./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:44:40,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:44:40,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:44:40,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:44:40,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:44:40,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:44:40,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:44:40,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:44:40,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:44:40,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:44:40,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:44:40,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:44:40,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:44:40,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:44:40,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:44:40,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:44:40,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:44:40,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:44:40,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:44:40,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:44:40,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:44:40,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:44:40,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:44:40,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:44:40,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:44:40,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:44:40,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:44:40,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:44:40,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:44:40,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:44:40,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:44:40,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:44:40,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:44:40,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:44:40,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:44:40,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:44:40,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:44:40,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:44:40,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:44:40,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:44:40,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:44:40,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:44:40,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:44:40,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:44:40,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:44:40,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:44:40,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:44:40,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:44:40,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:44:40,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:44:40,269 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:44:40,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:44:40,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:44:40,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:44:40,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:44:40,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:44:40,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:44:40,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:44:40,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:44:40,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:44:40,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:44:40,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:44:40,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:44:40,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:44:40,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:44:40,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:44:40,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:44:40,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:44:40,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:44:40,273 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:44:40,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:44:40,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:44:40,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:44:40,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 [2021-12-21 16:44:40,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:44:40,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:44:40,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:44:40,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:44:40,494 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:44:40,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-12-21 16:44:40,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18458de6/615738faaaf641c08c4b89b591662d4a/FLAG1dd192598 [2021-12-21 16:44:41,080 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:44:41,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-12-21 16:44:41,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18458de6/615738faaaf641c08c4b89b591662d4a/FLAG1dd192598 [2021-12-21 16:44:41,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18458de6/615738faaaf641c08c4b89b591662d4a [2021-12-21 16:44:41,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:44:41,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:44:41,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:44:41,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:44:41,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:44:41,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:44:41" (1/1) ... [2021-12-21 16:44:41,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f6646d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:41, skipping insertion in model container [2021-12-21 16:44:41,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:44:41" (1/1) ... [2021-12-21 16:44:41,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:44:41,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:44:42,270 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2021-12-21 16:44:42,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:44:42,357 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:44:42,561 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2021-12-21 16:44:42,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:44:42,688 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:44:42,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42 WrapperNode [2021-12-21 16:44:42,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:44:42,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:44:42,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:44:42,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:44:42,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:42,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:42,896 INFO L137 Inliner]: procedures = 236, calls = 1587, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 4121 [2021-12-21 16:44:42,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:44:42,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:44:42,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:44:42,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:44:42,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:42,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:42,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:42,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:43,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:43,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:43,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:43,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:44:43,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:44:43,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:44:43,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:44:43,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (1/1) ... [2021-12-21 16:44:43,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:44:43,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:44:43,102 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) [2021-12-21 16:44:43,152 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 [2021-12-21 16:44:43,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2021-12-21 16:44:43,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2021-12-21 16:44:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:44:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:44:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 16:44:43,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 16:44:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:44:43,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:44:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:44:43,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:44:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-21 16:44:43,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-21 16:44:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2021-12-21 16:44:43,178 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2021-12-21 16:44:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 