./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 08:01:49,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 08:01:49,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 08:01:49,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 08:01:49,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 08:01:49,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 08:01:49,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 08:01:49,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 08:01:49,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 08:01:49,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 08:01:49,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 08:01:49,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 08:01:49,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 08:01:49,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 08:01:49,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 08:01:49,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 08:01:49,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 08:01:49,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 08:01:49,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 08:01:49,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 08:01:49,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 08:01:49,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 08:01:49,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 08:01:49,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 08:01:49,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 08:01:49,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 08:01:49,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 08:01:49,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 08:01:49,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 08:01:49,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 08:01:49,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 08:01:49,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 08:01:49,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 08:01:49,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 08:01:49,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 08:01:49,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 08:01:49,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 08:01:49,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 08:01:49,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 08:01:49,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 08:01:49,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 08:01:49,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 08:01:49,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 08:01:49,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 08:01:49,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 08:01:49,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 08:01:49,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 08:01:49,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 08:01:49,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 08:01:49,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 08:01:49,159 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 08:01:49,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 08:01:49,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 08:01:49,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 08:01:49,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 08:01:49,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 08:01:49,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 08:01:49,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 08:01:49,160 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 08:01:49,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 08:01:49,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 08:01:49,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 08:01:49,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 08:01:49,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:01:49,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 08:01:49,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 08:01:49,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 08:01:49,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 08:01:49,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 08:01:49,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 08:01:49,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 08:01:49,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 08:01:49,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 08:01:49,163 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2021-12-18 08:01:49,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 08:01:49,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 08:01:49,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 08:01:49,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 08:01:49,366 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 08:01:49,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-12-18 08:01:49,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/857e3ace2/4f04f7e3dcc9407a91a440c6c19c58d2/FLAG457de9d8e [2021-12-18 08:01:50,087 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 08:01:50,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-12-18 08:01:50,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/857e3ace2/4f04f7e3dcc9407a91a440c6c19c58d2/FLAG457de9d8e [2021-12-18 08:01:50,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/857e3ace2/4f04f7e3dcc9407a91a440c6c19c58d2 [2021-12-18 08:01:50,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 08:01:50,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 08:01:50,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 08:01:50,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 08:01:50,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 08:01:50,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:01:50" (1/1) ... [2021-12-18 08:01:50,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fae57aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:50, skipping insertion in model container [2021-12-18 08:01:50,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:01:50" (1/1) ... [2021-12-18 08:01:50,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 08:01:50,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 08:01:53,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2021-12-18 08:01:53,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:01:53,109 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 08:01:53,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2021-12-18 08:01:53,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:01:53,668 INFO L208 MainTranslator]: Completed translation [2021-12-18 08:01:53,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53 WrapperNode [2021-12-18 08:01:53,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 08:01:53,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 08:01:53,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 08:01:53,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 08:01:53,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:53,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:53,943 INFO L137 Inliner]: procedures = 490, calls = 4671, calls flagged for inlining = 140, calls inlined = 118, statements flattened = 7284 [2021-12-18 08:01:53,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 08:01:53,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 08:01:53,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 08:01:53,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 08:01:53,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:53,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:53,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:53,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:54,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:54,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:54,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:54,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 08:01:54,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 08:01:54,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 08:01:54,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 08:01:54,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (1/1) ... [2021-12-18 08:01:54,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:01:54,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:01:54,253 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 08:01:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-18 08:01:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-18 08:01:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2021-12-18 08:01:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2021-12-18 08:01:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 08:01:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 08:01:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-18 08:01:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-18 08:01:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2021-12-18 08:01:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2021-12-18 08:01:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-18 08:01:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-18 08:01:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 08:01:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 08:01:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2021-12-18 08:01:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2021-12-18 08:01:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2021-12-18 08:01:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2021-12-18 08:01:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-18 08:01:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-18 08:01:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 08:01:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 08:01:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 08:01:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 08:01:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2021-12-18 08:01:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2021-12-18 08:01:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2021-12-18 08:01:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2021-12-18 08:01:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-18 08:01:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-18 08:01:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 08:01:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2021-12-18 08:01:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2021-12-18 08:01:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 08:01:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 08:01:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 08:01:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 08:01:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2021-12-18 08:01:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2021-12-18 08:01:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2021-12-18 08:01:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2021-12-18 08:01:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 08:01:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2021-12-18 08:01:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2021-12-18 08:01:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-18 08:01:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-18 08:01:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2021-12-18 08:01:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2021-12-18 08:01:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2021-12-18 08:01:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2021-12-18 08:01:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2021-12-18 08:01:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 08:01:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 08:01:54,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 08:01:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 