./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.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 fa9ec5014a93fa4ada80c2707ca9ad7bdd1ffda04a5a3c96f283fdf229b22b41 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 04:21:41,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 04:21:41,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 04:21:41,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 04:21:41,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 04:21:41,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 04:21:41,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 04:21:41,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 04:21:41,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 04:21:41,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 04:21:41,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 04:21:41,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 04:21:41,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 04:21:41,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 04:21:41,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 04:21:41,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 04:21:41,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 04:21:41,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 04:21:41,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 04:21:41,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 04:21:41,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 04:21:41,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 04:21:41,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 04:21:41,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 04:21:41,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 04:21:41,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 04:21:41,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 04:21:41,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 04:21:41,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 04:21:41,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 04:21:41,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 04:21:41,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 04:21:41,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 04:21:41,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 04:21:41,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 04:21:41,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 04:21:41,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 04:21:41,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 04:21:41,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 04:21:41,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 04:21:41,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 04:21:41,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 04:21:41,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 04:21:41,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 04:21:41,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 04:21:41,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 04:21:41,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 04:21:41,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 04:21:41,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 04:21:41,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 04:21:41,208 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 04:21:41,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 04:21:41,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 04:21:41,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 04:21:41,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 04:21:41,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 04:21:41,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 04:21:41,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 04:21:41,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 04:21:41,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 04:21:41,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 04:21:41,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 04:21:41,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 04:21:41,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:21:41,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 04:21:41,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 04:21:41,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 04:21:41,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 04:21:41,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 04:21:41,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 04:21:41,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 04:21:41,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 04:21:41,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 04:21:41,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa9ec5014a93fa4ada80c2707ca9ad7bdd1ffda04a5a3c96f283fdf229b22b41 [2021-12-18 04:21:41,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 04:21:41,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 04:21:41,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 04:21:41,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 04:21:41,433 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 04:21:41,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-12-18 04:21:41,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9499f04cc/ba4f65bae0e74e41978a48a5be392657/FLAG51b82f6e9 [2021-12-18 04:21:42,277 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 04:21:42,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-12-18 04:21:42,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9499f04cc/ba4f65bae0e74e41978a48a5be392657/FLAG51b82f6e9 [2021-12-18 04:21:42,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9499f04cc/ba4f65bae0e74e41978a48a5be392657 [2021-12-18 04:21:42,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 04:21:42,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 04:21:42,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 04:21:42,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 04:21:42,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 04:21:42,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:21:42" (1/1) ... [2021-12-18 04:21:42,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b6e84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:42, skipping insertion in model container [2021-12-18 04:21:42,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:21:42" (1/1) ... [2021-12-18 04:21:42,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 04:21:42,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 04:21:44,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[223336,223349] [2021-12-18 04:21:45,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:21:45,518 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 04:21:45,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[223336,223349] [2021-12-18 04:21:45,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:21:46,036 INFO L208 MainTranslator]: Completed translation [2021-12-18 04:21:46,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46 WrapperNode [2021-12-18 04:21:46,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 04:21:46,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 04:21:46,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 04:21:46,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 04:21:46,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,526 INFO L137 Inliner]: procedures = 418, calls = 3842, calls flagged for inlining = 181, calls inlined = 158, statements flattened = 7829 [2021-12-18 04:21:46,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 04:21:46,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 04:21:46,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 04:21:46,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 04:21:46,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 04:21:46,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 04:21:46,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 04:21:46,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 04:21:46,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (1/1) ... [2021-12-18 04:21:46,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:21:46,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:21:46,964 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 04:21:46,996 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 04:21:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_disable [2021-12-18 04:21:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_disable [2021-12-18 04:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_key [2021-12-18 04:21:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_key [2021-12-18 04:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_use_fixed_rate_ap [2021-12-18 04:21:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_use_fixed_rate_ap [2021-12-18 04:21:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 04:21:47,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 04:21:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_rts_threshold [2021-12-18 04:21:47,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_rts_threshold [2021-12-18 04:21:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 04:21:47,023 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 04:21:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 04:21:47,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 04:21:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_interface [2021-12-18 04:21:47,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_interface [2021-12-18 04:21:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-18 04:21:47,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-18 04:21:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 04:21:47,024 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 04:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-18 04:21:47,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-18 04:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 04:21:47,025 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 04:21:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-18 04:21:47,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-18 04:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 04:21:47,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 04:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_prepare_multicast [2021-12-18 04:21:47,026 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_prepare_multicast [2021-12-18 04:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_feed_fw_image [2021-12-18 04:21:47,026 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_feed_fw_image [2021-12-18 04:21:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_release_firmware [2021-12-18 04:21:47,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_release_firmware [2021-12-18 04:21:47,027 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 04:21:47,027 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 04:21:47,027 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 04:21:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_enable [2021-12-18 04:21:47,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_enable [2021-12-18 04:21:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_mgmt [2021-12-18 04:21:47,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_mgmt [2021-12-18 04:21:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_process [2021-12-18 04:21:47,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_process [2021-12-18 04:21:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-18 04:21:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_fw_unlock [2021-12-18 04:21:47,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_fw_unlock [2021-12-18 04:21:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_get_stats [2021-12-18 04:21:47,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_get_stats [2021-12-18 04:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 04:21:47,030 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 04:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 04:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-18 04:21:47,030 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-18 04:21:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 04:21:47,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 04:21:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_configure_filter [2021-12-18 04:21:47,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_configure_filter [2021-12-18 04:21:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_ht_caps [2021-12-18 04:21:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_ht_caps [2021-12-18 04:21:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_start [2021-12-18 04:21:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_start [2021-12-18 04:21:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_request_fw [2021-12-18 04:21:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_request_fw [2021-12-18 04:21:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 04:21:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-18 04:21:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 04:21:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_load_firmware [2021-12-18 04:21:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_load_firmware [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 04:21:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-18 04:21:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-18 04:21:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_probe_hw [2021-12-18 04:21:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_probe_hw [2021-12-18 04:21:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_PERM_ADDR [2021-12-18 04:21:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_PERM_ADDR [2021-12-18 04:21:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 04:21:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 04:21:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_name [2021-12-18 04:21:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_name [2021-12-18 04:21:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_tx [2021-12-18 04:21:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_tx [2021-12-18 04:21:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-18 04:21:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-18 04:21:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-18 04:21:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-18 04:21:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sw_scan_start [2021-12-18 04:21:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sw_scan_start [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 04:21:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 04:21:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_refill [2021-12-18 04:21:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_refill [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_caps [2021-12-18 04:21:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_caps [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-12-18 04:21:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_wmm_mode [2021-12-18 04:21:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_wmm_mode [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 04:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_get_survey [2021-12-18 04:21:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_get_survey [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-18 04:21:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-18 04:21:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 04:21:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_stream [2021-12-18 04:21:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_stream [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_init [2021-12-18 04:21:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_init [2021-12-18 04:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2021-12-18 04:21:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2021-12-18 04:21:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-18 04:21:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-18 04:21:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_control [2021-12-18 04:21:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_control [2021-12-18 04:21:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 04:21:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 04:21:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2021-12-18 04:21:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2021-12-18 04:21:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2021-12-18 04:21:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2021-12-18 04:21:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 04:21:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 04:21:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2021-12-18 04:21:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2021-12-18 04:21:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-18 04:21:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-18 04:21:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 04:21:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 04:21:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_hw_reset [2021-12-18 04:21:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_hw_reset [2021-12-18 04:21:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2021-12-18 04:21:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2021-12-18 04:21:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 04:21:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 04:21:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2021-12-18 04:21:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2021-12-18 04:21:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 04:21:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 04:21:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2021-12-18 04:21:47,082 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2021-12-18 04:21:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_interrupt [2021-12-18 04:21:47,082 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_interrupt [2021-12-18 04:21:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-18 04:21:47,082 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-18 04:21:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 04:21:47,082 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 04:21:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-18 04:21:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-18 04:21:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_conf_tx [2021-12-18 04:21:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_conf_tx [2021-12-18 04:21:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_pre_scan [2021-12-18 04:21:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_pre_scan [2021-12-18 04:21:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data [2021-12-18 04:21:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data [2021-12-18 04:21:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_post_scan [2021-12-18 04:21:47,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_post_scan [2021-12-18 04:21:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_load_fw_image [2021-12-18 04:21:47,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_load_fw_image [2021-12-18 04:21:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_init_txqs [2021-12-18 04:21:47,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_init_txqs [2021-12-18 04:21:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_vif [2021-12-18 04:21:47,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_vif [2021-12-18 04:21:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 04:21:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 04:21:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-12-18 04:21:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-12-18 04:21:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2021-12-18 04:21:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2021-12-18 04:21:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 04:21:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 04:21:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 04:21:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 04:21:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_hdrlen [2021-12-18 04:21:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_hdrlen [2021-12-18 04:21:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_init_firmware [2021-12-18 04:21:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_init_firmware [2021-12-18 04:21:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 04:21:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 04:21:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_enable_sniffer [2021-12-18 04:21:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_enable_sniffer [2021-12-18 04:21:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 04:21:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 04:21:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-18 04:21:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-18 04:21:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-18 04:21:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-18 04:21:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bbp_reg_access [2021-12-18 04:21:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bbp_reg_access [2021-12-18 04:21:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 04:21:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 04:21:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 04:21:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 04:21:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-18 04:21:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-18 04:21:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_rf_antenna [2021-12-18 04:21:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_rf_antenna [2021-12-18 04:21:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_reload_firmware [2021-12-18 04:21:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_reload_firmware [2021-12-18 04:21:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 04:21:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 04:21:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 04:21:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_channel_to_frequency [2021-12-18 04:21:47,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_channel_to_frequency [2021-12-18 04:21:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 04:21:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-18 04:21:47,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-18 04:21:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_dma_header [2021-12-18 04:21:47,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_dma_header [2021-12-18 04:21:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_bss_info_changed [2021-12-18 04:21:47,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_bss_info_changed [2021-12-18 04:21:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_stream [2021-12-18 04:21:47,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_stream [2021-12-18 04:21:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sw_scan_complete [2021-12-18 04:21:47,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sw_scan_complete [2021-12-18 04:21:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_txq_reclaim [2021-12-18 04:21:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_txq_reclaim [2021-12-18 04:21:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_radio_preamble [2021-12-18 04:21:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_radio_preamble [2021-12-18 04:21:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_config [2021-12-18 04:21:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_config [2021-12-18 04:21:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 04:21:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 04:21:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 04:21:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-18 04:21:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-18 04:21:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_txq_deinit [2021-12-18 04:21:47,096 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_txq_deinit [2021-12-18 04:21:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure rxq_refill [2021-12-18 04:21:47,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rxq_refill [2021-12-18 04:21:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 04:21:47,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 04:21:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_process [2021-12-18 04:21:47,099 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_process [2021-12-18 04:21:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_fw_lock [2021-12-18 04:21:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_fw_lock [2021-12-18 04:21:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure __mwl8k_cmd_mac_multicast_adr [2021-12-18 04:21:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __mwl8k_cmd_mac_multicast_adr [2021-12-18 04:21:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_init [2021-12-18 04:21:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_init [2021-12-18 04:21:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 04:21:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 04:21:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-18 04:21:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-18 04:21:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_destroy_ba [2021-12-18 04:21:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_destroy_ba [2021-12-18 04:21:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2021-12-18 04:21:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2021-12-18 04:21:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-18 04:21:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-18 04:21:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-18 04:21:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-18 04:21:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sta_remove [2021-12-18 04:21:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sta_remove [2021-12-18 04:21:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_tx_start [2021-12-18 04:21:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_tx_start [2021-12-18 04:21:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_dma_header [2021-12-18 04:21:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_dma_header [2021-12-18 04:21:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_stop [2021-12-18 04:21:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_stop [2021-12-18 04:21:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_update_mac_addr [2021-12-18 04:21:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_update_mac_addr [2021-12-18 04:21:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 04:21:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 04:21:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-18 04:21:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-18 04:21:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 04:21:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-18 04:21:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-18 04:21:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 04:21:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 04:21:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure __ilog2_u32 [2021-12-18 04:21:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __ilog2_u32 [2021-12-18 04:21:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2021-12-18 04:21:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2021-12-18 04:21:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_encryption_set_cmd_info [2021-12-18 04:21:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_encryption_set_cmd_info [2021-12-18 04:21:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 04:21:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 04:21:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sta_add [2021-12-18 04:21:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sta_add [2021-12-18 04:21:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 04:21:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 04:21:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 04:21:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 04:21:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_mac_addr [2021-12-18 04:21:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_mac_addr [2021-12-18 04:21:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_interface [2021-12-18 04:21:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_interface [2021-12-18 04:21:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-18 04:21:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-18 04:21:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 04:21:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 04:21:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure legacy_rate_mask_to_array [2021-12-18 04:21:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure legacy_rate_mask_to_array [2021-12-18 04:21:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_ampdu_action [2021-12-18 04:21:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_ampdu_action [2021-12-18 04:21:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_refill [2021-12-18 04:21:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_refill [2021-12-18 04:21:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-12-18 04:21:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2021-12-18 04:21:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-18 04:21:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-18 04:21:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-18 04:21:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-18 04:21:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_release_fw [2021-12-18 04:21:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_release_fw [2021-12-18 04:21:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxq_deinit [2021-12-18 04:21:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxq_deinit [2021-12-18 04:21:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 04:21:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 04:21:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_send_fw_load_cmd [2021-12-18 04:21:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_send_fw_load_cmd [2021-12-18 04:21:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-18 04:21:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-18 04:21:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 04:21:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_new_stn_del [2021-12-18 04:21:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_new_stn_del [2021-12-18 04:21:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2021-12-18 04:21:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2021-12-18 04:21:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_lookup_stream [2021-12-18 04:21:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_lookup_stream [2021-12-18 04:21:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-12-18 04:21:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-18 04:21:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-18 04:21:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2021-12-18 04:21:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2021-12-18 04:21:48,112 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 04:21:48,115 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 04:21:52,559 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 04:22:00,824 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 04:22:00,849 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 04:22:00,849 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-18 04:22:00,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:22:00 BoogieIcfgContainer [2021-12-18 04:22:00,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 04:22:00,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 04:22:00,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 04:22:00,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 04:22:00,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:21:42" (1/3) ... [2021-12-18 04:22:00,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92e77f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:22:00, skipping insertion in model container [2021-12-18 04:22:00,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:21:46" (2/3) ... [2021-12-18 04:22:00,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92e77f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:22:00, skipping insertion in model container [2021-12-18 04:22:00,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:22:00" (3/3) ... [2021-12-18 04:22:00,862 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-12-18 04:22:00,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 04:22:00,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 04:22:00,926 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 04:22:00,930 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 04:22:00,931 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 04:22:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 3046 states, 2163 states have (on average 1.387424872861766) internal successors, (3001), 2233 states have internal predecessors, (3001), 722 states have call successors, (722), 160 states have call predecessors, (722), 159 states have return successors, (712), 702 states have call predecessors, (712), 712 states have call successors, (712) [2021-12-18 04:22:01,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-18 04:22:01,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:22:01,008 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 7, 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] [2021-12-18 04:22:01,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:22:01,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:22:01,013 INFO L85 PathProgramCache]: Analyzing trace with hash -295509175, now seen corresponding path program 1 times [2021-12-18 04:22:01,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:22:01,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942650931] [2021-12-18 04:22:01,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:22:01,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:22:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:22:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:22:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:22:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:22:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:22:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:22:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:22:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:22:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:22:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:22:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:22:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:22:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:22:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:22:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:22:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:22:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:22:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:22:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:22:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:22:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:22:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:22:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:22:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:22:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:22:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:22:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:22:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:22:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:22:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:22:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:02,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2021-12-18 04:22:02,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:22:02,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942650931] [2021-12-18 04:22:02,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942650931] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:22:02,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:22:02,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:22:02,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423428842] [2021-12-18 04:22:02,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:22:02,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:22:02,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:22:02,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:22:02,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:22:02,215 INFO L87 Difference]: Start difference. First operand has 3046 states, 2163 states have (on average 1.387424872861766) internal successors, (3001), 2233 states have internal predecessors, (3001), 722 states have call successors, (722), 160 states have call predecessors, (722), 159 states have return successors, (712), 702 states have call predecessors, (712), 712 states have call successors, (712) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2021-12-18 04:22:05,973 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 04:22:07,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:22:11,679 WARN L534 Checker$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 04:22:13,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:22:19,214 WARN L534 Checker$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 04:22:21,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:22:25,278 WARN L534 Checker$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 04:22:27,304 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 04:22:35,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:22:35,252 INFO L93 Difference]: Finished difference Result 10834 states and 16911 transitions. [2021-12-18 04:22:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 