16:44:43,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 16:44:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-21 16:44:43,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-21 16:44:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-21 16:44:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-21 16:44:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:44:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:44:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2021-12-21 16:44:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2021-12-21 16:44:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:44:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:44:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write_1bit [2021-12-21 16:44:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write_1bit [2021-12-21 16:44:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 16:44:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 16:44:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-21 16:44:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-21 16:44:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 16:44:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 16:44:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-21 16:44:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-21 16:44:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-21 16:44:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-21 16:44:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:44:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:44:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:44:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:44:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-21 16:44:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-21 16:44:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 16:44:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 16:44:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 16:44:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 16:44:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-21 16:44:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-21 16:44:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-12-21 16:44:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-12-21 16:44:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2021-12-21 16:44:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2021-12-21 16:44:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-12-21 16:44:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-12-21 16:44:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:44:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-21 16:44:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-21 16:44:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:44:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 16:44:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 16:44:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-21 16:44:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-21 16:44:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-21 16:44:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-21 16:44:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-21 16:44:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-21 16:44:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 16:44:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 16:44:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:44:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:44:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-21 16:44:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-21 16:44:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read_1bit [2021-12-21 16:44:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read_1bit [2021-12-21 16:44:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:44:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:44:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2021-12-21 16:44:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2021-12-21 16:44:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-21 16:44:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-21 16:44:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 16:44:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 16:44:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2021-12-21 16:44:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2021-12-21 16:44:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write [2021-12-21 16:44:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write [2021-12-21 16:44:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 16:44:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 16:44:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2021-12-21 16:44:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2021-12-21 16:44:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:44:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 16:44:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 16:44:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-21 16:44:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-21 16:44:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-21 16:44:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-21 16:44:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:44:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2021-12-21 16:44:43,188 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2021-12-21 16:44:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:44:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2021-12-21 16:44:43,188 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2021-12-21 16:44:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 16:44:43,188 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 16:44:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 16:44:43,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 16:44:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 16:44:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 16:44:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2021-12-21 16:44:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2021-12-21 16:44:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 16:44:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 16:44:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-12-21 16:44:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-12-21 16:44:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:44:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:44:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:44:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:44:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:44:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2021-12-21 16:44:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2021-12-21 16:44:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-12-21 16:44:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-12-21 16:44:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:44:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:44:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:44:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:44:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-12-21 16:44:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-12-21 16:44:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-21 16:44:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-21 16:44:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:44:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:44:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:44:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-21 16:44:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-21 16:44:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-21 16:44:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-21 16:44:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-21 16:44:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-21 16:44:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-12-21 16:44:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-12-21 16:44:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read [2021-12-21 16:44:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read [2021-12-21 16:44:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-21 16:44:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-21 16:44:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2021-12-21 16:44:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2021-12-21 16:44:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-21 16:44:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-21 16:44:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-21 16:44:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-21 16:44:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 16:44:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 16:44:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:44:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:44:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:44:43,676 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:44:43,678 