difference]: With dead ends: 5104 [2021-12-28 03:24:04,438 INFO L226 Difference]: Without dead ends: 4081 [2021-12-28 03:24:04,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-12-28 03:24:04,445 INFO L933 BasicCegarLoop]: 2734 mSDtfsCounter, 1556 mSDsluCounter, 11864 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 14598 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 03:24:04,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579 Valid, 14598 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 03:24:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2021-12-28 03:24:04,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4027. [2021-12-28 03:24:04,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4027 states, 2956 states have (on average 1.3095399188092016) internal successors, (3871), 2995 states have internal predecessors, (3871), 833 states have call successors, (833), 236 states have call predecessors, (833), 237 states have return successors, (849), 827 states have call predecessors, (849), 831 states have call successors, (849) [2021-12-28 03:24:04,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4027 states to 4027 states and 5553 transitions. [2021-12-28 03:24:04,659 INFO L78 Accepts]: Start accepts. Automaton has 4027 states and 5553 transitions. Word has length 248 [2021-12-28 03:24:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:24:04,660 INFO L470 AbstractCegarLoop]: Abstraction has 4027 states and 5553 transitions. [2021-12-28 03:24:04,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 03:24:04,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4027 states and 5553 transitions. [2021-12-28 03:24:04,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-28 03:24:04,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:04,666 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:04,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 03:24:04,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:24:04,879 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:04,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1712920856, now seen corresponding path program 1 times [2021-12-28 03:24:04,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:04,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022448206] [2021-12-28 03:24:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:04,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:24:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 03:24:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 03:24:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 03:24:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 03:24:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 03:24:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 03:24:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 03:24:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 03:24:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 03:24:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 03:24:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-28 03:24:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 03:24:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 03:24:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-28 03:24:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-28 03:24:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2021-12-28 03:24:05,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:05,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022448206] [2021-12-28 03:24:05,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022448206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:24:05,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:24:05,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:24:05,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107444563] [2021-12-28 03:24:05,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:24:05,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:24:05,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:24:05,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:24:05,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:24:05,375 INFO L87 Difference]: Start difference. First operand 4027 states and 5553 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-28 03:24:09,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:24:15,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:24:16,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:24:16,891 INFO L93 Difference]: Finished difference Result 7785 states and 11433 transitions. [2021-12-28 03:24:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 03:24:16,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 255 [2021-12-28 03:24:16,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:24:16,948 INFO L225 Difference]: With dead ends: 7785 [2021-12-28 03:24:16,948 INFO L226 Difference]: Without dead ends: 7782 [2021-12-28 03:24:16,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-28 03:24:16,955 INFO L933 BasicCegarLoop]: 2793 mSDtfsCounter, 4402 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 4508 mSolverCounterSat, 1684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 6849 SdHoareTripleChecker+Invalid, 6192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1684 IncrementalHoareTripleChecker+Valid, 4508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:24:16,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4870 Valid, 6849 Invalid, 6192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1684 Valid, 4508 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2021-12-28 03:24:16,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7782 states. [2021-12-28 03:24:17,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7782 to 6161. [2021-12-28 03:24:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6161 states, 4507 states have (on average 1.3106279121366762) internal successors, (5907), 4578 states have internal predecessors, (5907), 1285 states have call successors, (1285), 349 states have call predecessors, (1285), 368 states have return successors, (1386), 1289 states have call predecessors, (1386), 1283 states have call successors, (1386) [2021-12-28 03:24:17,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6161 states to 6161 states and 8578 transitions. [2021-12-28 03:24:17,280 INFO L78 Accepts]: Start accepts. Automaton has 6161 states and 8578 transitions. Word has length 255 [2021-12-28 03:24:17,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:24:17,281 INFO L470 AbstractCegarLoop]: Abstraction has 6161 states and 8578 transitions. [2021-12-28 03:24:17,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-28 03:24:17,281 INFO L276 IsEmpty]: Start isEmpty. Operand 6161 states and 8578 transitions. [2021-12-28 03:24:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-28 03:24:17,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:17,287 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:17,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 03:24:17,287 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:17,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:17,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2024634197, now seen corresponding path program 1 times [2021-12-28 03:24:17,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:17,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624856826] [2021-12-28 03:24:17,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:17,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:24:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 03:24:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 03:24:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 03:24:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 03:24:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 03:24:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 03:24:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 03:24:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 03:24:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 03:24:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 03:24:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-28 03:24:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 03:24:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 03:24:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-28 03:24:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-28 03:24:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-28 03:24:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2021-12-28 03:24:17,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:17,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624856826] [2021-12-28 03:24:17,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624856826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:24:17,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:24:17,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:24:17,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291748922] [2021-12-28 03:24:17,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:24:17,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:24:17,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:24:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:24:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:24:17,713 INFO L87 Difference]: Start difference. First operand 6161 states and 8578 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-28 03:24:22,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:24:22,425 INFO L93 Difference]: Finished difference Result 14445 states and 21080 transitions. [2021-12-28 03:24:22,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:24:22,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 254 [2021-12-28 03:24:22,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:24:22,465 INFO L225 Difference]: With dead ends: 14445 [2021-12-28 03:24:22,465 INFO L226 Difference]: Without dead ends: 8391 [2021-12-28 03:24:22,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:24:22,487 INFO L933 BasicCegarLoop]: 1435 mSDtfsCounter, 722 