./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-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.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 985d0b4f5410b7b86e22865d3848eb73c5be61726c7bc3b3417d51bbad9e6359 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 07:16:09,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 07:16:09,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 07:16:09,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 07:16:09,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 07:16:09,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 07:16:09,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 07:16:09,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 07:16:09,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 07:16:09,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 07:16:09,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 07:16:09,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 07:16:09,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 07:16:09,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 07:16:09,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 07:16:09,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 07:16:09,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 07:16:09,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 07:16:09,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 07:16:09,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 07:16:09,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 07:16:09,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 07:16:09,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 07:16:09,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 07:16:09,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 07:16:09,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 07:16:09,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 07:16:09,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 07:16:09,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 07:16:09,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 07:16:09,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 07:16:09,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 07:16:09,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 07:16:09,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 07:16:09,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 07:16:09,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 07:16:09,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 07:16:09,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 07:16:09,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 07:16:09,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 07:16:09,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 07:16:09,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 07:16:09,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 07:16:09,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 07:16:09,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 07:16:09,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 07:16:09,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 07:16:09,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 07:16:09,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 07:16:09,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 07:16:09,233 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 07:16:09,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 07:16:09,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 07:16:09,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 07:16:09,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 07:16:09,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 07:16:09,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 07:16:09,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 07:16:09,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 07:16:09,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 07:16:09,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 07:16:09,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 07:16:09,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 07:16:09,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 07:16:09,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 07:16:09,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 07:16:09,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 07:16:09,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 07:16:09,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 07:16:09,237 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 07:16:09,238 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 07:16:09,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 07:16:09,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 07:16:09,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 985d0b4f5410b7b86e22865d3848eb73c5be61726c7bc3b3417d51bbad9e6359 [2021-12-18 07:16:09,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 07:16:09,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 07:16:09,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 07:16:09,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 07:16:09,455 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 07:16:09,456 INFO L432 ainManager$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-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2021-12-18 07:16:09,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2e85f5c/4ce42035e0c145549416bb53a77dd84c/FLAGdb026f3a8 [2021-12-18 07:16:10,339 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 07:16:10,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2021-12-18 07:16:10,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2e85f5c/4ce42035e0c145549416bb53a77dd84c/FLAGdb026f3a8 [2021-12-18 07:16:10,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2e85f5c/4ce42035e0c145549416bb53a77dd84c [2021-12-18 07:16:10,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 07:16:10,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 07:16:10,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 07:16:10,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 07:16:10,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 07:16:10,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:16:10" (1/1) ... [2021-12-18 07:16:10,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eedba0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:10, skipping insertion in model container [2021-12-18 07:16:10,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:16:10" (1/1) ... [2021-12-18 07:16:10,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 07:16:10,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 07:16:13,674 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-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i[381757,381770] [2021-12-18 07:16:13,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 07:16:13,891 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 07:16:14,460 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-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i[381757,381770] [2021-12-18 07:16:14,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 07:16:14,712 INFO L208 MainTranslator]: Completed translation [2021-12-18 07:16:14,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14 WrapperNode [2021-12-18 07:16:14,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 07:16:14,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 07:16:14,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 07:16:14,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 07:16:14,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:14,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,069 INFO L137 Inliner]: procedures = 504, calls = 2646, calls flagged for inlining = 220, calls inlined = 169, statements flattened = 5574 [2021-12-18 07:16:15,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 07:16:15,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 07:16:15,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 07:16:15,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 07:16:15,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 07:16:15,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 07:16:15,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 07:16:15,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 07:16:15,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (1/1) ... [2021-12-18 07:16:15,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 07:16:15,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:16:15,392 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) [2021-12-18 07:16:15,412 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 [2021-12-18 07:16:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_settings [2021-12-18 07:16:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_settings [2021-12-18 07:16:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-18 07:16:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-18 07:16:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-12-18 07:16:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-12-18 07:16:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_byte [2021-12-18 07:16:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_byte [2021-12-18 07:16:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_work_func_t [2021-12-18 07:16:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_work_func_t [2021-12-18 07:16:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 07:16:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 07:16:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-18 07:16:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-18 07:16:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 07:16:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 07:16:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_get_settings [2021-12-18 07:16:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_get_settings [2021-12-18 07:16:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 07:16:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 07:16:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_rx_vlan_en [2021-12-18 07:16:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_rx_vlan_en [2021-12-18 07:16:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mmd_write [2021-12-18 07:16:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mmd_write [2021-12-18 07:16:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_disconnect [2021-12-18 07:16:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_disconnect [2021-12-18 07:16:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-18 07:16:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-18 07:16:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2021-12-18 07:16:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2021-12-18 07:16:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-18 07:16:15,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-18 07:16:15,437 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_speed [2021-12-18 07:16:15,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_speed [2021-12-18 07:16:15,437 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-18 07:16:15,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-18 07:16:15,437 INFO L130 BoogieDeclarations]: Found specification of procedure pla_ocp_read [2021-12-18 07:16:15,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pla_ocp_read [2021-12-18 07:16:15,438 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 07:16:15,438 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 07:16:15,438 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-12-18 07:16:15,438 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-12-18 07:16:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 07:16:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 07:16:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_nic_reset [2021-12-18 07:16:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_nic_reset [2021-12-18 07:16:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_eee_en [2021-12-18 07:16:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_eee_en [2021-12-18 07:16:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_reg_read [2021-12-18 07:16:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_reg_read [2021-12-18 07:16:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 07:16:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 07:16:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_eee_plus [2021-12-18 07:16:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_eee_plus [2021-12-18 07:16:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_disable_aldps [2021-12-18 07:16:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_disable_aldps [2021-12-18 07:16:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_dword [2021-12-18 07:16:15,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_dword [2021-12-18 07:16:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_adv_to_mmd_eee_adv_t [2021-12-18 07:16:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_adv_to_mmd_eee_adv_t [2021-12-18 07:16:15,444 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-18 07:16:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-18 07:16:15,444 INFO L130 BoogieDeclarations]: Found specification of procedure pla_ocp_write [2021-12-18 07:16:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pla_ocp_write [2021-12-18 07:16:15,444 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 07:16:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 07:16:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 07:16:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 07:16:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 07:16:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 07:16:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 07:16:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 07:16:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_get_speed [2021-12-18 07:16:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_get_speed [2021-12-18 07:16:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 07:16:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 07:16:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_dword [2021-12-18 07:16:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_dword [2021-12-18 07:16:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 07:16:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mdio_write [2021-12-18 07:16:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mdio_write [2021-12-18 07:16:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-18 07:16:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-18 07:16:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_set_rx_early_timeout [2021-12-18 07:16:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_set_rx_early_timeout [2021-12-18 07:16:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 07:16:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 07:16:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_submit_rx [2021-12-18 07:16:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_submit_rx [2021-12-18 07:16:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 07:16:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 07:16:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 07:16:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 