04:22:35,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 199 [2021-12-18 04:22:35,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:22:35,333 INFO L225 Difference]: With dead ends: 10834 [2021-12-18 04:22:35,333 INFO L226 Difference]: Without dead ends: 7733 [2021-12-18 04:22:35,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 04:22:35,374 INFO L933 BasicCegarLoop]: 4780 mSDtfsCounter, 10140 mSDsluCounter, 7134 mSDsCounter, 0 mSdLazyCounter, 6214 mSolverCounterSat, 5063 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10659 SdHoareTripleChecker+Valid, 11914 SdHoareTripleChecker+Invalid, 11285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5063 IncrementalHoareTripleChecker+Valid, 6214 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2021-12-18 04:22:35,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10659 Valid, 11914 Invalid, 11285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5063 Valid, 6214 Invalid, 8 Unknown, 0 Unchecked, 32.2s Time] [2021-12-18 04:22:35,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7733 states. [2021-12-18 04:22:35,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7733 to 5947. [2021-12-18 04:22:35,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 4241 states have (on average 1.3791558594671067) internal successors, (5849), 4357 states have internal predecessors, (5849), 1389 states have call successors, (1389), 317 states have call predecessors, (1389), 316 states have return successors, (1388), 1368 states have call predecessors, (1388), 1388 states have call successors, (1388) [2021-12-18 04:22:35,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 8626 transitions. [2021-12-18 04:22:35,809 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 8626 transitions. Word has length 199 [2021-12-18 04:22:35,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:22:35,813 INFO L470 AbstractCegarLoop]: Abstraction has 5947 states and 8626 transitions. [2021-12-18 04:22:35,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2021-12-18 04:22:35,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 8626 transitions. [2021-12-18 04:22:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-18 04:22:35,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:22:35,826 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 7, 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] [2021-12-18 04:22:35,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 04:22:35,826 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:22:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:22:35,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1626075355, now seen corresponding path program 1 times [2021-12-18 04:22:35,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:22:35,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176694290] [2021-12-18 04:22:35,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:22:35,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:22:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:22:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:22:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:22:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:22:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:22:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:22:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:22:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:22:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:22:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:22:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:22:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:22:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:22:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:22:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:22:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:22:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:22:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:22:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:22:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:22:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:22:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:22:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:22:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:22:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:22:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:22:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:22:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:22:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:22:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:22:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:22:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2021-12-18 04:22:36,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:22:36,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176694290] [2021-12-18 04:22:36,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176694290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:22:36,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:22:36,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:22:36,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213800233] [2021-12-18 04:22:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:22:36,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:22:36,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:22:36,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:22:36,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:22:36,700 INFO L87 Difference]: Start difference. First operand 5947 states and 8626 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 04:22:41,892 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 04:22:43,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:22:46,390 WARN L534 Checker$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 04:22:48,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:22:53,349 WARN L534 Checker$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 04:22:55,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:22:57,451 WARN L534 Checker$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 04:22:59,469 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 04:23:12,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:23:12,347 INFO L93 Difference]: Finished difference Result 21274 states and 32156 transitions. [2021-12-18 04:23:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 04:23:12,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 202 [2021-12-18 04:23:12,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:23:12,491 INFO L225 Difference]: With dead ends: 21274 [2021-12-18 04:23:12,492 INFO L226 Difference]: Without dead ends: 15386 [2021-12-18 04:23:12,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-18 04:23:12,547 INFO L933 BasicCegarLoop]: 4769 mSDtfsCounter, 10177 mSDsluCounter, 15278 mSDsCounter, 0 mSdLazyCounter, 9340 mSolverCounterSat, 5100 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10706 SdHoareTripleChecker+Valid, 20047 SdHoareTripleChecker+Invalid, 14448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5100 IncrementalHoareTripleChecker+Valid, 9340 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:23:12,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10706 Valid, 20047 Invalid, 14448 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5100 Valid, 9340 Invalid, 8 Unknown, 0 Unchecked, 34.8s Time] [2021-12-18 04:23:12,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15386 states. [2021-12-18 04:23:13,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15386 to 11872. [2021-12-18 04:23:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11872 states, 8480 states have (on average 1.380306603773585) internal successors, (11705), 8720 states have internal predecessors, (11705), 2749 states have call successors, (2749), 633 states have call predecessors, (2749), 642 states have return successors, (2818), 2710 states have call predecessors, (2818), 2748 states have call successors, (2818) [2021-12-18 04:23:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11872 states to 11872 states and 17272 transitions. [2021-12-18 04:23:13,283 INFO L78 Accepts]: Start accepts. Automaton has 11872 states and 17272 transitions. Word has length 202 [2021-12-18 04:23:13,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:23:13,284 INFO L470 AbstractCegarLoop]: Abstraction has 11872 states and 17272 transitions. [2021-12-18 04:23:13,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 04:23:13,286 INFO L276 IsEmpty]: Start isEmpty. Operand 11872 states and 17272 transitions. [2021-12-18 04:23:13,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-18 04:23:13,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:23:13,299 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:23:13,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 04:23:13,299 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:23:13,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:23:13,300 INFO L85 PathProgramCache]: Analyzing trace with hash -304879233, now seen corresponding path program 1 times [2021-12-18 04:23:13,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:23:13,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198030064] [2021-12-18 04:23:13,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:23:13,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:23:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:23:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:23:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:23:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:23:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:23:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:23:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:23:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:23:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:23:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:23:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:23:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:23:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:23:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:23:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:23:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:23:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:23:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:23:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:23:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:23:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:23:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:23:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:23:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:23:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:23:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:23:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:23:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:23:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:23:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:23:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:23:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:23:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:23:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:13,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2021-12-18 04:23:13,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:23:13,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198030064] [2021-12-18 04:23:13,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198030064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:23:13,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:23:13,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:23:13,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662720580] [2021-12-18 04:23:13,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:23:13,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:23:13,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:23:13,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:23:13,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:23:13,924 INFO L87 Difference]: Start difference. First operand 11872 states and 17272 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 04:23:18,620 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 04:23:20,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:23:22,661 WARN L534 Checker$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 04:23:27,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:23:29,702 WARN L534 Checker$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 04:23:31,722 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 04:23:41,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:23:41,313 INFO L93 Difference]: Finished difference Result 31796 states and 47363 transitions. [2021-12-18 04:23:41,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 04:23:41,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 238 [2021-12-18 04:23:41,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:23:41,427 INFO L225 Difference]: With dead ends: 31796 [2021-12-18 04:23:41,428 INFO L226 Difference]: Without dead ends: 19988 [2021-12-18 04:23:41,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-12-18 04:23:41,482 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 5022 mSDsluCounter, 6935 mSDsCounter, 0 mSdLazyCounter, 8436 mSolverCounterSat, 2975 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5325 SdHoareTripleChecker+Valid, 11418 SdHoareTripleChecker+Invalid, 11417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2975 IncrementalHoareTripleChecker+Valid, 8436 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2021-12-18 04:23:41,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5325 Valid, 11418 Invalid, 11417 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2975 Valid, 8436 Invalid, 6 Unknown, 0 Unchecked, 26.6s Time] [2021-12-18 04:23:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19988 states. [2021-12-18 04:23:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19988 to 15840. [2021-12-18 04:23:42,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15840 states, 11334 states have (on average 1.3722428092465149) internal successors, (15553), 11674 states have internal predecessors, (15553), 3523 states have call successors, (3523), 923 states have call predecessors, (3523), 982 states have return successors, (3890), 3512 states have call predecessors, (3890), 3522 states have call successors, (3890) [2021-12-18 04:23:42,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15840 states to 15840 states and 22966 transitions. [2021-12-18 04:23:42,288 INFO L78 Accepts]: Start accepts. Automaton has 15840 states and 22966 transitions. Word has length 238 [2021-12-18 04:23:42,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:23:42,288 INFO L470 AbstractCegarLoop]: Abstraction has 15840 states and 22966 transitions. [2021-12-18 04:23:42,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 04:23:42,289 INFO L276 IsEmpty]: Start isEmpty. Operand 15840 states and 22966 transitions. [2021-12-18 04:23:42,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-12-18 04:23:42,306 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:23:42,306 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:23:42,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 04:23:42,306 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:23:42,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:23:42,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1206045788, now seen corresponding path program 1 times [2021-12-18 04:23:42,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:23:42,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179224384] [2021-12-18 04:23:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:23:42,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:23:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:23:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:23:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:23:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:23:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:23:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:23:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:23:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:23:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:23:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:23:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:23:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:23:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:23:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:23:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:23:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:23:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:23:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:23:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:23:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:23:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:23:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:23:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:23:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:23:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:23:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:23:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:23:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:23:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:23:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:23:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:23:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:23:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:23:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:23:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 04:23:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:23:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:23:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:23:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2021-12-18 04:23:42,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:23:42,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179224384] [2021-12-18 04:23:42,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179224384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:23:42,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:23:42,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:23:42,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585516018] [2021-12-18 04:23:42,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:23:42,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:23:42,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:23:42,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:23:42,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:23:42,917 INFO L87 Difference]: Start difference. First operand 15840 states and 22966 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 04:23:47,997 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 04:23:50,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:23:52,164 WARN L534 Checker$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 