08:01:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2021-12-18 08:01:54,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2021-12-18 08:01:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2021-12-18 08:01:54,286 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2021-12-18 08:01:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure h5_peer_reset [2021-12-18 08:01:54,287 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_peer_reset [2021-12-18 08:01:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 08:01:54,268 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 08:01:54,288 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2021-12-18 08:01:54,288 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2021-12-18 08:01:54,288 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2021-12-18 08:01:54,288 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2021-12-18 08:01:54,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 08:01:54,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 08:01:54,288 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2021-12-18 08:01:54,288 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2021-12-18 08:01:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 08:01:54,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 08:01:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2021-12-18 08:01:54,289 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2021-12-18 08:01:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2021-12-18 08:01:54,289 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2021-12-18 08:01:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2021-12-18 08:01:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-12-18 08:01:54,290 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-12-18 08:01:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2021-12-18 08:01:54,290 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2021-12-18 08:01:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2021-12-18 08:01:54,290 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2021-12-18 08:01:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2021-12-18 08:01:54,290 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2021-12-18 08:01:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 08:01:54,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 08:01:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2021-12-18 08:01:54,291 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2021-12-18 08:01:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 08:01:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2021-12-18 08:01:54,291 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2021-12-18 08:01:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-12-18 08:01:54,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-12-18 08:01:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 08:01:54,292 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2021-12-18 08:01:54,292 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2021-12-18 08:01:54,292 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 08:01:54,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 08:01:54,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 08:01:54,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 08:01:54,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 08:01:54,292 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2021-12-18 08:01:54,292 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2021-12-18 08:01:54,293 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2021-12-18 08:01:54,293 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2021-12-18 08:01:54,293 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2021-12-18 08:01:54,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2021-12-18 08:01:54,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 08:01:54,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 08:01:54,293 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2021-12-18 08:01:54,293 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2021-12-18 08:01:54,293 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2021-12-18 08:01:54,294 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2021-12-18 08:01:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 08:01:54,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 08:01:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2021-12-18 08:01:54,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2021-12-18 08:01:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2021-12-18 08:01:54,294 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2021-12-18 08:01:54,294 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2021-12-18 08:01:54,295 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2021-12-18 08:01:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2021-12-18 08:01:54,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2021-12-18 08:01:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2021-12-18 08:01:54,295 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2021-12-18 08:01:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-18 08:01:54,295 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-18 08:01:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-18 08:01:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-18 08:01:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2021-12-18 08:01:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2021-12-18 08:01:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 08:01:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 08:01:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2021-12-18 08:01:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2021-12-18 08:01:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 08:01:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 08:01:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure h5_cfg_field [2021-12-18 08:01:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_cfg_field [2021-12-18 08:01:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 08:01:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 08:01:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 08:01:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 08:01:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2021-12-18 08:01:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2021-12-18 08:01:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-18 08:01:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-18 08:01:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2021-12-18 08:01:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2021-12-18 08:01:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-18 08:01:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-18 08:01:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 08:01:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 08:01:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 08:01:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 08:01:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2021-12-18 08:01:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2021-12-18 08:01:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-18 08:01:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-18 08:01:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-12-18 08:01:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-12-18 08:01:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2021-12-18 08:01:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2021-12-18 08:01:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2021-12-18 08:01:54,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2021-12-18 08:01:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2021-12-18 08:01:54,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2021-12-18 08:01:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2021-12-18 08:01:54,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2021-12-18 08:01:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2021-12-18 08:01:54,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2021-12-18 08:01:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 08:01:54,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 08:01:54,301 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2021-12-18 08:01:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2021-12-18 08:01:54,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 08:01:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 08:01:54,301 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2021-12-18 08:01:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2021-12-18 08:01:54,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2021-12-18 08:01:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2021-12-18 08:01:54,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 08:01:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 08:01:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2021-12-18 08:01:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2021-12-18 08:01:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-18 08:01:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-18 08:01:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-18 08:01:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-18 08:01:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2021-12-18 08:01:54,303 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2021-12-18 08:01:54,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 08:01:54,303 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2021-12-18 08:01:54,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2021-12-18 08:01:54,303 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2021-12-18 08:01:54,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2021-12-18 08:01:54,303 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2021-12-18 08:01:54,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2021-12-18 08:01:54,303 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 08:01:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 08:01:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 08:01:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-18 08:01:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-18 08:01:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-12-18 08:01:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-12-18 08:01:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-18 08:01:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-18 08:01:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2021-12-18 08:01:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2021-12-18 08:01:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 08:01:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2021-12-18 08:01:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2021-12-18 08:01:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2021-12-18 08:01:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2021-12-18 08:01:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2021-12-18 08:01:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2021-12-18 08:01:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-18 08:01:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-18 08:01:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2021-12-18 08:01:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2021-12-18 08:01:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2021-12-18 08:01:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2021-12-18 08:01:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 08:01:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 08:01:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-18 08:01:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-18 08:01:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-18 08:01:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-18 08:01:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2021-12-18 08:01:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2021-12-18 