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:24:22,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [876 Valid, 3679 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-28 03:24:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2021-12-28 03:24:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 6804. [2021-12-28 03:24:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6804 states, 4988 states have (on average 1.3235765838011226) internal successors, (6602), 5071 states have internal predecessors, (6602), 1447 states have call successors, (1447), 349 states have call predecessors, (1447), 368 states have return successors, (1586), 1445 states have call predecessors, (1586), 1445 states have call successors, (1586) [2021-12-28 03:24:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6804 states to 6804 states and 9635 transitions. [2021-12-28 03:24:22,903 INFO L78 Accepts]: Start accepts. Automaton has 6804 states and 9635 transitions. Word has length 254 [2021-12-28 03:24:22,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:24:22,903 INFO L470 AbstractCegarLoop]: Abstraction has 6804 states and 9635 transitions. [2021-12-28 03:24:22,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-28 03:24:22,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6804 states and 9635 transitions. [2021-12-28 03:24:22,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-12-28 03:24:22,909 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:22,909 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:22,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 03:24:22,909 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:22,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:22,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1820542204, now seen corresponding path program 1 times [2021-12-28 03:24:22,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:22,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484805928] [2021-12-28 03:24:22,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:22,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:24:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 03:24:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 03:24:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 03:24:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 03:24:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 03:24:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 03:24:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 03:24:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 03:24:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 03:24:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 03:24:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-28 03:24:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 03:24:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 03:24:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 03:24:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-28 03:24:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-28 03:24:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-12-28 03:24:23,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:23,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484805928] [2021-12-28 03:24:23,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484805928] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:24:23,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999801501] [2021-12-28 03:24:23,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:23,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:24:23,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:24:23,276 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) [2021-12-28 03:24:23,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 03:24:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:24,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-28 03:24:24,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:24:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-12-28 03:24:24,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:24:24,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999801501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:24:24,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:24:24,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2021-12-28 03:24:24,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474181433] [2021-12-28 03:24:24,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:24:24,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:24:24,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:24:24,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:24:24,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:24:24,443 INFO L87 Difference]: Start difference. First operand 6804 states and 9635 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 03:24:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:24:24,821 INFO L93 Difference]: Finished difference Result 13611 states and 19278 transitions. [2021-12-28 03:24:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:24:24,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 256 [2021-12-28 03:24:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:24:24,850 INFO L225 Difference]: With dead ends: 13611 [2021-12-28 03:24:24,850 INFO L226 Difference]: Without dead ends: 6793 [2021-12-28 03:24:24,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:24:24,873 INFO L933 BasicCegarLoop]: 1476 mSDtfsCounter, 0 mSDsluCounter, 4418 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5894 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:24:24,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5894 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 03:24:24,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2021-12-28 03:24:25,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6793. [2021-12-28 03:24:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6793 states, 4981 states have (on average 1.3234290303151977) internal successors, (6592), 5063 states have internal predecessors, (6592), 1445 states have call successors, (1445), 347 states have call predecessors, (1445), 366 states have return successors, (1584), 1443 states have call predecessors, (1584), 1443 states have call successors, (1584) [2021-12-28 03:24:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6793 states to 6793 states and 9621 transitions. [2021-12-28 03:24:25,186 INFO L78 Accepts]: Start accepts. Automaton has 6793 states and 9621 transitions. Word has length 256 [2021-12-28 03:24:25,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:24:25,187 INFO L470 AbstractCegarLoop]: Abstraction has 6793 states and 9621 transitions. [2021-12-28 03:24:25,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 03:24:25,187 INFO L276 IsEmpty]: Start isEmpty. Operand 6793 states and 9621 transitions. [2021-12-28 03:24:25,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-12-28 03:24:25,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:25,195 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:25,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 03:24:25,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:24:25,419 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:25,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1402142028, now seen corresponding path program 1 times [2021-12-28 03:24:25,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:25,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000849765] [2021-12-28 03:24:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:25,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:24:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 03:24:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 03:24:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:24:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 03:24:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 03:24:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:24:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 03:24:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 03:24:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:24:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 03:24:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-28 03:24:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:24:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 03:24:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-28 03:24:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:24:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-28 03:24:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-28 03:24:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:24:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-28 03:24:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-28 03:24:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:24:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:24:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:24:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:24:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-28 03:24:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-12-28 03:24:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-28 03:24:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-28 03:24:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 15 proven. 186 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2021-12-28 03:24:26,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:26,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000849765] [2021-12-28 03:24:26,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000849765] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:24:26,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927508352] [2021-12-28 03:24:26,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:26,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:24:26,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:24:26,395 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:24:26,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process