04:23:54,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:23:59,285 WARN L534 Checker$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 04:24:01,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:24:03,379 WARN L534 Checker$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 04:24:05,405 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 04:24:17,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:24:17,793 INFO L93 Difference]: Finished difference Result 50932 states and 76091 transitions. [2021-12-18 04:24:17,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 04:24:17,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 274 [2021-12-18 04:24:17,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:24:18,123 INFO L225 Difference]: With dead ends: 50932 [2021-12-18 04:24:18,124 INFO L226 Difference]: Without dead ends: 35156 [2021-12-18 04:24:18,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-12-18 04:24:18,188 INFO L933 BasicCegarLoop]: 6210 mSDtfsCounter, 11162 mSDsluCounter, 7443 mSDsCounter, 0 mSdLazyCounter, 7991 mSolverCounterSat, 6206 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11815 SdHoareTripleChecker+Valid, 13653 SdHoareTripleChecker+Invalid, 14205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6206 IncrementalHoareTripleChecker+Valid, 7991 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2021-12-18 04:24:18,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11815 Valid, 13653 Invalid, 14205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6206 Valid, 7991 Invalid, 8 Unknown, 0 Unchecked, 33.7s Time] [2021-12-18 04:24:18,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35156 states. [2021-12-18 04:24:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35156 to 27856. [2021-12-18 04:24:19,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27856 states, 19974 states have (on average 1.372133773906078) internal successors, (27407), 20582 states have internal predecessors, (27407), 6213 states have call successors, (6213), 1555 states have call predecessors, (6213), 1668 states have return successors, (6905), 6190 states have call predecessors, (6905), 6212 states have call successors, (6905) [2021-12-18 04:24:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27856 states to 27856 states and 40525 transitions. [2021-12-18 04:24:19,537 INFO L78 Accepts]: Start accepts. Automaton has 27856 states and 40525 transitions. Word has length 274 [2021-12-18 04:24:19,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:24:19,538 INFO L470 AbstractCegarLoop]: Abstraction has 27856 states and 40525 transitions. [2021-12-18 04:24:19,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 04:24:19,538 INFO L276 IsEmpty]: Start isEmpty. Operand 27856 states and 40525 transitions. [2021-12-18 04:24:19,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-12-18 04:24:19,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:24:19,557 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:24:19,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 04:24:19,557 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:24:19,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:24:19,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1161099994, now seen corresponding path program 1 times [2021-12-18 04:24:19,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:24:19,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239372162] [2021-12-18 04:24:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:24:19,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:24:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:24:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:24:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:24:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:24:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:24:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:24:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:24:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:24:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:24:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:24:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:24:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:24:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:24:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:24:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:24:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:24:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:24:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:24:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:24:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:24:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:24:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:24:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:24:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:24:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:24:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:24:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:24:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:24:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:24:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:24:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:24:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:24:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:24:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:24:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 04:24:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:24:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:24:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2021-12-18 04:24:20,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:24:20,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239372162] [2021-12-18 04:24:20,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239372162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:24:20,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:24:20,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:24:20,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250583233] [2021-12-18 04:24:20,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:24:20,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:24:20,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:24:20,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:24:20,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:24:20,133 INFO L87 Difference]: Start difference. First operand 27856 states and 40525 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2021-12-18 04:24:24,858 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 04:24:26,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:24:31,197 WARN L534 Checker$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 04:24:33,231 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 04:24:40,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:24:40,368 INFO L93 Difference]: Finished difference Result 49660 states and 74639 transitions. [2021-12-18 04:24:40,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 04:24:40,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 274 [2021-12-18 04:24:40,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:24:40,570 INFO L225 Difference]: With dead ends: 49660 [2021-12-18 04:24:40,570 INFO L226 Difference]: Without dead ends: 35156 [2021-12-18 04:24:40,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-18 04:24:40,649 INFO L933 BasicCegarLoop]: 4210 mSDtfsCounter, 5924 mSDsluCounter, 6212 mSDsCounter, 0 mSdLazyCounter, 5327 mSolverCounterSat, 4276 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6106 SdHoareTripleChecker+Valid, 10422 SdHoareTripleChecker+Invalid, 9607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4276 IncrementalHoareTripleChecker+Valid, 5327 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-12-18 04:24:40,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6106 Valid, 10422 Invalid, 9607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4276 Valid, 5327 Invalid, 4 Unknown, 0 Unchecked, 19.2s Time] [2021-12-18 04:24:40,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35156 states. [2021-12-18 04:24:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35156 to 27868. [2021-12-18 04:24:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27868 states, 19986 states have (on average 1.3719103372360653) internal successors, (27419), 20594 states have internal predecessors, (27419), 6213 states have call successors, (6213), 1555 states have call predecessors, (6213), 1668 states have return successors, (6905), 6190 states have call predecessors, (6905), 6212 states have call successors, (6905) [2021-12-18 04:24:42,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27868 states to 27868 states and 40537 transitions. [2021-12-18 04:24:42,122 INFO L78 Accepts]: Start accepts. Automaton has 27868 states and 40537 transitions. Word has length 274 [2021-12-18 04:24:42,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:24:42,126 INFO L470 AbstractCegarLoop]: Abstraction has 27868 states and 40537 transitions. [2021-12-18 04:24:42,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2021-12-18 04:24:42,126 INFO L276 IsEmpty]: Start isEmpty. Operand 27868 states and 40537 transitions. [2021-12-18 04:24:42,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-12-18 04:24:42,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:24:42,143 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:24:42,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 04:24:42,144 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:24:42,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:24:42,144 INFO L85 PathProgramCache]: Analyzing trace with hash 94580345, now seen corresponding path program 1 times [2021-12-18 04:24:42,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:24:42,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315987883] [2021-12-18 04:24:42,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:24:42,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:24:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:24:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:24:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:24:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:24:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:24:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:24:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:24:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:24:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:24:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:24:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:24:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:24:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:24:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:24:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:24:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:24:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:24:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:24:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:24:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:24:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:24:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:24:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:24:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:24:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:24:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:24:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:24:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:24:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:24:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:24:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:24:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:24:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:24:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:24:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 04:24:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:24:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:24:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:24:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2021-12-18 04:24:42,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:24:42,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315987883] [2021-12-18 04:24:42,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315987883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:24:42,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:24:42,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 04:24:42,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048657153] [2021-12-18 04:24:42,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:24:42,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 04:24:42,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:24:42,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 04:24:42,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-18 04:24:42,831 INFO L87 Difference]: Start difference. First operand 27868 states and 40537 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 04:24:49,617 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 04:24:51,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:24:58,025 WARN L534 Checker$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 04:25:00,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:25:14,950 WARN L534 Checker$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 04:25:20,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:25:27,241 WARN L534 Checker$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 04:25:29,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:25:31,297 WARN L534 Checker$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 04:25:39,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:25:41,687 WARN L534 Checker$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 04:25:43,738 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 04:25:56,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:25:56,976 INFO L93 Difference]: Finished difference Result 72378 states and 107865 transitions. [2021-12-18 04:25:56,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-18 04:25:56,977 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) Word has length 276 [2021-12-18 04:25:56,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:25:57,275 INFO L225 Difference]: With dead ends: 72378 [2021-12-18 04:25:57,275 INFO L226 Difference]: Without dead ends: 44574 [2021-12-18 04:25:57,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-12-18 04:25:57,384 INFO L933 BasicCegarLoop]: 5614 mSDtfsCounter, 12846 mSDsluCounter, 9184 mSDsCounter, 0 mSdLazyCounter, 38190 mSolverCounterSat, 7097 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14152 SdHoareTripleChecker+Valid, 14798 SdHoareTripleChecker+Invalid, 45299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7097 IncrementalHoareTripleChecker+Valid, 38190 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.9s IncrementalHoareTripleChecker+Time [2021-12-18 04:25:57,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14152 Valid, 14798 Invalid, 45299 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7097 Valid, 38190 Invalid, 12 Unknown, 0 Unchecked, 71.9s Time] [2021-12-18 04:25:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44574 states. [2021-12-18 04:25:58,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44574 to 33940. [2021-12-18 04:25:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33940 states, 24206 states have (on average 1.3597042055688673) internal successors, (32913), 24872 states have internal predecessors, (32913), 7693 states have call successors, (7693), 1981 states have call predecessors, (7693), 2040 states have return successors, (7992), 7620 states have call predecessors, (7992), 7692 states have call successors, (7992) [2021-12-18 04:25:58,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33940 states to 33940 states and 48598 transitions. [2021-12-18 04:25:58,906 INFO L78 Accepts]: Start accepts. Automaton has 33940 states and 48598 transitions. Word has length 276 [2021-12-18 04:25:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:25:58,907 INFO L470 AbstractCegarLoop]: Abstraction has 33940 states and 48598 transitions. [2021-12-18 04:25:58,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 04:25:58,909 INFO L276 IsEmpty]: Start isEmpty. Operand 33940 states and 48598 transitions. [2021-12-18 04:25:58,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-12-18 04:25:58,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:25:58,992 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:58,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 04:25:58,993 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:25:58,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:25:58,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1991940677, now seen corresponding path program 1 times [2021-12-18 04:25:58,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:25:58,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234109413] [2021-12-18 04:25:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:25:58,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:25:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:25:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:25:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:25:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:25:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:25:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:25:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:25:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:25:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:25:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:25:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:25:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:25:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:25:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:25:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:25:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:25:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:25:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:25:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:25:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:25:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:25:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:25:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:25:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:25:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:25:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:25:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:25:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:25:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:25:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:25:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:25:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:25:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:25:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:25:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 