08:01:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2021-12-18 08:01:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2021-12-18 08:01:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2021-12-18 08:01:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2021-12-18 08:01:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2021-12-18 08:01:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2021-12-18 08:01:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 08:01:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 08:01:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2021-12-18 08:01:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2021-12-18 08:01:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2021-12-18 08:01:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2021-12-18 08:01:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2021-12-18 08:01:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2021-12-18 08:01:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2021-12-18 08:01:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2021-12-18 08:01:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2021-12-18 08:01:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2021-12-18 08:01:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-18 08:01:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-18 08:01:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2021-12-18 08:01:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2021-12-18 08:01:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2021-12-18 08:01:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2021-12-18 08:01:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-18 08:01:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-18 08:01:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2021-12-18 08:01:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2021-12-18 08:01:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 08:01:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 08:01:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2021-12-18 08:01:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2021-12-18 08:01:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 08:01:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 08:01:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 08:01:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-12-18 08:01:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-12-18 08:01:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-18 08:01:54,314 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-18 08:01:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 08:01:54,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 08:01:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2021-12-18 08:01:54,314 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2021-12-18 08:01:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2021-12-18 08:01:54,314 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2021-12-18 08:01:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2021-12-18 08:01:54,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2021-12-18 08:01:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2021-12-18 08:01:54,315 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2021-12-18 08:01:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 08:01:54,315 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 08:01:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 08:01:54,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 08:01:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2021-12-18 08:01:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2021-12-18 08:01:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2021-12-18 08:01:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2021-12-18 08:01:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2021-12-18 08:01:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2021-12-18 08:01:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure h5_complete_rx_pkt [2021-12-18 08:01:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_complete_rx_pkt [2021-12-18 08:01:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2021-12-18 08:01:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2021-12-18 08:01:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2021-12-18 08:01:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2021-12-18 08:01:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 08:01:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 08:01:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-18 08:01:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-18 08:01:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-18 08:01:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-18 08:01:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2021-12-18 08:01:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2021-12-18 08:01:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2021-12-18 08:01:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2021-12-18 08:01:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-18 08:01:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-18 08:01:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 08:01:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 08:01:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 08:01:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-12-18 08:01:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-12-18 08:01:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2021-12-18 08:01:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2021-12-18 08:01:55,085 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 08:01:55,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 08:01:55,680 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 08:02:02,839 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 08:02:02,863 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 08:02:02,863 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 08:02:02,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:02:02 BoogieIcfgContainer [2021-12-18 08:02:02,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 08:02:02,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 08:02:02,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 08:02:02,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 08:02:02,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:01:50" (1/3) ... [2021-12-18 08:02:02,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17973aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:02:02, skipping insertion in model container [2021-12-18 08:02:02,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:01:53" (2/3) ... [2021-12-18 08:02:02,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17973aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:02:02, skipping insertion in model container [2021-12-18 08:02:02,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:02:02" (3/3) ... [2021-12-18 08:02:02,875 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-12-18 08:02:02,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 08:02:02,879 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 08:02:02,925 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 08:02:02,929 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 08:02:02,929 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 08:02:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 2694 states, 1836 states have (on average 1.3600217864923747) internal successors, (2497), 1890 states have internal predecessors, (2497), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) [2021-12-18 08:02:02,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-18 08:02:02,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:02:02,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:02:02,993 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:02:02,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:02:02,996 INFO L85 PathProgramCache]: Analyzing trace with hash 919352225, now seen corresponding path program 1 times [2021-12-18 08:02:03,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:02:03,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446584048] [2021-12-18 08:02:03,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:02:03,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:02:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:03,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 08:02:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:02:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:03,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 08:02:03,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:02:03,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446584048] [2021-12-18 08:02:03,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446584048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:02:03,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:02:03,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 08:02:03,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865889206] [2021-12-18 08:02:03,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:02:03,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 08:02:03,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:02:03,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 08:02:03,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 08:02:03,656 INFO L87 Difference]: Start difference. First operand has 2694 states, 1836 states have (on average 1.3600217864923747) internal successors, (2497), 1890 states have internal predecessors, (2497), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-18 08:02:06,730 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 08:02:10,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:02:10,819 INFO L93 Difference]: Finished difference Result 6003 states and 9011 transitions. [2021-12-18 08:02:10,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 08:02:10,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2021-12-18 08:02:10,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:02:10,855 INFO L225 Difference]: With dead ends: 6003 [2021-12-18 08:02:10,856 INFO L226 Difference]: Without dead ends: 3273 [2021-12-18 08:02:10,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:02:10,876 INFO L933 BasicCegarLoop]: 3964 mSDtfsCounter, 4107 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 1309 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 6625 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-18 08:02:10,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4479 Valid, 6625 Invalid, 2422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1309 Valid, 1112 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-12-18 08:02:10,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2021-12-18 08:02:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2909. [2021-12-18 08:02:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 1991 states have (on average 1.3470617780010046) internal successors, (2682), 2033 states have internal predecessors, (2682), 740 states have call successors, (740), 178 states have call predecessors, (740), 177 states have return successors, (739), 726 states have call predecessors, (739), 739 states have call successors, (739) [2021-12-18 08:02:11,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4161 transitions. [2021-12-18 08:02:11,050 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4161 transitions. Word has length 57 [2021-12-18 08:02:11,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:02:11,055 INFO L470 AbstractCegarLoop]: Abstraction has 2909 states and 4161 transitions. [2021-12-18 08:02:11,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-18 08:02:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4161 transitions. [2021-12-18 08:02:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-18 08:02:11,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:02:11,069 