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:44:43,938 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:44:45,653 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:44:45,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:44:45,664 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:44:45,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:44:45 BoogieIcfgContainer [2021-12-21 16:44:45,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:44:45,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:44:45,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:44:45,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:44:45,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:44:41" (1/3) ... [2021-12-21 16:44:45,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1899fa08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:44:45, skipping insertion in model container [2021-12-21 16:44:45,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:42" (2/3) ... [2021-12-21 16:44:45,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1899fa08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:44:45, skipping insertion in model container [2021-12-21 16:44:45,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:44:45" (3/3) ... [2021-12-21 16:44:45,672 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-12-21 16:44:45,675 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:44:45,675 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:44:45,706 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:44:45,710 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 [2021-12-21 16:44:45,711 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:44:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 1426 states, 1023 states have (on average 1.370478983382209) internal successors, (1402), 1046 states have internal predecessors, (1402), 330 states have call successors, (330), 72 states have call predecessors, (330), 71 states have return successors, (323), 317 states have call predecessors, (323), 323 states have call successors, (323) [2021-12-21 16:44:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-21 16:44:45,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:45,769 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:45,770 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:45,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1713782391, now seen corresponding path program 1 times [2021-12-21 16:44:45,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:45,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070453210] [2021-12-21 16:44:45,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:45,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:44:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:44:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 16:44:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 16:44:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 16:44:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 16:44:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 16:44:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 16:44:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-21 16:44:46,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:46,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070453210] [2021-12-21 16:44:46,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070453210] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:46,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:46,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:44:46,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687269594] [2021-12-21 16:44:46,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:46,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:44:46,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:44:46,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:44:46,507 INFO L87 Difference]: Start difference. First operand has 1426 states, 1023 states have (on average 1.370478983382209) internal successors, (1402), 1046 states have internal predecessors, (1402), 330 states have call successors, (330), 72 states have call predecessors, (330), 71 states have return successors, (323), 317 states have call predecessors, (323), 323 states have call successors, (323) Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-21 16:44:49,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:44:49,727 INFO L93 Difference]: Finished difference Result 2888 states and 4208 transitions. [2021-12-21 16:44:49,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 16:44:49,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 148 [2021-12-21 16:44:49,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:44:49,749 INFO L225 Difference]: With dead ends: 2888 [2021-12-21 16:44:49,749 INFO L226 Difference]: Without dead ends: 1445 [2021-12-21 16:44:49,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:44:49,761 INFO L933 BasicCegarLoop]: 1874 mSDtfsCounter, 1174 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 1237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 4838 SdHoareTripleChecker+Invalid, 3621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1237 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:44:49,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 4838 Invalid, 3621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1237 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-21 16:44:49,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-12-21 16:44:49,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1404. [2021-12-21 16:44:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1010 states have (on average 1.3613861386138615) internal successors, (1375), 1024 states have internal predecessors, (1375), 323 states have call successors, (323), 71 states have call predecessors, (323), 70 states have return successors, (322), 316 states have call predecessors, (322), 322 states have call successors, (322) [2021-12-21 16:44:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2020 transitions. [2021-12-21 16:44:49,870 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2020 transitions. Word has length 148 [2021-12-21 16:44:49,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:44:49,871 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 2020 transitions. [2021-12-21 16:44:49,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-21 16:44:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2020 transitions. [2021-12-21 16:44:49,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-21 16:44:49,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:49,876 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:49,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:44:49,877 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:49,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:49,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1808379503, now seen corresponding path program 1 times [2021-12-21 16:44:49,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:49,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548996966] [2021-12-21 16:44:49,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:49,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:44:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:44:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 16:44:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 16:44:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 16:44:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 16:44:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 16:44:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 16:44:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-21 16:44:50,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:50,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548996966] [2021-12-21 16:44:50,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548996966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:50,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:50,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:44:50,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873956592] [2021-12-21 16:44:50,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:50,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:44:50,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:50,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:44:50,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:44:50,180 INFO L87 Difference]: Start difference. First operand 1404 states and 2020 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 16:44:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:44:56,405 INFO L93 Difference]: Finished difference Result 4258 states and 6144 transitions. [2021-12-21 16:44:56,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-21 16:44:56,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 148 [2021-12-21 16:44:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:44:56,421 INFO L225 Difference]: With dead ends: 4258 [2021-12-21 16:44:56,421 INFO L226 Difference]: Without dead ends: 2874 [2021-12-21 16:44:56,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-21 16:44:56,433 INFO L933 BasicCegarLoop]: 