04:25:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:25:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:25:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:25:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:25:59,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:25:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:26:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:26:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 04:26:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:26:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:26:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:26:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 04:26:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:26:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:26:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 04:26:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 04:26:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 04:26:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:26:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 04:26:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:26:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:26:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:26:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 04:26:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:26:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:26:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2021-12-18 04:26:00,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:26:00,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234109413] [2021-12-18 04:26:00,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234109413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:26:00,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:26:00,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 04:26:00,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073966912] [2021-12-18 04:26:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:26:00,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 04:26:00,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:26:00,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 04:26:00,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-18 04:26:00,411 INFO L87 Difference]: Start difference. First operand 33940 states and 48598 transitions. Second operand has 11 states, 11 states have (on average 20.727272727272727) internal successors, (228), 4 states have internal predecessors, (228), 2 states have call successors, (63), 9 states have call predecessors, (63), 3 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-12-18 04:26:06,242 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 04:26:11,259 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 04:26:21,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:26:21,797 INFO L93 Difference]: Finished difference Result 78280 states and 115722 transitions. [2021-12-18 04:26:21,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 04:26:21,798 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.727272727272727) internal successors, (228), 4 states have internal predecessors, (228), 2 states have call successors, (63), 9 states have call predecessors, (63), 3 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 490 [2021-12-18 04:26:21,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:26:22,048 INFO L225 Difference]: With dead ends: 78280 [2021-12-18 04:26:22,048 INFO L226 Difference]: Without dead ends: 44404 [2021-12-18 04:26:22,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-12-18 04:26:22,207 INFO L933 BasicCegarLoop]: 4187 mSDtfsCounter, 7008 mSDsluCounter, 9484 mSDsCounter, 0 mSdLazyCounter, 7421 mSolverCounterSat, 5318 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7187 SdHoareTripleChecker+Valid, 13671 SdHoareTripleChecker+Invalid, 12741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5318 IncrementalHoareTripleChecker+Valid, 7421 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:26:22,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7187 Valid, 13671 Invalid, 12741 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5318 Valid, 7421 Invalid, 2 Unknown, 0 Unchecked, 19.5s Time] [2021-12-18 04:26:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44404 states. [2021-12-18 04:26:23,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44404 to 34052. [2021-12-18 04:26:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34052 states, 24286 states have (on average 1.3598369430947872) internal successors, (33025), 24968 states have internal predecessors, (33025), 7709 states have call successors, (7709), 1997 states have call predecessors, (7709), 2056 states have return successors, (8008), 7636 states have call predecessors, (8008), 7708 states have call successors, (8008) [2021-12-18 04:26:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34052 states to 34052 states and 48742 transitions. [2021-12-18 04:26:23,874 INFO L78 Accepts]: Start accepts. Automaton has 34052 states and 48742 transitions. Word has length 490 [2021-12-18 04:26:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:26:23,875 INFO L470 AbstractCegarLoop]: Abstraction has 34052 states and 48742 transitions. [2021-12-18 04:26:23,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.727272727272727) internal successors, (228), 4 states have internal predecessors, (228), 2 states have call successors, (63), 9 states have call predecessors, (63), 3 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-12-18 04:26:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 34052 states and 48742 transitions. [2021-12-18 04:26:23,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-12-18 04:26:23,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:26:23,946 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:23,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 04:26:23,946 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:26:23,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:26:23,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1746205211, now seen corresponding path program 1 times [2021-12-18 04:26:23,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:26:23,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463533638] [2021-12-18 04:26:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:26:23,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:26:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:26:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:26:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:26:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:26:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:26:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:26:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:26:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:26:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:26:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:26:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:26:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:26:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:26:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:26:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:26:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:26:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:26:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:26:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:26:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:26:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:26:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:26:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:26:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:26:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:26:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:26:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:26:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:26:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:26:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:26:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:26:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:26:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:26:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:26:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 04:26:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:26:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:26:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:26:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:26:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:26:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 04:26:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:26:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:26:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:26:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:24,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 04:26:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:26:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:26:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 04:26:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 04:26:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 04:26:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:26:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 04:26:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:26:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:26:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:26:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 04:26:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:26:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:26:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2021-12-18 04:26:25,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:26:25,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463533638] [2021-12-18 04:26:25,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463533638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:26:25,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:26:25,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-18 04:26:25,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062136577] [2021-12-18 04:26:25,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:26:25,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-18 04:26:25,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:26:25,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-18 04:26:25,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-18 04:26:25,291 INFO L87 Difference]: Start difference. First operand 34052 states and 48742 transitions. Second operand has 12 states, 12 states have (on average 19.0) internal successors, (228), 5 states have internal predecessors, (228), 4 states have call successors, (63), 9 states have call predecessors, (63), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2021-12-18 04:26:31,173 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 04:26:33,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:26:38,635 WARN L534 Checker$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 04:26:40,665 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 04:26:52,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:26:52,592 INFO L93 Difference]: Finished difference Result 79468 states and 117774 transitions. [2021-12-18 04:26:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 04:26:52,593 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.0) internal successors, (228), 5 states have internal predecessors, (228), 4 states have call successors, (63), 9 states have call predecessors, (63), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 490 [2021-12-18 04:26:52,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:26:52,846 INFO L225 Difference]: With dead ends: 79468 [2021-12-18 04:26:52,846 INFO L226 Difference]: Without dead ends: 45056 [2021-12-18 04:26:52,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2021-12-18 04:26:52,976 INFO L933 BasicCegarLoop]: 4168 mSDtfsCounter, 3374 mSDsluCounter, 11071 mSDsCounter, 0 mSdLazyCounter, 9030 mSolverCounterSat, 2420 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3546 SdHoareTripleChecker+Valid, 15239 SdHoareTripleChecker+Invalid, 11454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2420 IncrementalHoareTripleChecker+Valid, 9030 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:26:52,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3546 Valid, 15239 Invalid, 11454 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2420 Valid, 9030 Invalid, 4 Unknown, 0 Unchecked, 25.0s Time] [2021-12-18 04:26:53,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45056 states. [2021-12-18 04:26:54,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45056 to 34248. [2021-12-18 04:26:54,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34248 states, 24418 states have (on average 1.3603489229257106) internal successors, (33217), 25104 states have internal predecessors, (33217), 7769 states have call successors, (7769), 2001 states have call predecessors, (7769), 2060 states have return successors, (8068), 7696 states have call predecessors, (8068), 7768 states have call successors, (8068) [2021-12-18 04:26:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34248 states to 34248 states and 49054 transitions. [2021-12-18 04:26:54,672 INFO L78 Accepts]: Start accepts. Automaton has 34248 states and 49054 transitions. Word has length 490 [2021-12-18 04:26:54,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:26:54,676 INFO L470 AbstractCegarLoop]: Abstraction has 34248 states and 49054 transitions. [2021-12-18 04:26:54,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.0) internal successors, (228), 5 states have internal predecessors, (228), 4 states have call successors, (63), 9 states have call predecessors, (63), 3 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2021-12-18 04:26:54,676 INFO L276 IsEmpty]: Start isEmpty. Operand 34248 states and 49054 transitions. [2021-12-18 04:26:54,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-12-18 04:26:54,741 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:26:54,742 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:54,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 04:26:54,742 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:26:54,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:26:54,743 INFO L85 PathProgramCache]: Analyzing trace with hash 194279008, now seen corresponding path program 1 times [2021-12-18 04:26:54,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:26:54,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733277471] [2021-12-18 04:26:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:26:54,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:26:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:54,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:26:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:26:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:54,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:26:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:26:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:26:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:26:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:26:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:26:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:26:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:26:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:26:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:26:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:26:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:26:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:26:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:26:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:26:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:26:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:26:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:26:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:26:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:26:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:26:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:26:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:26:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:26:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:26:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:26:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:26:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:26:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:26:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:26:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:26:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:26:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 04:26:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:26:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 04:26:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:26:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:26:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:26:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 04:26:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:26:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:26:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:26:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 04:26:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:26:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:26:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 04:26:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 04:26:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 04:26:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:26:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 04:26:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:26:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:26:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:26:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:55,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 04:26:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:56,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:26:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:26:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:26:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:26:56,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2021-12-18 04:26:56,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:26:56,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733277471] [2021-12-18 04:26:56,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733277471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:26:56,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:26:56,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 04:26:56,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30952669] [2021-12-18 04:26:56,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:26:56,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 