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:02:11,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 08:02:11,069 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:02:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:02:11,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1907866497, now seen corresponding path program 1 times [2021-12-18 08:02:11,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:02:11,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720436659] [2021-12-18 08:02:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:02:11,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:02:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:11,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:02:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 08:02:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 08:02:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:11,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:02:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 08:02:11,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:02:11,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720436659] [2021-12-18 08:02:11,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720436659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:02:11,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:02:11,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:02:11,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914971772] [2021-12-18 08:02:11,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:02:11,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:02:11,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:02:11,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:02:11,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:02:11,490 INFO L87 Difference]: Start difference. First operand 2909 states and 4161 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-18 08:02:16,362 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 08:02:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:02:29,143 INFO L93 Difference]: Finished difference Result 6744 states and 9984 transitions. [2021-12-18 08:02:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:02:29,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 74 [2021-12-18 08:02:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:02:29,165 INFO L225 Difference]: With dead ends: 6744 [2021-12-18 08:02:29,165 INFO L226 Difference]: Without dead ends: 3841 [2021-12-18 08:02:29,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-12-18 08:02:29,177 INFO L933 BasicCegarLoop]: 3562 mSDtfsCounter, 2523 mSDsluCounter, 17084 mSDsCounter, 0 mSdLazyCounter, 9468 mSolverCounterSat, 2202 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 20646 SdHoareTripleChecker+Invalid, 11671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2202 IncrementalHoareTripleChecker+Valid, 9468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2021-12-18 08:02:29,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2912 Valid, 20646 Invalid, 11671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2202 Valid, 9468 Invalid, 1 Unknown, 0 Unchecked, 17.2s Time] [2021-12-18 08:02:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2021-12-18 08:02:29,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 2916. [2021-12-18 08:02:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 1996 states have (on average 1.3461923847695392) internal successors, (2687), 2038 states have internal predecessors, (2687), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 728 states have call predecessors, (744), 739 states have call successors, (744) [2021-12-18 08:02:29,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4171 transitions. [2021-12-18 08:02:29,270 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4171 transitions. Word has length 74 [2021-12-18 08:02:29,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:02:29,271 INFO L470 AbstractCegarLoop]: Abstraction has 2916 states and 4171 transitions. [2021-12-18 08:02:29,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-18 08:02:29,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4171 transitions. [2021-12-18 08:02:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-18 08:02:29,279 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:02:29,279 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:02:29,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 08:02:29,280 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:02:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:02:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1626018516, now seen corresponding path program 1 times [2021-12-18 08:02:29,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:02:29,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227299186] [2021-12-18 08:02:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:02:29,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:02:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:29,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:02:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:29,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 08:02:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 08:02:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:29,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 08:02:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:29,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:29,611 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 08:02:29,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:02:29,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227299186] [2021-12-18 08:02:29,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227299186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:02:29,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:02:29,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:02:29,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085938589] [2021-12-18 08:02:29,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:02:29,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:02:29,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:02:29,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:02:29,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:02:29,614 INFO L87 Difference]: Start difference. First operand 2916 states and 4171 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-18 08:02:34,316 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 08:02:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:02:47,506 INFO L93 Difference]: Finished difference Result 6748 states and 9983 transitions. [2021-12-18 08:02:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 08:02:47,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 81 [2021-12-18 08:02:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:02:47,529 INFO L225 Difference]: With dead ends: 6748 [2021-12-18 08:02:47,529 INFO L226 Difference]: Without dead ends: 3838 [2021-12-18 08:02:47,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-18 08:02:47,547 INFO L933 BasicCegarLoop]: 3586 mSDtfsCounter, 2494 mSDsluCounter, 17170 mSDsCounter, 0 mSdLazyCounter, 9416 mSolverCounterSat, 2193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 20756 SdHoareTripleChecker+Invalid, 11610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2193 IncrementalHoareTripleChecker+Valid, 9416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-12-18 08:02:47,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2886 Valid, 20756 Invalid, 11610 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2193 Valid, 9416 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2021-12-18 08:02:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3838 states. [2021-12-18 08:02:47,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3838 to 2918. [2021-12-18 08:02:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 1998 states have (on average 1.3458458458458458) internal successors, (2689), 2039 states have internal predecessors, (2689), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 729 states have call predecessors, (744), 739 states have call successors, (744) [2021-12-18 08:02:47,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4173 transitions. [2021-12-18 08:02:47,702 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4173 transitions. Word has length 81 [2021-12-18 08:02:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:02:47,703 INFO L470 AbstractCegarLoop]: Abstraction has 2918 states and 4173 transitions. [2021-12-18 08:02:47,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-18 08:02:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4173 transitions. [2021-12-18 08:02:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-18 08:02:47,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:02:47,712 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 08:02:47,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 08:02:47,712 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:02:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:02:47,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1630873535, now seen corresponding path program 1 times [2021-12-18 08:02:47,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:02:47,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863233946] [2021-12-18 08:02:47,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:02:47,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:02:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:02:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:02:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 08:02:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:02:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:02:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 08:02:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 08:02:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 08:02:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:02:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 08:02:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:02:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 08:02:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:02:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-18 08:02:47,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:02:47,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863233946] [2021-12-18 08:02:47,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863233946] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:02:47,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:02:47,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:02:47,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183891801] [2021-12-18 08:02:47,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:02:48,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:02:48,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:02:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:02:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:02:48,001 INFO L87 Difference]: Start difference. First operand 2918 states and 4173 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 08:02:52,560 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 08:03:20,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:03:20,195 INFO L93 Difference]: Finished difference Result 11309 states and 17252 transitions. [2021-12-18 08:03:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:03:20,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2021-12-18 08:03:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:03:20,247 INFO L225 Difference]: With dead ends: 11309 [2021-12-18 08:03:20,248 INFO L226 Difference]: Without dead ends: 8397 [2021-12-18 08:03:20,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-18 08:03:20,263 INFO L933 BasicCegarLoop]: 3947 mSDtfsCounter, 10455 mSDsluCounter, 10764 mSDsCounter, 0 mSdLazyCounter, 14836 mSolverCounterSat, 9168 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11254 SdHoareTripleChecker+Valid, 14711 SdHoareTripleChecker+Invalid, 