2053 mSDtfsCounter, 3887 mSDsluCounter, 7483 mSDsCounter, 0 mSdLazyCounter, 5690 mSolverCounterSat, 2741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4133 SdHoareTripleChecker+Valid, 9536 SdHoareTripleChecker+Invalid, 8431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2741 IncrementalHoareTripleChecker+Valid, 5690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-21 16:44:56,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4133 Valid, 9536 Invalid, 8431 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2741 Valid, 5690 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-21 16:44:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2021-12-21 16:44:56,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2782. [2021-12-21 16:44:56,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2003 states have (on average 1.361957064403395) internal successors, (2728), 2035 states have internal predecessors, (2728), 638 states have call successors, (638), 141 states have call predecessors, (638), 140 states have return successors, (637), 621 states have call predecessors, (637), 637 states have call successors, (637) [2021-12-21 16:44:56,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 4003 transitions. [2021-12-21 16:44:56,571 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 4003 transitions. Word has length 148 [2021-12-21 16:44:56,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:44:56,572 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 4003 transitions. [2021-12-21 16:44:56,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 16:44:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 4003 transitions. [2021-12-21 16:44:56,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-21 16:44:56,579 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:56,579 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:56,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:44:56,580 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:56,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:56,580 INFO L85 PathProgramCache]: Analyzing trace with hash -118361159, now seen corresponding path program 1 times [2021-12-21 16:44:56,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:56,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162865893] [2021-12-21 16:44:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:56,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:44:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:44:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 16:44:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:44:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 16:44:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 16:44:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 16:44:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 16:44:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 16:44:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-21 16:44:56,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:56,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162865893] [2021-12-21 16:44:56,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162865893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:56,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:56,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 16:44:56,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328187483] [2021-12-21 16:44:56,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:56,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:44:56,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:56,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:44:56,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:44:56,894 INFO L87 Difference]: Start difference. First operand 2782 states and 4003 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-21 16:45:01,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:01,482 INFO L93 Difference]: Finished difference Result 8027 states and 11557 transitions. [2021-12-21 16:45:01,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 16:45:01,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-21 16:45:01,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:01,505 INFO L225 Difference]: With dead ends: 8027 [2021-12-21 16:45:01,505 INFO L226 Difference]: Without dead ends: 5265 [2021-12-21 16:45:01,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-21 16:45:01,517 INFO L933 BasicCegarLoop]: 2021 mSDtfsCounter, 3520 mSDsluCounter, 3536 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 2560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3727 SdHoareTripleChecker+Valid, 5557 SdHoareTripleChecker+Invalid, 5666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2560 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:01,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3727 Valid, 5557 Invalid, 5666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2560 Valid, 3106 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 16:45:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5265 states. [2021-12-21 16:45:01,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5265 to 5097. [2021-12-21 16:45:01,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 3675 states have (on average 1.3610884353741497) internal successors, (5002), 3731 states have internal predecessors, (5002), 1156 states have call successors, (1156), 266 states have call predecessors, (1156), 265 states have return successors, (1163), 1127 states have call predecessors, (1163), 1155 states have call successors, (1163) [2021-12-21 16:45:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 7321 transitions. [2021-12-21 16:45:01,670 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 7321 transitions. Word has length 161 [2021-12-21 16:45:01,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:01,670 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 7321 transitions. [2021-12-21 16:45:01,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-21 16:45:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 7321 transitions. [2021-12-21 16:45:01,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-21 16:45:01,675 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:01,676 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:01,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:45:01,676 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:01,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:01,677 INFO L85 PathProgramCache]: Analyzing trace with hash -650661693, now seen corresponding path program 1 times [2021-12-21 16:45:01,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:01,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620385082] [2021-12-21 16:45:01,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:01,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:45:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:45:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 16:45:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-21 16:45:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-21 16:45:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 16:45:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-21 16:45:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 16:45:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-21 16:45:01,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:01,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620385082] [2021-12-21 16:45:02,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620385082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:02,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:02,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:45:02,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579046409] [2021-12-21 16:45:02,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:02,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:45:02,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:02,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:45:02,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:45:02,002 INFO L87 Difference]: Start difference. First operand 5097 states and 7321 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 16:45:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:07,691 INFO L93 Difference]: Finished difference Result 15600 states and 22448 transitions. [2021-12-21 16:45:07,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-21 16:45:07,694 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 149 [2021-12-21 16:45:07,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:07,739 INFO L225 Difference]: With dead ends: 15600 [2021-12-21 16:45:07,740 INFO L226 Difference]: Without dead ends: 10523 [2021-12-21 16:45:07,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-21 16:45:07,760 INFO L933 BasicCegarLoop]: 2030 mSDtfsCounter, 3899 mSDsluCounter, 6712 mSDsCounter, 0 mSdLazyCounter, 4742 mSolverCounterSat, 2748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 8742 SdHoareTripleChecker+Invalid, 7490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2748 IncrementalHoareTripleChecker+Valid, 4742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:07,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4146 