07:16:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_enable_fc [2021-12-18 07:16:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_enable_fc [2021-12-18 07:16:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 07:16:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_probe [2021-12-18 07:16:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_probe [2021-12-18 07:16:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 07:16:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 07:16:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 07:16:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-18 07:16:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-18 07:16:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 07:16:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 07:16:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 07:16:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_node [2021-12-18 07:16:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_node [2021-12-18 07:16:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-18 07:16:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-18 07:16:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-12-18 07:16:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-12-18 07:16:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-18 07:16:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-18 07:16:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_features [2021-12-18 07:16:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_features [2021-12-18 07:16:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 07:16:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 07:16:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_eee_en [2021-12-18 07:16:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_eee_en [2021-12-18 07:16:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_open [2021-12-18 07:16:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_open [2021-12-18 07:16:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-18 07:16:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-18 07:16:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2021-12-18 07:16:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2021-12-18 07:16:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_runtime_suspend_enable [2021-12-18 07:16:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_runtime_suspend_enable [2021-12-18 07:16:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 07:16:15,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 07:16:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_power_cut_en [2021-12-18 07:16:15,456 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_power_cut_en [2021-12-18 07:16:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure generic_ocp_read [2021-12-18 07:16:15,456 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_ocp_read [2021-12-18 07:16:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-18 07:16:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-18 07:16:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_ethtool_get_eee [2021-12-18 07:16:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_ethtool_get_eee [2021-12-18 07:16:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail [2021-12-18 07:16:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail [2021-12-18 07:16:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 07:16:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_tally_reset [2021-12-18 07:16:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_tally_reset [2021-12-18 07:16:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-12-18 07:16:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-12-18 07:16:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_resume [2021-12-18 07:16:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_resume [2021-12-18 07:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 07:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 07:16:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 07:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure rxdy_gated_en [2021-12-18 07:16:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rxdy_gated_en [2021-12-18 07:16:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 07:16:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 07:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 07:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 07:16:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 07:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_set_rx_early_size [2021-12-18 07:16:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_set_rx_early_size [2021-12-18 07:16:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 07:16:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 07:16:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_splice [2021-12-18 07:16:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_splice [2021-12-18 07:16:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-18 07:16:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-18 07:16:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-12-18 07:16:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-12-18 07:16:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-18 07:16:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-18 07:16:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_get_coalesce [2021-12-18 07:16:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_get_coalesce [2021-12-18 07:16:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_word [2021-12-18 07:16:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_word [2021-12-18 07:16:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-18 07:16:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-18 07:16:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_rx_mode [2021-12-18 07:16:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_rx_mode [2021-12-18 07:16:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_ioctl [2021-12-18 07:16:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_ioctl [2021-12-18 07:16:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-18 07:16:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-18 07:16:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_disable_aldps [2021-12-18 07:16:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_disable_aldps [2021-12-18 07:16:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 07:16:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 07:16:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_change_mtu [2021-12-18 07:16:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_change_mtu [2021-12-18 07:16:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 07:16:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 07:16:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 07:16:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 07:16:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-18 07:16:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-18 07:16:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-18 07:16:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-18 07:16:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 07:16:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 07:16:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 07:16:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 07:16:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 07:16:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 07:16:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-12-18 07:16:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-12-18 07:16:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure mmd_eee_cap_to_ethtool_sup_t [2021-12-18 07:16:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mmd_eee_cap_to_ethtool_sup_t [2021-12-18 07:16:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-18 07:16:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-18 07:16:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 07:16:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 07:16:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_disable [2021-12-18 07:16:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_disable [2021-12-18 07:16:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_enable [2021-12-18 07:16:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_enable [2021-12-18 07:16:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-18 07:16:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-18 07:16:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2021-12-18 07:16:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2021-12-18 07:16:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 07:16:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 07:16:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_ethtool_set_eee [2021-12-18 07:16:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_ethtool_set_eee [2021-12-18 07:16:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-18 07:16:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-18 07:16:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 07:16:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 07:16:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-18 07:16:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-18 07:16:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 07:16:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 07:16:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 07:16:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 07:16:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 07:16:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 07:16:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 07:16:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 07:16:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure generic_ocp_write [2021-12-18 07:16:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_ocp_write [2021-12-18 07:16:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_nway_reset [2021-12-18 07:16:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_nway_reset [2021-12-18 07:16:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_coalesce [2021-12-18 07:16:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_coalesce [2021-12-18 07:16:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 07:16:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 07:16:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 07:16:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure tx_agg_align [2021-12-18 07:16:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_agg_align [2021-12-18 07:16:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 07:16:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 07:16:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_features_check [2021-12-18 07:16:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_features_check [2021-12-18 07:16:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 07:16:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 07:16:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 07:16:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_reg_write [2021-12-18 07:16:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_reg_write [2021-12-18 07:16:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_tx_timeout [2021-12-18 07:16:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_tx_timeout [2021-12-18 07:16:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-12-18 07:16:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-12-18 07:16:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 07:16:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure rx_agg_align [2021-12-18 07:16:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_agg_align [2021-12-18 07:16:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure __rtl_get_wol [2021-12-18 07:16:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __rtl_get_wol [2021-12-18 07:16:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 07:16:15,493 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 07:16:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 07:16:15,493 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 07:16:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_start_rx [2021-12-18 07:16:15,493 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_start_rx [2021-12-18 07:16:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-18 07:16:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-18 07:16:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mmd_indirect [2021-12-18 07:16:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mmd_indirect [2021-12-18 07:16:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure __rtl_set_wol [2021-12-18 07:16:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __rtl_set_wol [2021-12-18 07:16:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_power_cut_en [2021-12-18 07:16:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_power_cut_en [2021-12-18 07:16:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_word [2021-12-18 07:16:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_word [2021-12-18 07:16:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_stop_rx [2021-12-18 07:16:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_stop_rx [2021-12-18 07:16:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-18 07:16:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-18 07:16:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_control_of_r8152 [2021-12-18 07:16:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_control_of_r8152 [2021-12-18 07:16:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 07:16:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 07:16:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2021-12-18 07:16:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2021-12-18 07:16:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 07:16:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 07:16:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_splice_init [2021-12-18 07:16:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_splice_init [2021-12-18 07:16:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_wol [2021-12-18 07:16:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_wol [2021-12-18 07:16:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-18 07:16:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-18 07:16:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-18 07:16:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-18 07:16:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2021-12-18 07:16:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2021-12-18 07:16:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 07:16:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 07:16:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 07:16:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 07:16:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mmd_read [2021-12-18 07:16:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mmd_read [2021-12-18 07:16:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_teredo_off [2021-12-18 07:16:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_teredo_off [2021-12-18 07:16:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 07:16:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-12-18 