24005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9168 IncrementalHoareTripleChecker+Valid, 14836 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2021-12-18 08:03:20,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11254 Valid, 14711 Invalid, 24005 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9168 Valid, 14836 Invalid, 1 Unknown, 0 Unchecked, 31.4s Time] [2021-12-18 08:03:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8397 states. [2021-12-18 08:03:20,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8397 to 5749. [2021-12-18 08:03:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5749 states, 3933 states have (on average 1.3463005339435545) internal successors, (5295), 4016 states have internal predecessors, (5295), 1459 states have call successors, (1459), 353 states have call predecessors, (1459), 356 states have return successors, (1468), 1437 states have call predecessors, (1468), 1458 states have call successors, (1468) [2021-12-18 08:03:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5749 states to 5749 states and 8222 transitions. [2021-12-18 08:03:20,654 INFO L78 Accepts]: Start accepts. Automaton has 5749 states and 8222 transitions. Word has length 131 [2021-12-18 08:03:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:03:20,655 INFO L470 AbstractCegarLoop]: Abstraction has 5749 states and 8222 transitions. [2021-12-18 08:03:20,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 08:03:20,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5749 states and 8222 transitions. [2021-12-18 08:03:20,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-18 08:03:20,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:03:20,671 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:03:20,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 08:03:20,672 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:03:20,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:03:20,672 INFO L85 PathProgramCache]: Analyzing trace with hash 775698715, now seen corresponding path program 1 times [2021-12-18 08:03:20,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:03:20,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831560708] [2021-12-18 08:03:20,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:03:20,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:03:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:03:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 08:03:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 08:03:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 08:03:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:03:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 08:03:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 08:03:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-18 08:03:20,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:03:20,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831560708] [2021-12-18 08:03:20,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831560708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:03:20,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:03:20,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 08:03:20,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108445370] [2021-12-18 08:03:20,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:03:20,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:03:20,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:03:20,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:03:20,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:03:20,978 INFO L87 Difference]: Start difference. First operand 5749 states and 8222 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 08:03:24,058 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 08:03:30,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:03:30,911 INFO L93 Difference]: Finished difference Result 13315 states and 19582 transitions. [2021-12-18 08:03:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 08:03:30,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2021-12-18 08:03:30,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:03:30,965 INFO L225 Difference]: With dead ends: 13315 [2021-12-18 08:03:30,966 INFO L226 Difference]: Without dead ends: 7572 [2021-12-18 08:03:30,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:03:30,989 INFO L933 BasicCegarLoop]: 3531 mSDtfsCounter, 6042 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 3813 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6405 SdHoareTripleChecker+Valid, 6536 SdHoareTripleChecker+Invalid, 6320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3813 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-12-18 08:03:30,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6405 Valid, 6536 Invalid, 6320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3813 Valid, 2506 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-12-18 08:03:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7572 states. [2021-12-18 08:03:31,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7572 to 5748. [2021-12-18 08:03:31,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 3933 states have (on average 1.3457920162725654) internal successors, (5293), 4016 states have internal predecessors, (5293), 1457 states have call successors, (1457), 354 states have call predecessors, (1457), 357 states have return successors, (1466), 1435 states have call predecessors, (1466), 1456 states have call successors, (1466) [2021-12-18 08:03:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 8216 transitions. [2021-12-18 08:03:31,229 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 8216 transitions. Word has length 92 [2021-12-18 08:03:31,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:03:31,230 INFO L470 AbstractCegarLoop]: Abstraction has 5748 states and 8216 transitions. [2021-12-18 08:03:31,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 08:03:31,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 8216 transitions. [2021-12-18 08:03:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-18 08:03:31,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:03:31,238 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:03:31,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 08:03:31,238 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:03:31,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:03:31,239 INFO L85 PathProgramCache]: Analyzing trace with hash 767501723, now seen corresponding path program 1 times [2021-12-18 08:03:31,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:03:31,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848666988] [2021-12-18 08:03:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:03:31,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:03:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:03:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 08:03:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 08:03:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:03:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:03:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 08:03:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 08:03:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-18 08:03:31,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:03:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848666988] [2021-12-18 08:03:31,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848666988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:03:31,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:03:31,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 08:03:31,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224866930] [2021-12-18 08:03:31,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:03:31,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:03:31,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:03:31,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:03:31,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:03:31,481 INFO L87 Difference]: Start difference. First operand 5748 states and 8216 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 08:03:34,412 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 08:03:41,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:03:41,151 INFO L93 Difference]: Finished difference Result 13310 states and 19562 transitions. [2021-12-18 08:03:41,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 08:03:41,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2021-12-18 08:03:41,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:03:41,187 INFO L225 Difference]: With dead ends: 13310 [2021-12-18 08:03:41,188 INFO L226 Difference]: Without dead ends: 7568 [2021-12-18 08:03:41,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:03:41,215 INFO L933 BasicCegarLoop]: 3521 mSDtfsCounter, 6034 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 2498 mSolverCounterSat, 3812 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6395 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 6311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3812 IncrementalHoareTripleChecker+Valid, 2498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-12-18 08:03:41,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6395 Valid, 6523 Invalid, 6311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3812 Valid, 2498 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2021-12-18 08:03:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2021-12-18 08:03:41,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 5744. [2021-12-18 08:03:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 3931 states have (on average 1.3454591706944798) internal successors, (5289), 4014 states have internal predecessors, (5289), 1455 states have call successors, (1455), 354 states have call predecessors, (1455), 357 states have return successors, (1464), 1433 states have call predecessors, (1464), 1454 states have call successors, (1464) [2021-12-18 08:03:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 8208 transitions. [2021-12-18 08:03:41,505 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 8208 transitions. Word has length 93 [2021-12-18 08:03:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:03:41,505 INFO L470 AbstractCegarLoop]: Abstraction has 5744 states and 8208 transitions. [2021-12-18 08:03:41,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 08:03:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 8208 transitions. [2021-12-18 08:03:41,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-18 08:03:41,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:03:41,515 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:03:41,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 08:03:41,515 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:03:41,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:03:41,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1415081116, now seen corresponding path program 1 times [2021-12-18 08:03:41,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:03:41,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087884062] [2021-12-18 08:03:41,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:03:41,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:03:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:03:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 08:03:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 08:03:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 08:03:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:03:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 08:03:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 08:03:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:41,754 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-18 08:03:41,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:03:41,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087884062] [2021-12-18 08:03:41,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087884062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:03:41,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:03:41,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 