04:26:56,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:26:56,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 04:26:56,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-18 04:26:56,057 INFO L87 Difference]: Start difference. First operand 34248 states and 49054 transitions. Second operand has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 4 states have internal predecessors, (229), 2 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-12-18 04:27:02,092 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 04:27:04,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:06,159 WARN L534 Checker$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 04:27:11,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:13,865 WARN L534 Checker$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 04:27:15,893 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 04:27:28,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:27:28,327 INFO L93 Difference]: Finished difference Result 80728 states and 120222 transitions. [2021-12-18 04:27:28,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 04:27:28,328 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 4 states have internal predecessors, (229), 2 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 491 [2021-12-18 04:27:28,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:27:28,547 INFO L225 Difference]: With dead ends: 80728 [2021-12-18 04:27:28,547 INFO L226 Difference]: Without dead ends: 46544 [2021-12-18 04:27:28,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-12-18 04:27:28,684 INFO L933 BasicCegarLoop]: 4217 mSDtfsCounter, 4477 mSDsluCounter, 10395 mSDsCounter, 0 mSdLazyCounter, 9312 mSolverCounterSat, 3264 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 14612 SdHoareTripleChecker+Invalid, 12582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3264 IncrementalHoareTripleChecker+Valid, 9312 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:27:28,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4665 Valid, 14612 Invalid, 12582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3264 Valid, 9312 Invalid, 6 Unknown, 0 Unchecked, 29.8s Time] [2021-12-18 04:27:28,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46544 states. [2021-12-18 04:27:30,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46544 to 34344. [2021-12-18 04:27:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34344 states, 24490 states have (on average 1.359289505920784) internal successors, (33289), 25176 states have internal predecessors, (33289), 7793 states have call successors, (7793), 2001 states have call predecessors, (7793), 2060 states have return successors, (8092), 7720 states have call predecessors, (8092), 7792 states have call successors, (8092) [2021-12-18 04:27:30,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34344 states to 34344 states and 49174 transitions. [2021-12-18 04:27:30,424 INFO L78 Accepts]: Start accepts. Automaton has 34344 states and 49174 transitions. Word has length 491 [2021-12-18 04:27:30,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:27:30,425 INFO L470 AbstractCegarLoop]: Abstraction has 34344 states and 49174 transitions. [2021-12-18 04:27:30,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 4 states have internal predecessors, (229), 2 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-12-18 04:27:30,425 INFO L276 IsEmpty]: Start isEmpty. Operand 34344 states and 49174 transitions. [2021-12-18 04:27:30,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-12-18 04:27:30,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:27:30,485 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:30,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 04:27:30,485 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:27:30,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:27:30,486 INFO L85 PathProgramCache]: Analyzing trace with hash 815135509, now seen corresponding path program 1 times [2021-12-18 04:27:30,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:27:30,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401682773] [2021-12-18 04:27:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:27:30,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:27:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:27:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:27:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:27:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:27:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:27:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:27:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:27:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:27:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:27:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:27:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:27:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:27:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:27:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:27:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:27:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:27:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:27:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:27:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:27:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:27:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:27:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:27:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:27:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:27:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:27:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:27:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:27:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:27:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:27:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:27:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:27:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:27:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:27:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:27:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 04:27:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:27:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:27:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:27:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:27:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:27:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:27:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 04:27:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:27:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:27:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:27:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:27:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:27:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 04:27:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:27:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:27:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:27:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:27:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 04:27:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 04:27:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 04:27:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:27:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:27:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 04:27:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:27:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:27:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:27:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:27:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 04:27:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:27:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:27:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:27:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:27:31,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2021-12-18 04:27:31,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:27:31,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401682773] [2021-12-18 04:27:31,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401682773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:27:31,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:27:31,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 04:27:31,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372182036] [2021-12-18 04:27:31,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:27:31,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 04:27:31,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:27:31,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 04:27:31,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-12-18 04:27:31,852 INFO L87 Difference]: Start difference. First operand 34344 states and 49174 transitions. Second operand has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 4 states have internal predecessors, (229), 3 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-12-18 04:27:38,960 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 04:27:40,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:43,010 WARN L534 Checker$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 04:27:45,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:51,764 WARN L534 Checker$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 04:27:53,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:27:55,824 WARN L534 Checker$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 04:27:57,853 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 04:28:14,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:28:14,670 INFO L93 Difference]: Finished difference Result 81616 states and 121614 transitions. [2021-12-18 04:28:14,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 04:28:14,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 4 states have internal predecessors, (229), 3 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 491 [2021-12-18 04:28:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:28:15,020 INFO L225 Difference]: With dead ends: 81616 [2021-12-18 04:28:15,020 INFO L226 Difference]: Without dead ends: 47336 [2021-12-18 04:28:15,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-12-18 04:28:15,102 INFO L933 BasicCegarLoop]: 4200 mSDtfsCounter, 1816 mSDsluCounter, 11050 mSDsCounter, 0 mSdLazyCounter, 11917 mSolverCounterSat, 1166 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 15250 SdHoareTripleChecker+Invalid, 13091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1166 IncrementalHoareTripleChecker+Valid, 11917 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:28:15,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2013 Valid, 15250 Invalid, 13091 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1166 Valid, 11917 Invalid, 8 Unknown, 0 Unchecked, 40.1s Time] [2021-12-18 04:28:15,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47336 states. [2021-12-18 04:28:16,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47336 to 34400. [2021-12-18 04:28:16,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34400 states, 24546 states have (on average 1.3589586898068933) internal successors, (33357), 25232 states have internal predecessors, (33357), 7793 states have call successors, (7793), 2001 states have call predecessors, (7793), 2060 states have return successors, (8092), 7720 states have call predecessors, (8092), 7792 states have call successors, (8092) [2021-12-18 04:28:16,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34400 states to 34400 states and 49242 transitions. [2021-12-18 04:28:16,672 INFO L78 Accepts]: Start accepts. Automaton has 34400 states and 49242 transitions. Word has length 491 [2021-12-18 04:28:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:28:16,673 INFO L470 AbstractCegarLoop]: Abstraction has 34400 states and 49242 transitions. [2021-12-18 04:28:16,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 4 states have internal predecessors, (229), 3 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-12-18 04:28:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 34400 states and 49242 transitions. [2021-12-18 04:28:16,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2021-12-18 04:28:16,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:28:16,728 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:16,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 04:28:16,729 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:28:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:28:16,730 INFO L85 PathProgramCache]: Analyzing trace with hash -886515603, now seen corresponding path program 1 times [2021-12-18 04:28:16,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:28:16,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647737547] [2021-12-18 04:28:16,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:28:16,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:28:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:28:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:28:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:28:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:28:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:28:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:28:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:28:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:28:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:28:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:28:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:28:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:28:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:28:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:28:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:28:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:28:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:28:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:28:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:28:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:28:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:28:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:28:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:28:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:28:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:28:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:28:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:28:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:28:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:28:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:28:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:28:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:28:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:28:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:28:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 04:28:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:28:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:28:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:28:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:28:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:28:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 04:28:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:28:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:28:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:28:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 04:28:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:28:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:28:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 04:28:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 04:28:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 04:28:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 04:28:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:28:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 04:28:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:28:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:28:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:28:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 04:28:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:28:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:28:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:18,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2021-12-18 04:28:18,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:28:18,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647737547] [2021-12-18 04:28:18,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647737547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:28:18,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:28:18,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-18 04:28:18,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113288866] [2021-12-18 04:28:18,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:28:18,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-18 04:28:18,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:28:18,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-18 04:28:18,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-12-18 04:28:18,297 INFO L87 Difference]: Start difference. First operand 34400 states and 49242 transitions. Second operand has 16 states, 16 states have (on average 14.625) internal successors, (234), 8 states have internal predecessors, (234), 4 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) [2021-12-18 04:28:27,418 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 04:28:34,850 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 04:28:53,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:28:53,705 INFO L93 Difference]: Finished difference Result 85324 states and 127766 transitions. [2021-12-18 04:28:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-12-18 04:28:53,707 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.625) internal successors, (234), 8 states have internal predecessors, (234), 4 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) Word has length 498 [2021-12-18 04:28:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:28:53,905 INFO L225 Difference]: With dead ends: 85324 [2021-12-18 04:28:53,905 INFO L226 Difference]: Without dead ends: 49740 [2021-12-18 04:28:53,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=649, Invalid=2773, Unknown=0, NotChecked=0, Total=3422 [2021-12-18 04:28:54,000 INFO L933 BasicCegarLoop]: 4243 mSDtfsCounter, 3379 mSDsluCounter, 25407 mSDsCounter, 0 mSdLazyCounter, 18434 mSolverCounterSat, 2901 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 29650 SdHoareTripleChecker+Invalid, 21337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 18434 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:28:54,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3559 Valid, 29650 Invalid, 21337 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2901 Valid, 18434 Invalid, 2 Unknown, 0 Unchecked, 30.5s Time] [2021-12-18 04:28:54,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49740 states. [2021-12-18 