07:16:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-12-18 07:16:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-18 07:16:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-18 07:16:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 07:16:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 07:16:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_close [2021-12-18 07:16:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_close [2021-12-18 07:16:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_u1u2en [2021-12-18 07:16:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_u1u2en [2021-12-18 07:16:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_enable_aldps [2021-12-18 07:16:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_enable_aldps [2021-12-18 07:16:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_drop_queued_tx [2021-12-18 07:16:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_drop_queued_tx [2021-12-18 07:16:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 07:16:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 07:16:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mdio_read [2021-12-18 07:16:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mdio_read [2021-12-18 07:16:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_control_of_r8152 [2021-12-18 07:16:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_control_of_r8152 [2021-12-18 07:16:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_enable_aldps [2021-12-18 07:16:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_enable_aldps [2021-12-18 07:16:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_mem [2021-12-18 07:16:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_mem [2021-12-18 07:16:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_control_of_r8152 [2021-12-18 07:16:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_control_of_r8152 [2021-12-18 07:16:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-18 07:16:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-18 07:16:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_byte [2021-12-18 07:16:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_byte [2021-12-18 07:16:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_mac_address [2021-12-18 07:16:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_mac_address [2021-12-18 07:16:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure sram_write [2021-12-18 07:16:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sram_write [2021-12-18 07:16:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_qlen [2021-12-18 07:16:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_qlen [2021-12-18 07:16:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 07:16:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 07:16:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 07:16:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 07:16:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2021-12-18 07:16:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2021-12-18 07:16:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 07:16:15,506 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2021-12-18 07:16:15,506 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2021-12-18 07:16:16,289 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 07:16:16,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 07:16:16,469 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 07:16:54,330 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 07:16:54,349 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 07:16:54,350 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 07:16:54,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:16:54 BoogieIcfgContainer [2021-12-18 07:16:54,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 07:16:54,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 07:16:54,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 07:16:54,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 07:16:54,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:16:10" (1/3) ... [2021-12-18 07:16:54,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffed54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:16:54, skipping insertion in model container [2021-12-18 07:16:54,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:16:14" (2/3) ... [2021-12-18 07:16:54,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffed54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:16:54, skipping insertion in model container [2021-12-18 07:16:54,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:16:54" (3/3) ... [2021-12-18 07:16:54,363 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2021-12-18 07:16:54,368 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 07:16:54,368 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 07:16:54,427 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 07:16:54,444 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 [2021-12-18 07:16:54,447 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 07:16:54,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 2824 states, 1741 states have (on average 1.3090178058587019) internal successors, (2279), 1807 states have internal predecessors, (2279), 912 states have call successors, (912), 170 states have call predecessors, (912), 169 states have return successors, (906), 892 states have call predecessors, (906), 906 states have call successors, (906) [2021-12-18 07:16:54,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-12-18 07:16:54,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:16:54,542 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:16:54,542 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:16:54,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:16:54,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1782154457, now seen corresponding path program 1 times [2021-12-18 07:16:54,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:16:54,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012226115] [2021-12-18 07:16:54,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:16:54,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:16:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:16:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:16:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:16:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:16:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:16:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:16:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:16:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:16:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:16:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:55,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:16:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:16:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:16:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:16:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:16:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:16:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:16:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:16:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:56,221 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 07:16:56,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:16:56,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012226115] [2021-12-18 07:16:56,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012226115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:16:56,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:16:56,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 07:16:56,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066054621] [2021-12-18 07:16:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:16:56,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 07:16:56,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:16:56,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 07:16:56,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 07:16:56,257 INFO L87 Difference]: Start difference. First operand has 2824 states, 1741 states have (on average 1.3090178058587019) internal successors, (2279), 1807 states have internal predecessors, (2279), 912 states have call successors, (912), 170 states have call predecessors, (912), 169 states have return successors, (906), 892 states have call predecessors, (906), 906 states have call successors, (906) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 07:16:58,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:17:00,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:17:18,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:17:18,113 INFO L93 Difference]: Finished difference Result 6205 states and 9771 transitions. [2021-12-18 07:17:18,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 07:17:18,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 250 [2021-12-18 07:17:18,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:17:18,174 INFO L225 Difference]: With dead ends: 6205 [2021-12-18 07:17:18,174 INFO L226 Difference]: Without dead ends: 3372 [2021-12-18 07:17:18,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:17:18,213 INFO L933 BasicCegarLoop]: 3896 mSDtfsCounter, 2498 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 2765 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 7021 SdHoareTripleChecker+Invalid, 4960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2765 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:17:18,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2569 Valid, 7021 Invalid, 4960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2765 Valid, 2193 Invalid, 2 Unknown, 0 Unchecked, 21.1s Time] [2021-12-18 07:17:18,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2021-12-18 07:17:18,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2810. [2021-12-18 07:17:18,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 1735 states have (on average 1.3043227665706052) internal successors, (2263), 1793 states have internal predecessors, (2263), 906 states have call successors, (906), 169 states have call predecessors, (906), 168 states have return successors, (899), 885 states have call predecessors, (899), 899 states have call successors, (899) [2021-12-18 07:17:18,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 4068 transitions. [2021-12-18 07:17:18,524 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 4068 transitions. Word has length 250 [2021-12-18 07:17:18,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:17:18,525 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 4068 transitions. [2021-12-18 07:17:18,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 07:17:18,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 4068 transitions. [2021-12-18 07:17:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-12-18 07:17:18,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:17:18,530 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:17:18,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 07:17:18,531 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:17:18,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:17:18,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1959654471, now seen corresponding path program 1 times [2021-12-18 07:17:18,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:17:18,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726713311] [2021-12-18 07:17:18,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:17:18,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:17:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:17:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:17:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:17:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:17:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:17:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:17:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:17:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:17:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:17:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:17:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:17:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:17:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:17:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:17:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:17:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:17:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:17:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 07:17:19,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:17:19,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726713311] [2021-12-18 07:17:19,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726713311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:17:19,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:17:19,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:17:19,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908632840] [2021-12-18 07:17:19,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:17:19,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:17:19,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:17:19,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:17:19,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:17:19,723 INFO L87 Difference]: Start difference. First operand 2810 states and 4068 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-18 07:17:21,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:17:24,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:17:51,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:17:51,760 INFO L93 Difference]: Finished difference Result 9435 states and 14125 transitions. [2021-12-18 07:17:51,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 07:17:51,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 250 [2021-12-18 07:17:51,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:17:51,813 INFO L225 Difference]: With dead ends: 9435 [2021-12-18 07:17:51,813 INFO L226 Difference]: Without dead ends: 6668 [2021-12-18 07:17:51,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 07:17:51,829 INFO L933 BasicCegarLoop]: 4541 mSDtfsCounter, 10401 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 3589 mSolverCounterSat, 8688 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10838 SdHoareTripleChecker+Valid, 10084 SdHoareTripleChecker+Invalid, 12279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8688 IncrementalHoareTripleChecker+Valid, 3589 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2021-12-18 07:17:51,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10838 Valid, 10084 Invalid, 12279 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8688 Valid, 3589 Invalid, 2 Unknown, 0 Unchecked, 30.9s Time] [2021-12-18 07:17:51,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6668 states. [2021-12-18 07:17:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6668 to 5542. [2021-12-18 07:17:52,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 3425 states have (on average 1.3062773722627736) internal successors, (4474), 3535 states have internal predecessors, (4474), 1781 states have call successors, (1781), 336 states have call predecessors, (1781), 335 states have return successors, (1774), 1746 states have call predecessors, (1774), 1774 states have call successors, (1774) [2021-12-18 