Valid, 8742 Invalid, 7490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2748 Valid, 4742 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-21 16:45:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10523 states. [2021-12-21 16:45:08,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10523 to 10177. [2021-12-21 16:45:08,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10177 states, 7343 states have (on average 1.3607517363475419) internal successors, (9992), 7453 states have internal predecessors, (9992), 2302 states have call successors, (2302), 532 states have call predecessors, (2302), 531 states have return successors, (2317), 2247 states have call predecessors, (2317), 2301 states have call successors, (2317) [2021-12-21 16:45:08,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10177 states to 10177 states and 14611 transitions. [2021-12-21 16:45:08,082 INFO L78 Accepts]: Start accepts. Automaton has 10177 states and 14611 transitions. Word has length 149 [2021-12-21 16:45:08,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:08,082 INFO L470 AbstractCegarLoop]: Abstraction has 10177 states and 14611 transitions. [2021-12-21 16:45:08,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 16:45:08,083 INFO L276 IsEmpty]: Start isEmpty. Operand 10177 states and 14611 transitions. [2021-12-21 16:45:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-21 16:45:08,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:08,087 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:08,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:45:08,087 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:08,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:08,088 INFO L85 PathProgramCache]: Analyzing trace with hash 926867284, now seen corresponding path program 1 times [2021-12-21 16:45:08,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:08,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650678954] [2021-12-21 16:45:08,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:08,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:45:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:45:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-21 16:45:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-21 16:45:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 16:45:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 16:45:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 16:45:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-21 16:45:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-21 16:45:08,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:08,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650678954] [2021-12-21 16:45:08,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650678954] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:08,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:08,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:45:08,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850387632] [2021-12-21 16:45:08,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:08,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:45:08,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:08,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:45:08,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:45:08,451 INFO L87 Difference]: Start difference. First operand 10177 states and 14611 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 16:45:14,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:14,498 INFO L93 Difference]: Finished difference Result 31189 states and 44840 transitions. [2021-12-21 16:45:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-21 16:45:14,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 150 [2021-12-21 16:45:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:14,580 INFO L225 Difference]: With dead ends: 31189 [2021-12-21 16:45:14,580 INFO L226 Difference]: Without dead ends: 21032 [2021-12-21 16:45:14,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-21 16:45:14,625 INFO L933 BasicCegarLoop]: 2021 mSDtfsCounter, 3906 mSDsluCounter, 7391 mSDsCounter, 0 mSdLazyCounter, 5602 mSolverCounterSat, 2756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 9412 SdHoareTripleChecker+Invalid, 8358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2756 IncrementalHoareTripleChecker+Valid, 5602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:14,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4154 Valid, 9412 Invalid, 8358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2756 Valid, 5602 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-21 16:45:14,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21032 states. [2021-12-21 16:45:15,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21032 to 20346. [2021-12-21 16:45:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20346 states, 14688 states have (on average 1.3602941176470589) internal successors, (19980), 14904 states have internal predecessors, (19980), 4592 states have call successors, (4592), 1066 states have call predecessors, (4592), 1065 states have return successors, (4623), 4487 states have call predecessors, (4623), 4591 states have call successors, (4623) [2021-12-21 16:45:15,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20346 states to 20346 states and 29195 transitions. [2021-12-21 16:45:15,313 INFO L78 Accepts]: Start accepts. Automaton has 20346 states and 29195 transitions. Word has length 150 [2021-12-21 16:45:15,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:15,314 INFO L470 AbstractCegarLoop]: Abstraction has 20346 states and 29195 transitions. [2021-12-21 16:45:15,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 16:45:15,315 INFO L276 IsEmpty]: Start isEmpty. Operand 20346 states and 29195 transitions. [2021-12-21 16:45:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-21 16:45:15,320 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:15,320 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:15,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:45:15,320 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:15,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1661326746, now seen corresponding path program 1 times [2021-12-21 16:45:15,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:15,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805011328] [2021-12-21 16:45:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:15,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:45:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:45:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 16:45:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:45:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:45:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 16:45:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 16:45:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:45:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-21 16:45:15,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:15,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805011328] [2021-12-21 16:45:15,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805011328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:15,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:15,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:45:15,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156463468] [2021-12-21 16:45:15,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:15,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:45:15,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:15,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:45:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:45:15,639 INFO L87 Difference]: Start difference. First operand 20346 states and 29195 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 16:45:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:21,965 INFO L93 Difference]: Finished difference Result 62216 states and 89366 transitions. [2021-12-21 16:45:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-21 16:45:21,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 151 [2021-12-21 16:45:21,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:22,108 INFO L225 Difference]: With dead ends: 62216 [2021-12-21 16:45:22,109 INFO L226 Difference]: Without dead ends: 41890 [2021-12-21 16:45:22,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-21 16:45:22,174 INFO L933 BasicCegarLoop]: 2024 mSDtfsCounter, 3907 mSDsluCounter, 7401 mSDsCounter, 0 mSdLazyCounter, 5617 mSolverCounterSat, 2754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4153 SdHoareTripleChecker+Valid, 9425 SdHoareTripleChecker+Invalid, 8371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2754 IncrementalHoareTripleChecker+Valid, 5617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:22,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4153 Valid, 9425 Invalid, 8371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2754 Valid, 5617 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-21 16:45:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41890 states. [2021-12-21 16:45:23,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41890 