08:03:41,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158507192] [2021-12-18 08:03:41,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:03:41,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:03:41,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:03:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:03:41,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:03:41,756 INFO L87 Difference]: Start difference. First operand 5744 states and 8208 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 08:03:44,736 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 08:03:51,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:03:51,742 INFO L93 Difference]: Finished difference Result 13302 states and 19540 transitions. [2021-12-18 08:03:51,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 08:03:51,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2021-12-18 08:03:51,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:03:51,773 INFO L225 Difference]: With dead ends: 13302 [2021-12-18 08:03:51,774 INFO L226 Difference]: Without dead ends: 7564 [2021-12-18 08:03:51,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:03:51,794 INFO L933 BasicCegarLoop]: 3543 mSDtfsCounter, 5991 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 2488 mSolverCounterSat, 3795 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6350 SdHoareTripleChecker+Valid, 6544 SdHoareTripleChecker+Invalid, 6284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3795 IncrementalHoareTripleChecker+Valid, 2488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-12-18 08:03:51,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6350 Valid, 6544 Invalid, 6284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3795 Valid, 2488 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-12-18 08:03:51,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7564 states. [2021-12-18 08:03:51,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7564 to 5740. [2021-12-18 08:03:51,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5740 states, 3929 states have (on average 1.3451259862560447) internal successors, (5285), 4012 states have internal predecessors, (5285), 1453 states have call successors, (1453), 354 states have call predecessors, (1453), 357 states have return successors, (1462), 1431 states have call predecessors, (1462), 1452 states have call successors, (1462) [2021-12-18 08:03:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5740 states to 5740 states and 8200 transitions. [2021-12-18 08:03:52,009 INFO L78 Accepts]: Start accepts. Automaton has 5740 states and 8200 transitions. Word has length 94 [2021-12-18 08:03:52,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:03:52,009 INFO L470 AbstractCegarLoop]: Abstraction has 5740 states and 8200 transitions. [2021-12-18 08:03:52,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 08:03:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5740 states and 8200 transitions. [2021-12-18 08:03:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-18 08:03:52,018 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:03:52,018 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:03:52,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 08:03:52,018 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:03:52,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:03:52,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2010818820, now seen corresponding path program 1 times [2021-12-18 08:03:52,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:03:52,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207705388] [2021-12-18 08:03:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:03:52,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:03:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 08:03:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:03:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 08:03:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 08:03:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:03:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 08:03:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:03:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 08:03:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:03:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-18 08:03:52,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:03:52,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207705388] [2021-12-18 08:03:52,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207705388] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:03:52,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:03:52,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 08:03:52,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365657588] [2021-12-18 08:03:52,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:03:52,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:03:52,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:03:52,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:03:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:03:52,230 INFO L87 Difference]: Start difference. First operand 5740 states and 8200 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 08:03:54,789 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 08:04:01,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:04:01,797 INFO L93 Difference]: Finished difference Result 13294 states and 19518 transitions. [2021-12-18 08:04:01,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 08:04:01,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2021-12-18 08:04:01,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:04:01,835 INFO L225 Difference]: With dead ends: 13294 [2021-12-18 08:04:01,836 INFO L226 Difference]: Without dead ends: 7560 [2021-12-18 08:04:01,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:04:01,857 INFO L933 BasicCegarLoop]: 3526 mSDtfsCounter, 6003 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 3768 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6380 SdHoareTripleChecker+Valid, 6506 SdHoareTripleChecker+Invalid, 6280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3768 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:04:01,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6380 Valid, 6506 Invalid, 6280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3768 Valid, 2511 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2021-12-18 08:04:01,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7560 states. [2021-12-18 08:04:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7560 to 5736. [2021-12-18 08:04:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 3927 states have (on average 1.3447924624395213) internal successors, (5281), 4010 states have internal predecessors, (5281), 1451 states have call successors, (1451), 354 states have call predecessors, (1451), 357 states have return successors, (1460), 1429 states have call predecessors, (1460), 1450 states have call successors, (1460) [2021-12-18 08:04:02,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 8192 transitions. [2021-12-18 08:04:02,144 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 8192 transitions. Word has length 95 [2021-12-18 08:04:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:04:02,145 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 8192 transitions. [2021-12-18 08:04:02,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 08:04:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 8192 transitions. [2021-12-18 08:04:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-18 08:04:02,153 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:04:02,154 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-12-18 08:04:02,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 08:04:02,154 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:04:02,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:04:02,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1492850177, now seen corresponding path program 1 times [2021-12-18 08:04:02,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:04:02,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625642960] [2021-12-18 08:04:02,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:04:02,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:04:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:04:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:04:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 08:04:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:04:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 08:04:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:04:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 08:04:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:04:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 08:04:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 08:04:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-18 08:04:02,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:04:02,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625642960] [2021-12-18 08:04:02,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625642960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:04:02,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:04:02,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 08:04:02,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496855465] [2021-12-18 08:04:02,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:04:02,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:04:02,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:04:02,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:04:02,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 08:04:02,388 INFO L87 Difference]: Start difference. First operand 5736 states and 8192 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 08:04:05,213 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 08:04:17,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:04:17,509 INFO L93 Difference]: Finished difference Result 20806 states and 31045 transitions. [2021-12-18 08:04:17,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 08:04:17,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2021-12-18 08:04:17,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:04:17,565 INFO L225 Difference]: With dead ends: 20806 [2021-12-18 08:04:17,565 INFO L226 Difference]: Without dead ends: 15076 [2021-12-18 08:04:17,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-18 08:04:17,586 INFO L933 BasicCegarLoop]: 3900 mSDtfsCounter, 10491 mSDsluCounter, 5820 mSDsCounter, 0 mSdLazyCounter, 6452 mSolverCounterSat, 10059 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11263 SdHoareTripleChecker+Valid, 9720 SdHoareTripleChecker+Invalid, 16512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10059 IncrementalHoareTripleChecker+Valid, 6452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-12-18 08:04:17,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11263 Valid, 9720 Invalid, 16512 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10059 Valid, 6452 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2021-12-18 08:04:17,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15076 states. [2021-12-18 08:04:18,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15076 to 11332. [2021-12-18 08:04:18,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11332 states, 7754 states have (on average 1.3442094402888831) internal successors, (10423), 7919 states have internal predecessors, (10423), 2866 states have call successors, (2866), 704 states have call predecessors, (2866), 711 states have return successors, (2885), 2824 states have call predecessors, (2885), 2865 states have call successors, (2885) [2021-12-18 08:04:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11332 states to 11332 states and 16174 transitions. [2021-12-18 08:04:18,090 INFO L78 Accepts]: Start accepts. Automaton has 11332 states and 16174 