07:17:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 8029 transitions. [2021-12-18 07:17:52,106 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 8029 transitions. Word has length 250 [2021-12-18 07:17:52,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:17:52,109 INFO L470 AbstractCegarLoop]: Abstraction has 5542 states and 8029 transitions. [2021-12-18 07:17:52,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-18 07:17:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 8029 transitions. [2021-12-18 07:17:52,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-18 07:17:52,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:17:52,115 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:17:52,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 07:17:52,117 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:17:52,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:17:52,117 INFO L85 PathProgramCache]: Analyzing trace with hash 123010858, now seen corresponding path program 1 times [2021-12-18 07:17:52,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:17:52,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141962892] [2021-12-18 07:17:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:17:52,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:17:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:17:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:17:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:17:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:17:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:17:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:17:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:17:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:17:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:17:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:17:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:17:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:17:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:17:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:17:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:17:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:17:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:17:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:17:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:17:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 07:17:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:17:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 07:17:53,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:17:53,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141962892] [2021-12-18 07:17:53,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141962892] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:17:53,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:17:53,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:17:53,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145640190] [2021-12-18 07:17:53,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:17:53,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:17:53,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:17:53,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:17:53,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:17:53,301 INFO L87 Difference]: Start difference. First operand 5542 states and 8029 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:17:55,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:17:57,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:18:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:18:42,463 INFO L93 Difference]: Finished difference Result 18620 states and 27844 transitions. [2021-12-18 07:18:42,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 07:18:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 257 [2021-12-18 07:18:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:18:42,565 INFO L225 Difference]: With dead ends: 18620 [2021-12-18 07:18:42,565 INFO L226 Difference]: Without dead ends: 13121 [2021-12-18 07:18:42,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 07:18:42,607 INFO L933 BasicCegarLoop]: 5785 mSDtfsCounter, 7063 mSDsluCounter, 10092 mSDsCounter, 0 mSdLazyCounter, 6461 mSolverCounterSat, 4935 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7489 SdHoareTripleChecker+Valid, 15877 SdHoareTripleChecker+Invalid, 11398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4935 IncrementalHoareTripleChecker+Valid, 6461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2021-12-18 07:18:42,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7489 Valid, 15877 Invalid, 11398 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4935 Valid, 6461 Invalid, 2 Unknown, 0 Unchecked, 47.9s Time] [2021-12-18 07:18:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13121 states. [2021-12-18 07:18:43,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13121 to 10865. [2021-12-18 07:18:43,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10865 states, 6714 states have (on average 1.3053321417932677) internal successors, (8764), 6922 states have internal predecessors, (8764), 3481 states have call successors, (3481), 670 states have call predecessors, (3481), 669 states have return successors, (3474), 3420 states have call predecessors, (3474), 3474 states have call successors, (3474) [2021-12-18 07:18:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10865 states to 10865 states and 15719 transitions. [2021-12-18 07:18:43,281 INFO L78 Accepts]: Start accepts. Automaton has 10865 states and 15719 transitions. Word has length 257 [2021-12-18 07:18:43,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:18:43,282 INFO L470 AbstractCegarLoop]: Abstraction has 10865 states and 15719 transitions. [2021-12-18 07:18:43,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:18:43,283 INFO L276 IsEmpty]: Start isEmpty. Operand 10865 states and 15719 transitions. [2021-12-18 07:18:43,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-18 07:18:43,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:18:43,287 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:18:43,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 07:18:43,288 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:18:43,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:18:43,288 INFO L85 PathProgramCache]: Analyzing trace with hash -62786218, now seen corresponding path program 1 times [2021-12-18 07:18:43,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:18:43,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515663904] [2021-12-18 07:18:43,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:18:43,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:18:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:18:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:18:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:18:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:18:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:18:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:18:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:18:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:43,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:18:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:18:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:18:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:18:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:18:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:18:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:18:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:18:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:18:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:18:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:18:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:18:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 07:18:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 07:18:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:18:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 07:18:44,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:18:44,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515663904] [2021-12-18 07:18:44,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515663904] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:18:44,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:18:44,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:18:44,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275587188] [2021-12-18 07:18:44,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:18:44,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:18:44,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:18:44,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:18:44,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:18:44,276 INFO L87 Difference]: Start difference. First operand 10865 states and 15719 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 07:18:46,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:18:58,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:19:13,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:19:13,826 INFO L93 Difference]: Finished difference Result 34834 states and 52036 transitions. [2021-12-18 07:19:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 07:19:13,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 264 [2021-12-18 07:19:13,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:19:14,109 INFO L225 Difference]: With dead ends: 34834 [2021-12-18 07:19:14,109 INFO L226 Difference]: Without dead ends: 24012 [2021-12-18 07:19:14,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 07:19:14,174 INFO L933 BasicCegarLoop]: 4585 mSDtfsCounter, 9399 mSDsluCounter, 5465 mSDsCounter, 0 mSdLazyCounter, 3440 mSolverCounterSat, 7899 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9796 SdHoareTripleChecker+Valid, 10050 SdHoareTripleChecker+Invalid, 11341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7899 IncrementalHoareTripleChecker+Valid, 3440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:19:14,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9796 Valid, 10050 Invalid, 11341 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7899 Valid, 3440 Invalid, 2 Unknown, 0 Unchecked, 28.1s Time] [2021-12-18 07:19:14,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24012 states. [2021-12-18 07:19:15,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24012 to 19964. [2021-12-18 07:19:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19964 states, 12240 states have (on average 1.3013071895424837) internal successors, (15928), 12644 states have internal predecessors, (15928), 6444 states have call successors, (6444), 1280 states have call predecessors, (6444), 1279 states have return successors, (6437), 6329 states have call predecessors, (6437), 6437 states have call successors, (6437) [2021-12-18 07:19:15,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19964 states to 19964 states and 28809 transitions. [2021-12-18 07:19:15,517 INFO L78 Accepts]: Start accepts. Automaton has 19964 states and 28809 transitions. Word has length 264 [2021-12-18 07:19:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:19:15,531 INFO L470 AbstractCegarLoop]: Abstraction has 19964 states and 28809 transitions. [2021-12-18 07:19:15,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 07:19:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 19964 states and 28809 transitions. [2021-12-18 07:19:15,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-18 07:19:15,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:19:15,536 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:19:15,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 07:19:15,537 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:19:15,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:19:15,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1460742321, now seen corresponding path program 1 times [2021-12-18 07:19:15,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:19:15,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88344233] [2021-12-18 07:19:15,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:19:15,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:19:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:19:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:19:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:19:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:19:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:19:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:19:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:19:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:19:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:19:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:19:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:19:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:19:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:19:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:19:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:19:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:19:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:19:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 07:19:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 07:19:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 07:19:17,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:19:17,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88344233] [2021-12-18 07:19:17,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88344233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:19:17,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:19:17,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:19:17,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555663379] [2021-12-18 07:19:17,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:19:17,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:19:17,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:19:17,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:19:17,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:19:17,135 INFO L87 Difference]: Start difference. First operand 19964 states and 28809 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 07:19:19,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:19:47,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:19:47,564 INFO L93 Difference]: Finished difference Result 65389 states and 97834 transitions. [2021-12-18 07:19:47,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 07:19:47,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 269 [2021-12-18 07:19:47,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:19:47,970 INFO L225 Difference]: With dead ends: 65389 [2021-12-18 07:19:47,970 INFO L226 Difference]: Without dead ends: 45478 [2021-12-18 07:19:48,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 07:19:48,096 INFO L933 BasicCegarLoop]: 4847 mSDtfsCounter, 9630 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 3626 mSolverCounterSat, 8011 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10011 SdHoareTripleChecker+Valid, 10417 SdHoareTripleChecker+Invalid, 11638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8011 IncrementalHoareTripleChecker+Valid, 3626 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2021-12-18 07:19:48,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10011 