04:28:55,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49740 to 34616. [2021-12-18 04:28:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34616 states, 24702 states have (on average 1.358634928345883) internal successors, (33561), 25388 states have internal predecessors, (33561), 7841 states have call successors, (7841), 2001 states have call predecessors, (7841), 2072 states have return successors, (8156), 7780 states have call predecessors, (8156), 7840 states have call successors, (8156) [2021-12-18 04:28:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34616 states to 34616 states and 49558 transitions. [2021-12-18 04:28:55,905 INFO L78 Accepts]: Start accepts. Automaton has 34616 states and 49558 transitions. Word has length 498 [2021-12-18 04:28:55,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:28:55,906 INFO L470 AbstractCegarLoop]: Abstraction has 34616 states and 49558 transitions. [2021-12-18 04:28:55,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.625) internal successors, (234), 8 states have internal predecessors, (234), 4 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) [2021-12-18 04:28:55,907 INFO L276 IsEmpty]: Start isEmpty. Operand 34616 states and 49558 transitions. [2021-12-18 04:28:55,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2021-12-18 04:28:55,960 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:28:55,961 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:55,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 04:28:55,961 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:28:55,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:28:55,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1637334258, now seen corresponding path program 1 times [2021-12-18 04:28:55,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:28:55,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407086099] [2021-12-18 04:28:55,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:28:55,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:28:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:28:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:28:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:28:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:28:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:28:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:28:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:28:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:28:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:28:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 04:28:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:28:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:28:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:28:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:28:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 04:28:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 04:28:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 04:28:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:28:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 04:28:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 04:28:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 04:28:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:28:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:28:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 04:28:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 04:28:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 04:28:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:28:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:28:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:28:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:28:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:28:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 04:28:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:28:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:28:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 04:28:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:28:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:28:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:28:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:28:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:28:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 04:28:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:28:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:28:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:28:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 04:28:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:28:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:28:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 04:28:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 04:28:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 04:28:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:28:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:28:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 04:28:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 04:28:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:28:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 04:28:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 04:28:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:28:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 04:28:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 04:28:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:28:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:28:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:28:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:28:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1673 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1663 trivial. 0 not checked. [2021-12-18 04:28:57,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:28:57,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407086099] [2021-12-18 04:28:57,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407086099] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:28:57,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:28:57,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 04:28:57,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621134854] [2021-12-18 04:28:57,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:28:57,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 04:28:57,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:28:57,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 04:28:57,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-18 04:28:57,075 INFO L87 Difference]: Start difference. First operand 34616 states and 49558 transitions. Second operand has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (68), 9 states have call predecessors, (68), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2021-12-18 04:29:02,785 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 04:29:04,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:29:06,833 WARN L534 Checker$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 04:29:12,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:29:14,601 WARN L534 Checker$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 04:29:16,626 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 04:29:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:29:29,480 INFO L93 Difference]: Finished difference Result 80768 states and 119702 transitions. [2021-12-18 04:29:29,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 04:29:29,481 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (68), 9 states have call predecessors, (68), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 522 [2021-12-18 04:29:29,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:29:29,705 INFO L225 Difference]: With dead ends: 80768 [2021-12-18 04:29:29,705 INFO L226 Difference]: Without dead ends: 46216 [2021-12-18 04:29:29,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-18 04:29:29,813 INFO L933 BasicCegarLoop]: 4163 mSDtfsCounter, 3073 mSDsluCounter, 10311 mSDsCounter, 0 mSdLazyCounter, 9613 mSolverCounterSat, 2141 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3253 SdHoareTripleChecker+Valid, 14474 SdHoareTripleChecker+Invalid, 11760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2141 IncrementalHoareTripleChecker+Valid, 9613 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:29:29,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3253 Valid, 14474 Invalid, 11760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2141 Valid, 9613 Invalid, 6 Unknown, 0 Unchecked, 29.8s Time] [2021-12-18 04:29:29,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46216 states. [2021-12-18 04:29:31,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46216 to 34656. [2021-12-18 04:29:31,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34656 states, 24734 states have (on average 1.358170938788712) internal successors, (33593), 25424 states have internal predecessors, (33593), 7845 states have call successors, (7845), 2001 states have call predecessors, (7845), 2076 states have return successors, (8164), 7784 states have call predecessors, (8164), 7844 states have call successors, (8164) [2021-12-18 04:29:31,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34656 states to 34656 states and 49602 transitions. [2021-12-18 04:29:31,649 INFO L78 Accepts]: Start accepts. Automaton has 34656 states and 49602 transitions. Word has length 522 [2021-12-18 04:29:31,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:29:31,650 INFO L470 AbstractCegarLoop]: Abstraction has 34656 states and 49602 transitions. [2021-12-18 04:29:31,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (68), 9 states have call predecessors, (68), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2021-12-18 04:29:31,651 INFO L276 IsEmpty]: Start isEmpty. Operand 34656 states and 49602 transitions. [2021-12-18 04:29:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-12-18 04:29:31,691 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:29:31,692 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:31,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 04:29:31,692 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:29:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:29:31,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1303276674, now seen corresponding path program 1 times [2021-12-18 04:29:31,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:29:31,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124927380] [2021-12-18 04:29:31,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:31,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:29:31,829 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:29:31,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1082984052] [2021-12-18 04:29:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:31,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:31,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:29:31,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:29:31,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 04:29:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:33,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 6052 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:29:33,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:29:34,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1701 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2021-12-18 04:29:34,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:29:34,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:29:34,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124927380] [2021-12-18 04:29:34,246 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:29:34,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082984052] [2021-12-18 04:29:34,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082984052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:29:34,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:29:34,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:29:34,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858801215] [2021-12-18 04:29:34,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:29:34,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:29:34,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:29:34,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:29:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:29:34,248 INFO L87 Difference]: Start difference. First operand 34656 states and 49602 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-12-18 04:29:35,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:29:35,672 INFO L93 Difference]: Finished difference Result 69344 states and 99370 transitions. [2021-12-18 04:29:35,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:29:35,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 537 [2021-12-18 04:29:35,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:29:35,808 INFO L225 Difference]: With dead ends: 69344 [2021-12-18 04:29:35,809 INFO L226 Difference]: Without dead ends: 34752 [2021-12-18 04:29:35,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:29:35,904 INFO L933 BasicCegarLoop]: 4373 mSDtfsCounter, 7 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8741 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:29:35,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 8741 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:29:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34752 states. [2021-12-18 04:29:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34752 to 34668. [2021-12-18 04:29:37,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34668 states, 24746 states have (on average 1.3579972520811445) internal successors, (33605), 25436 states have internal predecessors, (33605), 7845 states have call successors, (7845), 2001 states have call predecessors, (7845), 2076 states have return successors, (8164), 7784 states have call predecessors, (8164), 7844 states have call successors, (8164) [2021-12-18 04:29:37,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34668 states to 34668 states and 49614 transitions. [2021-12-18 04:29:37,586 INFO L78 Accepts]: Start accepts. Automaton has 34668 states and 49614 transitions. Word has length 537 [2021-12-18 04:29:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:29:37,587 INFO L470 AbstractCegarLoop]: Abstraction has 34668 states and 49614 transitions. [2021-12-18 04:29:37,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-12-18 04:29:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 34668 states and 49614 transitions. [2021-12-18 04:29:37,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2021-12-18 04:29:37,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:29:37,630 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:37,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 04:29:37,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-18 04:29:37,840 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:29:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:29:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1343536023, now seen corresponding path program 1 times [2021-12-18 04:29:37,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:29:37,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622002754] [2021-12-18 04:29:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:37,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:29:37,986 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:29:37,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [106325499] [2021-12-18 04:29:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:37,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:37,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:29:37,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:29:38,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 04:29:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:39,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 6142 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:29:39,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:29:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2021-12-18 04:29:40,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:29:40,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:29:40,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622002754] [2021-12-18 04:29:40,389 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:29:40,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106325499] [2021-12-18 04:29:40,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106325499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:29:40,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:29:40,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:29:40,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260929163] [2021-12-18 04:29:40,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:29:40,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:29:40,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:29:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:29:40,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:29:40,392 INFO L87 Difference]: Start difference. First operand 34668 states and 49614 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-12-18 04:29:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:29:41,992 INFO L93 Difference]: Finished difference Result 69336 states and 99310 transitions. [2021-12-18 04:29:41,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:29:41,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 548 [2021-12-18 04:29:41,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:29:42,168 INFO L225 Difference]: With dead ends: 69336 [2021-12-18 04:29:42,168 INFO L226 Difference]: Without dead ends: 34732 [2021-12-18 04:29:42,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:29:42,264 INFO L933 BasicCegarLoop]: 4373 mSDtfsCounter, 1 mSDsluCounter, 4369 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8742 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:29:42,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 8742 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:29:42,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34732 states. [2021-12-18 04:29:43,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34732 to 34700. [2021-12-18 04:29:43,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34700 states, 24778 states have (on average 1.3575349100008072) internal successors, (33637), 25468 states have internal predecessors, (33637), 7845 states have call successors, (7845), 2001 states have call predecessors, (7845), 2076 states have return successors, (8164), 7784 states have call predecessors, (8164), 7844 states have call successors, (8164) [2021-12-18 04:29:44,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34700 states to 34700 states and 49646 transitions. [2021-12-18 04:29:44,021 INFO L78 Accepts]: Start accepts. Automaton has 34700 states and 49646 transitions. Word has length 548 [2021-12-18 04:29:44,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:29:44,021 INFO L470 AbstractCegarLoop]: Abstraction has 34700 states and 49646 transitions. [2021-12-18 04:29:44,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-12-18 04:29:44,022 INFO L276 IsEmpty]: Start isEmpty. Operand 34700 states and 49646 transitions. [2021-12-18 04:29:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2021-12-18 04:29:44,063 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:29:44,063 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:44,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-18 04:29:44,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-18 04:29:44,264 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:29:44,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:29:44,265 INFO L85 PathProgramCache]: Analyzing trace with hash 715011762, now seen corresponding path program 1 times [2021-12-18 04:29:44,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:29:44,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641217730] [2021-12-18 04:29:44,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:44,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:29:44,391 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:29:44,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1289322377] [2021-12-18 04:29:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:44,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:44,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:29:44,393 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:29:44,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 04:29:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:45,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 6198 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:29:45,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:29:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2021-12-18 04:29:46,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:29:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1692 trivial. 