to 40541. [2021-12-21 16:45:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40541 states, 29271 states have (on average 1.359605069864371) internal successors, (39797), 29693 states have internal predecessors, (39797), 9138 states have call successors, (9138), 2132 states have call predecessors, (9138), 2131 states have return successors, (9201), 8937 states have call predecessors, (9201), 9137 states have call successors, (9201) [2021-12-21 16:45:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40541 states to 40541 states and 58136 transitions. [2021-12-21 16:45:23,737 INFO L78 Accepts]: Start accepts. Automaton has 40541 states and 58136 transitions. Word has length 151 [2021-12-21 16:45:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:23,737 INFO L470 AbstractCegarLoop]: Abstraction has 40541 states and 58136 transitions. [2021-12-21 16:45:23,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 16:45:23,738 INFO L276 IsEmpty]: Start isEmpty. Operand 40541 states and 58136 transitions. [2021-12-21 16:45:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-21 16:45:23,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:23,742 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:23,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:45:23,743 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:23,743 INFO L85 PathProgramCache]: Analyzing trace with hash -160540101, now seen corresponding path program 1 times [2021-12-21 16:45:23,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:23,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232925500] [2021-12-21 16:45:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:23,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:45:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:45:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:23,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:45:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:45:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 16:45:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 16:45:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 16:45:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 16:45:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 16:45:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-21 16:45:24,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:24,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232925500] [2021-12-21 16:45:24,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232925500] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 16:45:24,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730987709] [2021-12-21 16:45:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:24,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:45:24,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:45:24,212 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) [2021-12-21 16:45:24,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 16:45:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2325 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 16:45:24,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:45:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-21 16:45:25,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:45:25,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730987709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:25,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 16:45:25,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2021-12-21 16:45:25,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941470357] [2021-12-21 16:45:25,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:25,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:45:25,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:25,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:45:25,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-21 16:45:25,085 INFO L87 Difference]: Start difference. First operand 40541 states and 58136 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-21 16:45:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:26,892 INFO L93 Difference]: Finished difference Result 121583 states and 176582 transitions. [2021-12-21 16:45:26,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:45:26,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-21 16:45:26,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:27,252 INFO L225 Difference]: With dead ends: 121583 [2021-12-21 16:45:27,252 INFO L226 Difference]: Without dead ends: 81062 [2021-12-21 16:45:27,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-21 16:45:27,504 INFO L933 BasicCegarLoop]: 2382 mSDtfsCounter, 1958 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 4321 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:27,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1958 Valid, 4321 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:45:27,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81062 states. [2021-12-21 16:45:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81062 to 81059. [2021-12-21 16:45:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81059 states, 58529 states have (on average 1.3469049531001727) internal successors, (78833), 59373 states have internal predecessors, (78833), 18268 states have call successors, (18268), 4262 states have call predecessors, (18268), 4261 states have return successors, (19221), 17867 states have call predecessors, (19221), 18267 states have call successors, (19221) [2021-12-21 16:45:30,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81059 states to 81059 states and 116322 transitions. [2021-12-21 16:45:30,177 INFO L78 Accepts]: Start accepts. Automaton has 81059 states and 116322 transitions. Word has length 161 [2021-12-21 16:45:30,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:30,177 INFO L470 AbstractCegarLoop]: Abstraction has 81059 states and 116322 transitions. [2021-12-21 16:45:30,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-21 16:45:30,178 INFO L276 IsEmpty]: Start isEmpty. Operand 81059 states and 116322 transitions. [2021-12-21 16:45:30,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-21 16:45:30,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:30,182 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:45:30,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-21 16:45:30,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:45:30,395 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:30,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash 87606393, now seen corresponding path program 1 times [2021-12-21 16:45:30,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:30,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785454551] [2021-12-21 16:45:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:30,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:45:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:45:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:45:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:45:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 16:45:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 16:45:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 16:45:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 16:45:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 16:45:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:30,960 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-21 16:45:30,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:30,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785454551] [2021-12-21 16:45:30,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785454551] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 16:45:30,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515172462] [2021-12-21 16:45:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:30,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:45:30,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:45:30,963 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) [2021-12-21 16:45:30,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 16:45:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:31,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 16:45:31,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:45:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-21 16:45:31,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:45:31,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515172462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:31,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 16:45:31,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-12-21 16:45:31,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398437447] [2021-12-21 16:45:31,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:31,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:45:31,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:31,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:45:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-21 16:45:31,837 INFO L87 Difference]: Start difference. First operand 81059 states and 116322 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16)