Valid, 10417 Invalid, 11638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8011 Valid, 3626 Invalid, 1 Unknown, 0 Unchecked, 28.2s Time] [2021-12-18 07:19:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45478 states. [2021-12-18 07:19:50,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45478 to 39416. [2021-12-18 07:19:51,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39416 states, 24123 states have (on average 1.2934543796376903) internal successors, (31202), 24901 states have internal predecessors, (31202), 12593 states have call successors, (12593), 2476 states have call predecessors, (12593), 2699 states have return successors, (14424), 12582 states have call predecessors, (14424), 12586 states have call successors, (14424) [2021-12-18 07:19:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39416 states to 39416 states and 58219 transitions. [2021-12-18 07:19:51,347 INFO L78 Accepts]: Start accepts. Automaton has 39416 states and 58219 transitions. Word has length 269 [2021-12-18 07:19:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:19:51,348 INFO L470 AbstractCegarLoop]: Abstraction has 39416 states and 58219 transitions. [2021-12-18 07:19:51,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 07:19:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 39416 states and 58219 transitions. [2021-12-18 07:19:51,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-18 07:19:51,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:19:51,352 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:19:51,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 07:19:51,353 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:19:51,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:19:51,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1004725110, now seen corresponding path program 1 times [2021-12-18 07:19:51,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:19:51,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940811708] [2021-12-18 07:19:51,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:19:51,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:19:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:19:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:19:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:19:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:19:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:19:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:51,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:19:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:19:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:19:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:19:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:19:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:19:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:19:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:19:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:19:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:19:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:19:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:19:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 07:19:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:19:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:19:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:19:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-12-18 07:19:52,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:19:52,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940811708] [2021-12-18 07:19:52,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940811708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:19:52,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:19:52,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:19:52,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560016798] [2021-12-18 07:19:52,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:19:52,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:19:52,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:19:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:19:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:19:52,545 INFO L87 Difference]: Start difference. First operand 39416 states and 58219 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:19:54,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:20:23,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:20:23,926 INFO L93 Difference]: Finished difference Result 125226 states and 192001 transitions. [2021-12-18 07:20:23,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 07:20:23,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 270 [2021-12-18 07:20:23,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:20:24,924 INFO L225 Difference]: With dead ends: 125226 [2021-12-18 07:20:24,925 INFO L226 Difference]: Without dead ends: 85863 [2021-12-18 07:20:25,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 07:20:25,197 INFO L933 BasicCegarLoop]: 5193 mSDtfsCounter, 8871 mSDsluCounter, 5712 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 7273 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9215 SdHoareTripleChecker+Valid, 10905 SdHoareTripleChecker+Invalid, 10715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7273 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2021-12-18 07:20:25,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9215 Valid, 10905 Invalid, 10715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7273 Valid, 3441 Invalid, 1 Unknown, 0 Unchecked, 27.6s Time] [2021-12-18 07:20:25,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85863 states. [2021-12-18 07:20:28,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85863 to 73758. [2021-12-18 07:20:28,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73758 states, 45212 states have (on average 1.2960276032911617) internal successors, (58596), 46852 states have internal predecessors, (58596), 23393 states have call successors, (23393), 4830 states have call predecessors, (23393), 5152 states have return successors, (27203), 23046 states have call predecessors, (27203), 23379 states have call successors, (27203) [2021-12-18 07:20:29,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73758 states to 73758 states and 109192 transitions. [2021-12-18 07:20:29,327 INFO L78 Accepts]: Start accepts. Automaton has 73758 states and 109192 transitions. Word has length 270 [2021-12-18 07:20:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:20:29,328 INFO L470 AbstractCegarLoop]: Abstraction has 73758 states and 109192 transitions. [2021-12-18 07:20:29,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:20:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 73758 states and 109192 transitions. [2021-12-18 07:20:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-12-18 07:20:29,329 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:20:29,330 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:20:29,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 07:20:29,330 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:20:29,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:20:29,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1083428190, now seen corresponding path program 1 times [2021-12-18 07:20:29,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:20:29,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219431955] [2021-12-18 07:20:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:20:29,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:20:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:20:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:20:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:20:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:20:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:20:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:20:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:20:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:20:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:20:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:20:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:20:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:20:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:20:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:20:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:20:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:20:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:20:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 07:20:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:20:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:20:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:20:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-12-18 07:20:30,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:20:30,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219431955] [2021-12-18 07:20:30,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219431955] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:20:30,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:20:30,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:20:30,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990236060] [2021-12-18 07:20:30,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:20:30,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:20:30,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:20:30,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:20:30,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:20:30,707 INFO L87 Difference]: Start difference. First operand 73758 states and 109192 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:20:32,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:20:35,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:20:51,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:21:02,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:21:02,883 INFO L93 Difference]: Finished difference Result 85285 states and 131320 transitions. [2021-12-18 07:21:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 07:21:02,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 271 [2021-12-18 07:21:02,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:21:03,647 INFO L225 Difference]: With dead ends: 85285 [2021-12-18 07:21:03,647 INFO L226 Difference]: Without dead ends: 85282 [2021-12-18 07:21:03,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-18 07:21:03,703 INFO L933 BasicCegarLoop]: 3763 mSDtfsCounter, 5806 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 3400 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6192 SdHoareTripleChecker+Valid, 8324 SdHoareTripleChecker+Invalid, 6451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3400 IncrementalHoareTripleChecker+Valid, 3048 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2021-12-18 07:21:03,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6192 Valid, 8324 Invalid, 6451 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3400 Valid, 3048 Invalid, 3 Unknown, 0 Unchecked, 29.3s Time] [2021-12-18 07:21:03,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85282 states. [2021-12-18 07:21:06,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85282 to 73757. [2021-12-18 07:21:06,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73757 states, 45212 states have (on average 1.2960054852693974) internal successors, (58595), 46851 states have internal predecessors, (58595), 23392 states have call successors, (23392), 4830 states have call predecessors, (23392), 5152 states have return successors, (27203), 23046 states have call predecessors, (27203), 23379 states have call successors, (27203) [2021-12-18 07:21:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73757 states to 73757 states and 109190 transitions. [2021-12-18 07:21:07,587 INFO L78 Accepts]: Start accepts. Automaton has 73757 states and 109190 transitions. Word has length 271 [2021-12-18 07:21:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:21:07,589 INFO L470 AbstractCegarLoop]: Abstraction has 73757 states and 109190 transitions. [2021-12-18 07:21:07,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:21:07,590 INFO L276 IsEmpty]: Start isEmpty. Operand 73757 states and 109190 transitions. [2021-12-18 07:21:07,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-12-18 07:21:07,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:21:07,592 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:21:07,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 07:21:07,593 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:21:07,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:21:07,593 INFO L85 PathProgramCache]: Analyzing trace with hash 771748493, now seen corresponding path program 1 times [2021-12-18 07:21:07,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:21:07,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681692221] [2021-12-18 07:21:07,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:21:07,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:21:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:21:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:21:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:21:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:21:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:21:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:21:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:21:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:21:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:21:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:21:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:21:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:21:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:21:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:21:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:21:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:21:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:21:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 07:21:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-12-18 07:21:08,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:21:08,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681692221] [2021-12-18 07:21:08,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681692221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:21:08,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:21:08,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:21:08,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998324959] [2021-12-18 07:21:08,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:21:08,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:21:08,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:21:08,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:21:08,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:21:08,799 INFO L87 Difference]: Start difference. First operand 73757 states and 109190 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:21:10,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:21:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:21:26,838 INFO L93 Difference]: Finished difference Result 85284 states and 131318 transitions. [2021-12-18 07:21:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 07:21:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 272 [2021-12-18 