0 not checked. [2021-12-18 04:29:47,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:29:47,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641217730] [2021-12-18 04:29:47,741 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:29:47,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289322377] [2021-12-18 04:29:47,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289322377] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:29:47,741 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:29:47,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-18 04:29:47,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898621161] [2021-12-18 04:29:47,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:29:47,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:29:47,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:29:47,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:29:47,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:29:47,744 INFO L87 Difference]: Start difference. First operand 34700 states and 49646 transitions. Second operand has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 4 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (97), 4 states have call predecessors, (97), 4 states have call successors, (97) [2021-12-18 04:29:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:29:49,380 INFO L93 Difference]: Finished difference Result 69560 states and 99614 transitions. [2021-12-18 04:29:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 04:29:49,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 4 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (97), 4 states have call predecessors, (97), 4 states have call successors, (97) Word has length 558 [2021-12-18 04:29:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:29:49,509 INFO L225 Difference]: With dead ends: 69560 [2021-12-18 04:29:49,509 INFO L226 Difference]: Without dead ends: 34924 [2021-12-18 04:29:49,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1110 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:29:49,601 INFO L933 BasicCegarLoop]: 4376 mSDtfsCounter, 4 mSDsluCounter, 13108 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 17484 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:29:49,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 17484 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:29:49,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34924 states. [2021-12-18 04:29:51,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34924 to 34892. [2021-12-18 04:29:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34892 states, 24922 states have (on average 1.3554690634780515) internal successors, (33781), 25612 states have internal predecessors, (33781), 7893 states have call successors, (7893), 2001 states have call predecessors, (7893), 2076 states have return successors, (8212), 7832 states have call predecessors, (8212), 7892 states have call successors, (8212) [2021-12-18 04:29:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34892 states to 34892 states and 49886 transitions. [2021-12-18 04:29:51,472 INFO L78 Accepts]: Start accepts. Automaton has 34892 states and 49886 transitions. Word has length 558 [2021-12-18 04:29:51,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:29:51,473 INFO L470 AbstractCegarLoop]: Abstraction has 34892 states and 49886 transitions. [2021-12-18 04:29:51,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 4 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (97), 4 states have call predecessors, (97), 4 states have call successors, (97) [2021-12-18 04:29:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 34892 states and 49886 transitions. [2021-12-18 04:29:51,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2021-12-18 04:29:51,515 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:29:51,515 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:51,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 04:29:51,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:51,717 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:29:51,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:29:51,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1387912691, now seen corresponding path program 2 times [2021-12-18 04:29:51,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:29:51,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493100851] [2021-12-18 04:29:51,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:51,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:29:51,834 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:29:51,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390596632] [2021-12-18 04:29:51,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 04:29:51,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:51,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:29:51,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:29:51,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 04:29:53,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 04:29:53,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:29:53,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 3290 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:29:53,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:29:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 1727 trivial. 0 not checked. [2021-12-18 04:29:53,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:29:53,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:29:53,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493100851] [2021-12-18 04:29:53,755 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:29:53,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390596632] [2021-12-18 04:29:53,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390596632] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:29:53,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:29:53,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:29:53,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626996792] [2021-12-18 04:29:53,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:29:53,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:29:53,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:29:53,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:29:53,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:29:53,758 INFO L87 Difference]: Start difference. First operand 34892 states and 49886 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-12-18 04:29:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:29:55,488 INFO L93 Difference]: Finished difference Result 70008 states and 100270 transitions. [2021-12-18 04:29:55,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:29:55,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 588 [2021-12-18 04:29:55,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:29:55,620 INFO L225 Difference]: With dead ends: 70008 [2021-12-18 04:29:55,620 INFO L226 Difference]: Without dead ends: 35180 [2021-12-18 04:29:55,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:29:55,721 INFO L933 BasicCegarLoop]: 4375 mSDtfsCounter, 21 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8743 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:29:55,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 8743 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:29:55,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35180 states. [2021-12-18 04:29:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35180 to 34916. [2021-12-18 04:29:57,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34916 states, 24946 states have (on average 1.3551270744808788) internal successors, (33805), 25636 states have internal predecessors, (33805), 7893 states have call successors, (7893), 2001 states have call predecessors, (7893), 2076 states have return successors, (8212), 7832 states have call predecessors, (8212), 7892 states have call successors, (8212) [2021-12-18 04:29:57,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34916 states to 34916 states and 49910 transitions. [2021-12-18 04:29:57,500 INFO L78 Accepts]: Start accepts. Automaton has 34916 states and 49910 transitions. Word has length 588 [2021-12-18 04:29:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:29:57,501 INFO L470 AbstractCegarLoop]: Abstraction has 34916 states and 49910 transitions. [2021-12-18 04:29:57,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-12-18 04:29:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 34916 states and 49910 transitions. [2021-12-18 04:29:57,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2021-12-18 04:29:57,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:29:57,547 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 9, 9, 8, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:57,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 04:29:57,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-18 04:29:57,749 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:29:57,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:29:57,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1670366409, now seen corresponding path program 1 times [2021-12-18 04:29:57,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:29:57,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550404815] [2021-12-18 04:29:57,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:57,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:29:58,040 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:29:58,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451160760] [2021-12-18 04:29:58,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:58,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:29:58,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:29:58,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:29:58,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 04:29:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:59,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 6564 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:29:59,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:30:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1674 trivial. 0 not checked. [2021-12-18 04:30:00,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:30:00,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:00,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550404815] [2021-12-18 04:30:00,343 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:30:00,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451160760] [2021-12-18 04:30:00,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451160760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:00,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:00,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:30:00,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897510949] [2021-12-18 04:30:00,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:00,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:30:00,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:00,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:30:00,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:30:00,346 INFO L87 Difference]: Start difference. First operand 34916 states and 49910 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2021-12-18 04:30:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:02,006 INFO L93 Difference]: Finished difference Result 69944 states and 100062 transitions. [2021-12-18 04:30:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:30:02,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 616 [2021-12-18 04:30:02,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:02,260 INFO L225 Difference]: With dead ends: 69944 [2021-12-18 04:30:02,260 INFO L226 Difference]: Without dead ends: 35092 [2021-12-18 04:30:02,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:30:02,341 INFO L933 BasicCegarLoop]: 4376 mSDtfsCounter, 6 mSDsluCounter, 4367 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8743 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:02,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 8743 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:30:02,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35092 states. [2021-12-18 04:30:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35092 to 34964. [2021-12-18 04:30:03,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34964 states, 24994 states have (on average 1.354445066816036) internal successors, (33853), 25684 states have internal predecessors, (33853), 7893 states have call successors, (7893), 2001 states have call predecessors, (7893), 2076 states have return successors, (8212), 7832 states have call predecessors, (8212), 7892 states have call successors, (8212) [2021-12-18 04:30:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34964 states to 34964 states and 49958 transitions. [2021-12-18 04:30:03,919 INFO L78 Accepts]: Start accepts. Automaton has 34964 states and 49958 transitions. Word has length 616 [2021-12-18 04:30:03,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:03,920 INFO L470 AbstractCegarLoop]: Abstraction has 34964 states and 49958 transitions. [2021-12-18 04:30:03,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2021-12-18 04:30:03,920 INFO L276 IsEmpty]: Start isEmpty. Operand 34964 states and 49958 transitions. [2021-12-18 04:30:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2021-12-18 04:30:03,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:03,967 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 9, 9, 8, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:30:03,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-18 04:30:04,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-18 04:30:04,168 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1081982324, now seen corresponding path program 1 times [2021-12-18 04:30:04,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:04,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983300815] [2021-12-18 04:30:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:04,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:04,296 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:30:04,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799474907] [2021-12-18 04:30:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:04,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:30:04,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:30:04,298 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:30:04,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 04:30:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:05,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 6605 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:30:05,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:30:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1850 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 1674 trivial. 0 not checked. [2021-12-18 04:30:06,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:30:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1850 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1838 trivial. 0 not checked. [2021-12-18 04:30:07,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:07,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983300815] [2021-12-18 04:30:07,895 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:30:07,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799474907] [2021-12-18 04:30:07,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799474907] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:30:07,896 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:30:07,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-18 04:30:07,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652372765] [2021-12-18 04:30:07,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:30:07,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:30:07,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:07,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:30:07,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:30:07,898 INFO L87 Difference]: Start difference. First operand 34964 states and 49958 transitions. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 4 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) [2021-12-18 04:30:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:09,656 INFO L93 Difference]: Finished difference Result 70472 states and 100838 transitions. [2021-12-18 04:30:09,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 04:30:09,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 4 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) Word has length 623 [2021-12-18 04:30:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:09,782 INFO L225 Difference]: With dead ends: 70472 [2021-12-18 04:30:09,782 INFO L226 Difference]: Without dead ends: 35572 [2021-12-18 04:30:09,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1244 GetRequests, 1240 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:30:09,862 INFO L933 BasicCegarLoop]: 4381 mSDtfsCounter, 34 mSDsluCounter, 8742 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 13123 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:09,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 13123 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 04:30:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35572 states.