transitions. Word has length 113 [2021-12-18 08:04:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:04:18,091 INFO L470 AbstractCegarLoop]: Abstraction has 11332 states and 16174 transitions. [2021-12-18 08:04:18,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 08:04:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 11332 states and 16174 transitions. [2021-12-18 08:04:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-18 08:04:18,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:04:18,100 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 08:04:18,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 08:04:18,100 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:04:18,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:04:18,101 INFO L85 PathProgramCache]: Analyzing trace with hash 551761797, now seen corresponding path program 1 times [2021-12-18 08:04:18,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:04:18,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473719348] [2021-12-18 08:04:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:04:18,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:04:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 08:04:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:04:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:04:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:04:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 08:04:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 08:04:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 08:04:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 08:04:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:04:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 08:04:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 08:04:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:18,368 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-18 08:04:18,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:04:18,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473719348] [2021-12-18 08:04:18,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473719348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:04:18,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:04:18,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:04:18,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538301741] [2021-12-18 08:04:18,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:04:18,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:04:18,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:04:18,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:04:18,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:04:18,371 INFO L87 Difference]: Start difference. First operand 11332 states and 16174 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 08:04:21,437 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 08:04:42,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:04:42,105 INFO L93 Difference]: Finished difference Result 44333 states and 67319 transitions. [2021-12-18 08:04:42,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:04:42,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2021-12-18 08:04:42,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:04:42,300 INFO L225 Difference]: With dead ends: 44333 [2021-12-18 08:04:42,300 INFO L226 Difference]: Without dead ends: 33007 [2021-12-18 08:04:42,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-18 08:04:42,334 INFO L933 BasicCegarLoop]: 4020 mSDtfsCounter, 11413 mSDsluCounter, 9711 mSDsCounter, 0 mSdLazyCounter, 12306 mSolverCounterSat, 11057 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12227 SdHoareTripleChecker+Valid, 13731 SdHoareTripleChecker+Invalid, 23364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11057 IncrementalHoareTripleChecker+Valid, 12306 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:04:42,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12227 Valid, 13731 Invalid, 23364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11057 Valid, 12306 Invalid, 1 Unknown, 0 Unchecked, 22.1s Time] [2021-12-18 08:04:42,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33007 states. [2021-12-18 08:04:43,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33007 to 22433. [2021-12-18 08:04:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22433 states, 15340 states have (on average 1.3429595827900913) internal successors, (20601), 15671 states have internal predecessors, (20601), 5673 states have call successors, (5673), 1404 states have call predecessors, (5673), 1419 states have return successors, (5712), 5589 states have call predecessors, (5712), 5672 states have call successors, (5712) [2021-12-18 08:04:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22433 states to 22433 states and 31986 transitions. [2021-12-18 08:04:43,364 INFO L78 Accepts]: Start accepts. Automaton has 22433 states and 31986 transitions. Word has length 135 [2021-12-18 08:04:43,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:04:43,364 INFO L470 AbstractCegarLoop]: Abstraction has 22433 states and 31986 transitions. [2021-12-18 08:04:43,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 08:04:43,365 INFO L276 IsEmpty]: Start isEmpty. Operand 22433 states and 31986 transitions. [2021-12-18 08:04:43,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-18 08:04:43,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:04:43,371 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-18 08:04:43,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 08:04:43,372 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:04:43,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:04:43,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1324870987, now seen corresponding path program 1 times [2021-12-18 08:04:43,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:04:43,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427479215] [2021-12-18 08:04:43,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:04:43,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:04:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:04:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:04:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 08:04:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:04:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 08:04:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 08:04:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 08:04:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:04:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 08:04:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:04:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 08:04:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 08:04:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 08:04:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 08:04:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 08:04:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:04:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-18 08:04:43,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:04:43,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427479215] [2021-12-18 08:04:43,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427479215] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:04:43,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:04:43,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:04:43,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517152371] [2021-12-18 08:04:43,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:04:43,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:04:43,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:04:43,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:04:43,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:04:43,655 INFO L87 Difference]: Start difference. First operand 22433 states and 31986 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 08:04:46,427 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 08:05:06,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:05:06,299 INFO L93 Difference]: Finished difference Result 87517 states and 132615 transitions. [2021-12-18 08:05:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:05:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2021-12-18 08:05:06,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:05:06,667 INFO L225 Difference]: With dead ends: 87517 [2021-12-18 08:05:06,668 INFO L226 Difference]: Without dead ends: 65090 [2021-12-18 08:05:06,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-18 08:05:06,747 INFO L933 BasicCegarLoop]: 4109 mSDtfsCounter, 11630 mSDsluCounter, 8043 mSDsCounter, 0 mSdLazyCounter, 9812 mSolverCounterSat, 11073 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12420 SdHoareTripleChecker+Valid, 12152 SdHoareTripleChecker+Invalid, 20886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11073 IncrementalHoareTripleChecker+Valid, 9812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2021-12-18 08:05:06,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12420 Valid, 12152 Invalid, 20886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11073 Valid, 9812 Invalid, 1 Unknown, 0 Unchecked, 19.4s Time] [2021-12-18 08:05:06,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65090 states. [2021-12-18 08:05:08,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65090 to 43948. [2021-12-18 08:05:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43948 states, 30010 states have (on average 1.3388537154281905) internal successors, (40179), 30673 states have internal predecessors, (40179), 11110 states have call successors, (11110), 2796 states have call predecessors, (11110), 2827 states have return successors, (11189), 10942 states have call predecessors, (11189), 11109 states have call successors, (11189) [2021-12-18 08:05:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43948 states to 43948 states and 62478 transitions. [2021-12-18 08:05:08,941 INFO L78 Accepts]: Start accepts. Automaton has 43948 states and 62478 transitions. Word has length 153 [2021-12-18 08:05:08,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:05:08,942 INFO L470 AbstractCegarLoop]: Abstraction has 43948 states and 62478 transitions. [2021-12-18 08:05:08,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 08:05:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 43948 states and 62478 transitions. [2021-12-18 08:05:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-18 08:05:08,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:05:08,949 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-18 08:05:08,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 08:05:08,949 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:05:08,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:05:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash -883325423, now seen corresponding path program 1 times [2021-12-18 08:05:08,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:05:08,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769344358] [2021-12-18 08:05:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:05:08,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:05:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:05:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:05:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 08:05:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:05:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 08:05:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 08:05:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 08:05:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 08:05:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 08:05:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 08:05:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 08:05:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 08:05:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:05:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 08:05:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 