07:21:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:21:27,565 INFO L225 Difference]: With dead ends: 85284 [2021-12-18 07:21:27,565 INFO L226 Difference]: Without dead ends: 85281 [2021-12-18 07:21:27,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-18 07:21:27,616 INFO L933 BasicCegarLoop]: 3779 mSDtfsCounter, 7040 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 4806 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7417 SdHoareTripleChecker+Valid, 5569 SdHoareTripleChecker+Invalid, 6374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4806 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:21:27,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7417 Valid, 5569 Invalid, 6374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4806 Valid, 1567 Invalid, 1 Unknown, 0 Unchecked, 15.1s Time] [2021-12-18 07:21:27,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85281 states. [2021-12-18 07:21:30,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85281 to 73756. [2021-12-18 07:21:30,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73756 states, 45212 states have (on average 1.2959833672476333) internal successors, (58594), 46850 states have internal predecessors, (58594), 23391 states have call successors, (23391), 4830 states have call predecessors, (23391), 5152 states have return successors, (27203), 23046 states have call predecessors, (27203), 23379 states have call successors, (27203) [2021-12-18 07:21:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73756 states to 73756 states and 109188 transitions. [2021-12-18 07:21:31,395 INFO L78 Accepts]: Start accepts. Automaton has 73756 states and 109188 transitions. Word has length 272 [2021-12-18 07:21:31,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:21:31,396 INFO L470 AbstractCegarLoop]: Abstraction has 73756 states and 109188 transitions. [2021-12-18 07:21:31,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:21:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 73756 states and 109188 transitions. [2021-12-18 07:21:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-12-18 07:21:31,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:21:31,399 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:21:31,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 07:21:31,399 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:21:31,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:21:31,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1847311611, now seen corresponding path program 1 times [2021-12-18 07:21:31,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:21:31,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683859380] [2021-12-18 07:21:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:21:31,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:21:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:31,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:21:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:21:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:21:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:21:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:21:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:21:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:21:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:21:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:21:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:21:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:21:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:21:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:21:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:21:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:21:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:21:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:21:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 07:21:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:21:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:21:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:21:32,594 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-12-18 07:21:32,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:21:32,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683859380] [2021-12-18 07:21:32,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683859380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:21:32,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:21:32,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:21:32,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915816554] [2021-12-18 07:21:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:21:32,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:21:32,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:21:32,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:21:32,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:21:32,597 INFO L87 Difference]: Start difference. First operand 73756 states and 109188 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:21:34,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:21:36,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:21:51,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:22:00,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:22:00,346 INFO L93 Difference]: Finished difference Result 85283 states and 131316 transitions. [2021-12-18 07:22:00,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 07:22:00,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 273 [2021-12-18 07:22:00,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:22:01,001 INFO L225 Difference]: With dead ends: 85283 [2021-12-18 07:22:01,001 INFO L226 Difference]: Without dead ends: 85272 [2021-12-18 07:22:01,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-18 07:22:01,056 INFO L933 BasicCegarLoop]: 3755 mSDtfsCounter, 5811 mSDsluCounter, 3242 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 3402 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6202 SdHoareTripleChecker+Valid, 6997 SdHoareTripleChecker+Invalid, 5737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3402 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2021-12-18 07:22:01,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6202 Valid, 6997 Invalid, 5737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3402 Valid, 2332 Invalid, 3 Unknown, 0 Unchecked, 24.7s Time] [2021-12-18 07:22:01,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85272 states. [2021-12-18 07:22:04,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85272 to 73747. [2021-12-18 07:22:04,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73747 states, 45204 states have (on average 1.295703920007079) internal successors, (58571), 46841 states have internal predecessors, (58571), 23390 states have call successors, (23390), 4830 states have call predecessors, (23390), 5152 states have return successors, (27203), 23046 states have call predecessors, (27203), 23379 states have call successors, (27203) [2021-12-18 07:22:04,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73747 states to 73747 states and 109164 transitions. [2021-12-18 07:22:04,733 INFO L78 Accepts]: Start accepts. Automaton has 73747 states and 109164 transitions. Word has length 273 [2021-12-18 07:22:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:22:04,734 INFO L470 AbstractCegarLoop]: Abstraction has 73747 states and 109164 transitions. [2021-12-18 07:22:04,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 07:22:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 73747 states and 109164 transitions. [2021-12-18 07:22:04,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-12-18 07:22:04,736 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:22:04,737 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:22:04,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 07:22:04,737 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:22:04,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:22:04,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2114227373, now seen corresponding path program 1 times [2021-12-18 07:22:04,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:22:04,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443243555] [2021-12-18 07:22:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:22:04,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:22:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:22:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:22:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:22:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:22:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:22:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:22:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:22:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:22:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:22:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:22:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:22:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:22:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:22:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:22:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:22:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:22:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:22:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 07:22:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 07:22:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:06,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 07:22:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:06,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-18 07:22:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-18 07:22:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:06,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 07:22:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-12-18 07:22:06,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:22:06,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443243555] [2021-12-18 07:22:06,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443243555] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:22:06,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:22:06,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 07:22:06,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162448165] [2021-12-18 07:22:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:22:06,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 07:22:06,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:22:06,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 07:22:06,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:22:06,075 INFO L87 Difference]: Start difference. First operand 73747 states and 109164 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 07:22:08,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:22:10,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:22:12,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:22:28,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:22:52,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:22:52,349 INFO L93 Difference]: Finished difference Result 123070 states and 185726 transitions. [2021-12-18 07:22:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 07:22:52,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 315 [2021-12-18 07:22:52,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:22:52,649 INFO L225 Difference]: With dead ends: 123070 [2021-12-18 07:22:52,649 INFO L226 Difference]: Without dead ends: 49372 [2021-12-18 07:22:53,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-12-18 07:22:53,071 INFO L933 BasicCegarLoop]: 3417 mSDtfsCounter, 5431 mSDsluCounter, 4512 mSDsCounter, 0 mSdLazyCounter, 5189 mSolverCounterSat, 5674 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5959 SdHoareTripleChecker+Valid, 7929 SdHoareTripleChecker+Invalid, 10866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5674 IncrementalHoareTripleChecker+Valid, 5189 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2021-12-18 07:22:53,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5959 Valid, 7929 Invalid, 10866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5674 Valid, 5189 Invalid, 3 Unknown, 0 Unchecked, 42.3s Time] [2021-12-18 07:22:53,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49372 states. [2021-12-18 07:22:54,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49372 to 41190. [2021-12-18 07:22:54,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41190 states, 25189 states have (on average 1.2911588391758306) internal successors, (32523), 26136 states have internal predecessors, (32523), 13039 states have call successors, (13039), 2701 states have call predecessors, (13039), 2961 states have return successors, (15273), 12899 states have call predecessors, (15273), 13028 states have call successors, (15273) [2021-12-18 07:22:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41190 states to 41190 states and 60835 transitions. [2021-12-18 07:22:55,021 INFO L78 Accepts]: Start accepts. Automaton has 41190 states and 60835 transitions. Word has length 315 [2021-12-18 07:22:55,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:22:55,021 INFO L470 AbstractCegarLoop]: Abstraction has 41190 states and 60835 transitions. [2021-12-18 07:22:55,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 07:22:55,021 INFO L276 IsEmpty]: Start isEmpty. Operand 41190 states and 60835 transitions. [2021-12-18 07:22:55,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-18 07:22:55,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:22:55,025 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:22:55,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 07:22:55,025 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:22:55,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:22:55,026 INFO L85 PathProgramCache]: Analyzing trace with hash 362169971, now seen corresponding path program 1 times [2021-12-18 07:22:55,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:22:55,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883849810] [2021-12-18 07:22:55,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:22:55,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:22:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:55,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:22:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:55,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:55,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:22:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:55,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:55,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:22:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:55,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:22:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:22:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:22:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:22:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:22:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:22:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:22:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:22:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:22:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:22:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:22:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:22:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:22:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:22:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:22:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 07:22:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 07:22:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:22:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 07:22:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 07:22:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 07:22:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 07:22:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:22:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 07:22:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 07:22:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-18 07:22:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 07:22:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:22:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-12-18 07:22:56,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:22:56,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883849810] [2021-12-18 07:22:56,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883849810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:22:56,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:22:56,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 07:22:56,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089557043] [2021-12-18 07:22:56,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:22:56,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 07:22:56,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:22:56,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 07:22:56,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-18 07:22:56,631 INFO L87 Difference]: Start difference. First operand 41190 states and 60835 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 07:22:58,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:23:00,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:23:03,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:23:05,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:23:39,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:23:41,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:24:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:24:29,790 INFO L93 Difference]: Finished difference Result 87384 states and 132831 transitions. [2021-12-18 07:24:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 07:24:29,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 326 [2021-12-18 07:24:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:24:30,042 INFO L225 Difference]: With dead ends: 87384 [2021-12-18 07:24:30,042 INFO L226 Difference]: Without dead ends: 46247 [2021-12-18 07:24:30,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2021-12-18 07:24:30,226 INFO L933 BasicCegarLoop]: 3349 mSDtfsCounter, 4094 mSDsluCounter, 14005 mSDsCounter, 0 mSdLazyCounter, 12839 mSolverCounterSat, 4153 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4616 SdHoareTripleChecker+Valid, 17354 SdHoareTripleChecker+Invalid, 16997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 4153 IncrementalHoareTripleChecker+Valid, 12839 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:24:30,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4616 Valid, 17354 Invalid, 16997 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [4153 Valid, 12839 Invalid, 5 Unknown, 0 Unchecked, 89.1s Time] [2021-12-18 07:24:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46247 states. [2021-12-18 07:24:31,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46247 to 39305. [2021-12-18 07:24:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39305 states, 24122 states have (on average 1.2920570433629053) internal successors, (31167), 24989 states have internal predecessors, (31167), 12358 states have call successors, (12358), 2572 states have call predecessors, (12358), 2824 states have return successors, (14340), 12263 states have call predecessors, (14340), 12347 states have call successors, (14340) [2021-12-18 07:24:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39305 states to 39305 states and 57865 transitions. [2021-12-18 07:24:32,230 INFO L78 Accepts]: Start accepts. Automaton has 39305 states and 57865 transitions. Word has length 326 [2021-12-18 07:24:32,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:24:32,230 INFO L470 AbstractCegarLoop]: Abstraction has 39305 states and 57865 transitions. [2021-12-18 07:24:32,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 07:24:32,231 INFO L276 IsEmpty]: Start isEmpty. Operand 39305 states and 57865 transitions. [2021-12-18 07:24:32,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-12-18 07:24:32,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:24:32,234 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:24:32,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 07:24:32,234 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:24:32,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:24:32,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2124866959, now seen corresponding path program 1 times [2021-12-18 07:24:32,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:24:32,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441852600] [2021-12-18 07:24:32,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:24:32,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:24:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:24:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:24:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:24:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:24:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:24:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:24:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:24:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:24:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:24:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:24:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:24:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:24:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:24:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:24:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:24:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:24:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:24:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:24:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 07:24:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 07:24:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:24:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 07:24:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 07:24:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 07:24:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-18 07:24:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:24:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 07:24:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 07:24:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 07:24:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-18 07:24:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:24:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-12-18 07:24:33,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:24:33,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441852600] [2021-12-18 07:24:33,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441852600] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:24:33,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:24:33,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 07:24:33,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617593719] [2021-12-18 07:24:33,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:24:33,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 07:24:33,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:24:33,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 07:24:33,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:24:33,347 INFO L87 Difference]: Start difference. First operand 39305 states and 57865 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 7 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 07:24:35,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:24:37,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:24:40,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:24:42,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:24:57,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:25:06,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:25:47,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:25:47,223 INFO L93 Difference]: Finished difference Result 74154 states and 111079 transitions. [2021-12-18 07:25:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 07:25:47,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 7 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 325 [2021-12-18 07:25:47,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:25:47,388 INFO L225 Difference]: With dead ends: 74154 [2021-12-18 07:25:47,388 INFO L226 Difference]: Without dead ends: 34902 [2021-12-18 07:25:47,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-18 07:25:47,534 INFO L933 BasicCegarLoop]: 4048 mSDtfsCounter, 9369 mSDsluCounter, 5077 mSDsCounter, 0 mSdLazyCounter, 8415 mSolverCounterSat, 8865 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9931 SdHoareTripleChecker+Valid, 9125 SdHoareTripleChecker+Invalid, 17286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8865 IncrementalHoareTripleChecker+Valid, 8415 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.5s IncrementalHoareTripleChecker+Time [2021-12-18 07:25:47,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9931 Valid, 9125 Invalid, 17286 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8865 Valid, 8415 Invalid, 6 Unknown, 0 Unchecked, 70.5s Time] [2021-12-18 07:25:47,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34902 states. [2021-12-18 07:25:48,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34902 to 29852. [2021-12-18 07:25:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29852 states, 18571 states have (on average 1.297506865543051) internal successors, (24096), 19172 states have internal predecessors, (24096), 9146 states have call successors, (9146), 2030 states have call predecessors, (9146), 2134 states have return successors, (9833), 9024 states have call predecessors, (9833), 9108 states have call successors, (9833) [2021-12-18 07:25:48,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29852 states to 29852 states and 43075 transitions. [2021-12-18 07:25:48,956 INFO L78 Accepts]: Start accepts. Automaton has 29852 states and 43075 transitions. Word has length 325 [2021-12-18 07:25:48,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:25:48,957 INFO L470 AbstractCegarLoop]: Abstraction has 29852 states and 43075 transitions. [2021-12-18 07:25:48,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 7 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 07:25:48,957 INFO L276 IsEmpty]: Start isEmpty. Operand 29852 states and 43075 transitions. [2021-12-18 07:25:48,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-18 07:25:48,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:25:48,963 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:25:48,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 07:25:48,963 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:25:48,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:25:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash -613237015, now seen corresponding path program 1 times [2021-12-18 07:25:48,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:25:48,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446994398] [2021-12-18 07:25:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:25:48,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:25:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:25:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:25:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:25:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:25:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:25:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:25:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:25:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:25:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:25:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:25:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:25:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:25:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:25:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:25:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:25:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:25:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:25:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:25:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 07:25:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 07:25:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 07:25:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 07:25:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:49,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 07:25:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 07:25:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:25:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-18 07:25:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 07:25:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 07:25:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 07:25:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:25:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 07:25:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:25:50,185 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2021-12-18 07:25:50,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:25:50,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446994398] [2021-12-18 07:25:50,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446994398] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:25:50,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:25:50,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 07:25:50,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460239385] [2021-12-18 07:25:50,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:25:50,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 07:25:50,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:25:50,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 07:25:50,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-18 07:25:50,188 INFO L87 Difference]: Start difference. First operand 29852 states and 43075 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-18 07:25:52,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:25:54,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:25:56,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:26:13,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:26:39,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:26:39,542 INFO L93 Difference]: Finished difference Result 64525 states and 95077 transitions. [2021-12-18 07:26:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 07:26:39,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 356 [2021-12-18 07:26:39,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:26:39,693 