08:05:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-18 08:05:09,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:05:09,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769344358] [2021-12-18 08:05:09,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769344358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:05:09,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:05:09,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:05:09,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339738161] [2021-12-18 08:05:09,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:05:09,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:05:09,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:05:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:05:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:05:09,222 INFO L87 Difference]: Start difference. First operand 43948 states and 62478 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 08:05:12,192 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 08:05:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:05:39,628 INFO L93 Difference]: Finished difference Result 173308 states and 262269 transitions. [2021-12-18 08:05:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:05:39,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2021-12-18 08:05:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:05:40,632 INFO L225 Difference]: With dead ends: 173308 [2021-12-18 08:05:40,633 INFO L226 Difference]: Without dead ends: 129366 [2021-12-18 08:05:40,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-18 08:05:40,820 INFO L933 BasicCegarLoop]: 5048 mSDtfsCounter, 10970 mSDsluCounter, 9573 mSDsCounter, 0 mSdLazyCounter, 10342 mSolverCounterSat, 10081 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11778 SdHoareTripleChecker+Valid, 14621 SdHoareTripleChecker+Invalid, 20424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10081 IncrementalHoareTripleChecker+Valid, 10342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2021-12-18 08:05:40,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11778 Valid, 14621 Invalid, 20424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10081 Valid, 10342 Invalid, 1 Unknown, 0 Unchecked, 23.8s Time] [2021-12-18 08:05:40,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129366 states. [2021-12-18 08:05:45,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129366 to 87086. [2021-12-18 08:05:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87086 states, 59430 states have (on average 1.33708564697964) internal successors, (79463), 60757 states have internal predecessors, (79463), 22004 states have call successors, (22004), 5588 states have call predecessors, (22004), 5651 states have return successors, (22163), 21668 states have call predecessors, (22163), 22003 states have call successors, (22163) [2021-12-18 08:05:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87086 states to 87086 states and 123630 transitions. [2021-12-18 08:05:45,749 INFO L78 Accepts]: Start accepts. Automaton has 87086 states and 123630 transitions. Word has length 155 [2021-12-18 08:05:45,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:05:45,750 INFO L470 AbstractCegarLoop]: Abstraction has 87086 states and 123630 transitions. [2021-12-18 08:05:45,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 08:05:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 87086 states and 123630 transitions. [2021-12-18 08:05:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-18 08:05:45,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:05:45,758 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:45,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 08:05:45,758 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:05:45,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:05:45,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1669876051, now seen corresponding path program 1 times [2021-12-18 08:05:45,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:05:45,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040937715] [2021-12-18 08:05:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:05:45,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:05:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:05:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:05:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 08:05:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:05:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 08:05:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 08:05:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 08:05:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:05:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:05:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 08:05:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 08:05:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:05:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 08:05:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-18 08:05:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 08:05:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 08:05:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 08:05:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:05:46,047 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-18 08:05:46,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:05:46,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040937715] [2021-12-18 08:05:46,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040937715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:05:46,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:05:46,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:05:46,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839141334] [2021-12-18 08:05:46,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:05:46,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:05:46,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:05:46,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:05:46,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:05:46,049 INFO L87 Difference]: Start difference. First operand 87086 states and 123630 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 08:05:49,064 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 08:06:21,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:06:21,193 INFO L93 Difference]: Finished difference Result 341625 states and 515637 transitions. [2021-12-18 08:06:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:06:21,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2021-12-18 08:06:21,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:06:22,976 INFO L225 Difference]: With dead ends: 341625 [2021-12-18 08:06:22,976 INFO L226 Difference]: Without dead ends: 254545 [2021-12-18 08:06:23,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-18 08:06:23,594 INFO L933 BasicCegarLoop]: 4010 mSDtfsCounter, 11290 mSDsluCounter, 7741 mSDsCounter, 0 mSdLazyCounter, 9850 mSolverCounterSat, 11070 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12073 SdHoareTripleChecker+Valid, 11751 SdHoareTripleChecker+Invalid, 20921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11070 IncrementalHoareTripleChecker+Valid, 9850 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2021-12-18 08:06:23,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12073 Valid, 11751 Invalid, 20921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11070 Valid, 9850 Invalid, 1 Unknown, 0 Unchecked, 22.3s Time] [2021-12-18 08:06:23,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254545 states. [2021-12-18 08:06:32,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254545 to 169996. [2021-12-18 08:06:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169996 states, 115851 states have (on average 1.3320213032256951) internal successors, (154316), 118506 states have internal predecessors, (154316), 42879 states have call successors, (42879), 11138 states have call predecessors, (42879), 11265 states have return successors, (43198), 42207 states have call predecessors, (43198), 42878 states have call successors, (43198) [2021-12-18 08:06:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169996 states to 169996 states and 240393 transitions. [2021-12-18 08:06:33,358 INFO L78 Accepts]: Start accepts. Automaton has 169996 states and 240393 transitions. Word has length 167 [2021-12-18 08:06:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:06:33,359 INFO L470 AbstractCegarLoop]: Abstraction has 169996 states and 240393 transitions. [2021-12-18 08:06:33,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 08:06:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 169996 states and 240393 transitions. [2021-12-18 08:06:33,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-12-18 08:06:33,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:06:33,413 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 08:06:33,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 08:06:33,414 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:06:33,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:06:33,414 INFO L85 PathProgramCache]: Analyzing trace with hash -881759899, now seen corresponding path program 1 times [2021-12-18 08:06:33,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:06:33,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630807417] [2021-12-18 08:06:33,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:06:33,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:06:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:06:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 08:06:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 08:06:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:06:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 08:06:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:06:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 08:06:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:06:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 08:06:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 08:06:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 08:06:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 08:06:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 08:06:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:06:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 08:06:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 08:06:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:06:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 08:06:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 08:06:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:06:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:06:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 08:06:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:06:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 08:06:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:06:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-18 08:06:34,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:06:34,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630807417] [2021-12-18 08:06:34,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630807417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:06:34,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:06:34,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 08:06:34,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273063412] [2021-12-18 08:06:34,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:06:34,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 08:06:34,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:06:34,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 08:06:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 08:06:34,363 INFO L87 Difference]: Start difference. First operand 169996 states and 240393 transitions. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 08:06:37,856 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 []