INFO L225 Difference]: With dead ends: 64525 [2021-12-18 07:26:39,693 INFO L226 Difference]: Without dead ends: 34734 [2021-12-18 07:26:39,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-12-18 07:26:39,782 INFO L933 BasicCegarLoop]: 3339 mSDtfsCounter, 4391 mSDsluCounter, 5265 mSDsCounter, 0 mSdLazyCounter, 6010 mSolverCounterSat, 4228 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4956 SdHoareTripleChecker+Valid, 8604 SdHoareTripleChecker+Invalid, 10242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4228 IncrementalHoareTripleChecker+Valid, 6010 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2021-12-18 07:26:39,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4956 Valid, 8604 Invalid, 10242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4228 Valid, 6010 Invalid, 4 Unknown, 0 Unchecked, 47.0s Time] [2021-12-18 07:26:39,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34734 states. [2021-12-18 07:26:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34734 to 29873. [2021-12-18 07:26:41,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29873 states, 18588 states have (on average 1.2972347751237356) internal successors, (24113), 19193 states have internal predecessors, (24113), 9146 states have call successors, (9146), 2030 states have call predecessors, (9146), 2138 states have return successors, (9837), 9024 states have call predecessors, (9837), 9108 states have call successors, (9837) [2021-12-18 07:26:41,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29873 states to 29873 states and 43096 transitions. [2021-12-18 07:26:41,223 INFO L78 Accepts]: Start accepts. Automaton has 29873 states and 43096 transitions. Word has length 356 [2021-12-18 07:26:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:26:41,223 INFO L470 AbstractCegarLoop]: Abstraction has 29873 states and 43096 transitions. [2021-12-18 07:26:41,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-18 07:26:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 29873 states and 43096 transitions. [2021-12-18 07:26:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-12-18 07:26:41,229 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:26:41,229 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:26:41,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 07:26:41,229 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:26:41,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:26:41,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1924243098, now seen corresponding path program 1 times [2021-12-18 07:26:41,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:26:41,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879615503] [2021-12-18 07:26:41,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:26:41,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:26:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:26:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:26:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:26:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:26:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:26:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:26:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:26:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:26:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:26:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:26:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:26:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:26:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:26:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:26:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:26:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:26:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:26:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:26:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 07:26:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 07:26:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 07:26:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 07:26:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 07:26:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-18 07:26:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:26:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-18 07:26:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 07:26:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 07:26:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-12-18 07:26:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:26:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-12-18 07:26:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:26:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2021-12-18 07:26:42,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:26:42,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879615503] [2021-12-18 07:26:42,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879615503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:26:42,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:26:42,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 07:26:42,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222910373] [2021-12-18 07:26:42,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:26:42,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 07:26:42,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:26:42,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 07:26:42,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-18 07:26:42,580 INFO L87 Difference]: Start difference. First operand 29873 states and 43096 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-18 07:26:44,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:26:46,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:26:49,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:27:10,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:28:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:28:00,832 INFO L93 Difference]: Finished difference Result 96572 states and 143964 transitions. [2021-12-18 07:28:00,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 07:28:00,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 355 [2021-12-18 07:28:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:28:01,465 INFO L225 Difference]: With dead ends: 96572 [2021-12-18 07:28:01,465 INFO L226 Difference]: Without dead ends: 66760 [2021-12-18 07:28:01,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-18 07:28:01,598 INFO L933 BasicCegarLoop]: 3568 mSDtfsCounter, 10826 mSDsluCounter, 5530 mSDsCounter, 0 mSdLazyCounter, 9699 mSolverCounterSat, 10394 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11630 SdHoareTripleChecker+Valid, 9098 SdHoareTripleChecker+Invalid, 20097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10394 IncrementalHoareTripleChecker+Valid, 9699 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.9s IncrementalHoareTripleChecker+Time [2021-12-18 07:28:01,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11630 Valid, 9098 Invalid, 20097 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10394 Valid, 9699 Invalid, 4 Unknown, 0 Unchecked, 73.9s Time] [2021-12-18 07:28:01,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66760 states. [2021-12-18 07:28:04,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66760 to 57435. [2021-12-18 07:28:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57435 states, 35382 states have (on average 1.288734384715392) internal successors, (45598), 36577 states have internal predecessors, (45598), 17871 states have call successors, (17871), 3990 states have call predecessors, (17871), 4181 states have return successors, (19667), 17583 states have call predecessors, (19667), 17824 states have call successors, (19667) [2021-12-18 07:28:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57435 states to 57435 states and 83136 transitions. [2021-12-18 07:28:04,412 INFO L78 Accepts]: Start accepts. Automaton has 57435 states and 83136 transitions. Word has length 355 [2021-12-18 07:28:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:28:04,412 INFO L470 AbstractCegarLoop]: Abstraction has 57435 states and 83136 transitions. [2021-12-18 07:28:04,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-18 07:28:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 57435 states and 83136 transitions. [2021-12-18 07:28:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-18 07:28:04,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:28:04,418 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:28:04,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 07:28:04,418 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:28:04,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:28:04,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1687585575, now seen corresponding path program 1 times [2021-12-18 07:28:04,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:28:04,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868407638] [2021-12-18 07:28:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:28:04,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:28:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:28:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:28:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:28:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:28:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:28:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:28:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 07:28:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 07:28:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 07:28:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:28:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 07:28:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 07:28:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 07:28:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 07:28:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 07:28:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 07:28:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 07:28:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 07:28:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 07:28:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 07:28:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 07:28:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 07:28:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 07:28:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 07:28:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:28:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-18 07:28:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 07:28:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 07:28:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 07:28:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:28:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 07:28:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:28:05,966 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2021-12-18 07:28:05,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:28:05,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868407638] [2021-12-18 07:28:05,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868407638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:28:05,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:28:05,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 07:28:05,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850407111] [2021-12-18 07:28:05,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:28:05,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 07:28:05,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:28:05,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 07:28:05,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-18 07:28:05,969 INFO L87 Difference]: Start difference. First operand 57435 states and 83136 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-18 07:28:08,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:28:10,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 07:29:07,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:29:07,643 INFO L93 Difference]: Finished difference Result 158653 states and 236431 transitions. [2021-12-18 07:29:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 07:29:07,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 356 [2021-12-18 07:29:07,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:29:08,657 INFO L225 Difference]: With dead ends: 158653 [2021-12-18 07:29:08,657 INFO L226 Difference]: Without dead ends: 101279 [2021-12-18 07:29:08,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-18 07:29:08,912 INFO L933 BasicCegarLoop]: 3569 mSDtfsCounter, 15261 mSDsluCounter, 4369 mSDsCounter, 0 mSdLazyCounter, 7153 mSolverCounterSat, 15773 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16052 SdHoareTripleChecker+Valid, 7938 SdHoareTripleChecker+Invalid, 22928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15773 IncrementalHoareTripleChecker+Valid, 7153 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.6s IncrementalHoareTripleChecker+Time [2021-12-18 07:29:08,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16052 Valid, 7938 Invalid, 22928 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15773 Valid, 7153 Invalid, 2 Unknown, 0 Unchecked, 55.6s Time] [2021-12-18 07:29:08,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101279 states. [2021-12-18 07:29:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101279 to 87494. [2021-12-18 07:29:13,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87494 states, 54092 states have (on average 1.2898210456259707) internal successors, (69769), 55873 states have internal predecessors, (69769), 27053 states have call successors, (27053), 6011 states have call predecessors, (27053), 6348 states have return successors, (30147), 26676 states have call predecessors, (30147), 26989 states have call successors, (30147) [2021-12-18 07:29:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87494 states to 87494 states and 126969 transitions. [2021-12-18 07:29:13,687 INFO L78 Accepts]: Start accepts. Automaton has 87494 states and 126969 transitions. Word has length 356 [2021-12-18 07:29:13,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:29:13,688 INFO L470 AbstractCegarLoop]: Abstraction has 87494 states and 126969 transitions. [2021-12-18 07:29:13,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (43), 7 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-18 07:29:13,688 INFO L276 IsEmpty]: Start isEmpty. Operand 87494 states and 126969 transitions. [2021-12-18 07:29:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-12-18 07:29:13,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:29:13,694 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:29:13,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 07:29:13,694 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:29:13,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:29:13,695 INFO L85 PathProgramCache]: Analyzing trace with hash -97232578, now seen corresponding path program 1 times [2021-12-18 07:29:13,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:29:13,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113276724] [2021-12-18 07:29:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:29:13,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15