./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.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 a82ce6420bb3a33f545de9c61d1c9b088648b3b20e86d3c3faffeeee8d72c08d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 06:29:09,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 06:29:09,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 06:29:09,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 06:29:09,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 06:29:09,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 06:29:09,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 06:29:09,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 06:29:09,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 06:29:09,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 06:29:09,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 06:29:09,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 06:29:09,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 06:29:09,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 06:29:09,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 06:29:09,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 06:29:09,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 06:29:09,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 06:29:09,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 06:29:09,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 06:29:09,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 06:29:09,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 06:29:09,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 06:29:09,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 06:29:09,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 06:29:09,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 06:29:09,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 06:29:09,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 06:29:09,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 06:29:09,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 06:29:09,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 06:29:09,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 06:29:09,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 06:29:09,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 06:29:09,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 06:29:09,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 06:29:09,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 06:29:09,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 06:29:09,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 06:29:09,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 06:29:09,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 06:29:09,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 06:29:09,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 06:29:09,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 06:29:09,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 06:29:09,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 06:29:09,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 06:29:09,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 06:29:09,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 06:29:09,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 06:29:09,216 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 06:29:09,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 06:29:09,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 06:29:09,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 06:29:09,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 06:29:09,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 06:29:09,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 06:29:09,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 06:29:09,218 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 06:29:09,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 06:29:09,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 06:29:09,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 06:29:09,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 06:29:09,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 06:29:09,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 06:29:09,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 06:29:09,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 06:29:09,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 06:29:09,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 06:29:09,220 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 06:29:09,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 06:29:09,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 06:29:09,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 06:29:09,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a82ce6420bb3a33f545de9c61d1c9b088648b3b20e86d3c3faffeeee8d72c08d [2021-11-17 06:29:09,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 06:29:09,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 06:29:09,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 06:29:09,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 06:29:09,456 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 06:29:09,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i [2021-11-17 06:29:09,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d79c0505/14d6a993d9c44f72805de9bf35e0f17c/FLAG4d9c5b178 [2021-11-17 06:29:10,306 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 06:29:10,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i [2021-11-17 06:29:10,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d79c0505/14d6a993d9c44f72805de9bf35e0f17c/FLAG4d9c5b178 [2021-11-17 06:29:10,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d79c0505/14d6a993d9c44f72805de9bf35e0f17c [2021-11-17 06:29:10,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 06:29:10,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 06:29:10,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 06:29:10,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 06:29:10,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 06:29:10,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:29:10" (1/1) ... [2021-11-17 06:29:10,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339f03f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:10, skipping insertion in model container [2021-11-17 06:29:10,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:29:10" (1/1) ... [2021-11-17 06:29:10,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 06:29:10,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 06:29:12,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i[342349,342362] [2021-11-17 06:29:12,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i[342494,342507] [2021-11-17 06:29:12,987 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 06:29:13,030 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 06:29:13,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i[342349,342362] [2021-11-17 06:29:13,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i[342494,342507] [2021-11-17 06:29:13,343 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 06:29:13,507 INFO L208 MainTranslator]: Completed translation [2021-11-17 06:29:13,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13 WrapperNode [2021-11-17 06:29:13,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 06:29:13,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 06:29:13,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 06:29:13,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 06:29:13,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:13,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:13,789 INFO L137 Inliner]: procedures = 455, calls = 2192, calls flagged for inlining = 223, calls inlined = 189, statements flattened = 5075 [2021-11-17 06:29:13,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 06:29:13,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 06:29:13,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 06:29:13,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 06:29:13,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:13,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:13,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:13,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:13,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:13,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:14,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:14,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 06:29:14,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 06:29:14,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 06:29:14,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 06:29:14,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (1/1) ... [2021-11-17 06:29:14,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 06:29:14,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 06:29:14,089 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) [2021-11-17 06:29:14,117 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 [2021-11-17 06:29:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 06:29:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 06:29:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 06:29:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 06:29:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 06:29:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 06:29:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 06:29:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 06:29:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 06:29:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 06:29:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 06:29:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 06:29:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_wakeup [2021-11-17 06:29:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_wakeup [2021-11-17 06:29:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_wait_status [2021-11-17 06:29:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_wait_status [2021-11-17 06:29:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_set_rx_mode [2021-11-17 06:29:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_set_rx_mode [2021-11-17 06:29:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 06:29:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 06:29:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 06:29:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 06:29:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 06:29:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 06:29:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 06:29:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 06:29:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-17 06:29:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 06:29:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 06:29:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 06:29:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 06:29:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 06:29:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 06:29:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 06:29:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 06:29:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 06:29:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 06:29:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 06:29:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 06:29:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 06:29:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 06:29:14,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 06:29:14,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 06:29:14,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 06:29:14,138 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_clean_tx [2021-11-17 06:29:14,138 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_clean_tx [2021-11-17 06:29:14,139 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_stop_runtime [2021-11-17 06:29:14,139 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_stop_runtime [2021-11-17 06:29:14,139 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 06:29:14,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 06:29:14,139 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_resume [2021-11-17 06:29:14,139 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_resume [2021-11-17 06:29:14,139 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_inc_rxfree_index [2021-11-17 06:29:14,140 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_inc_rxfree_index [2021-11-17 06:29:14,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 06:29:14,141 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_remove_one [2021-11-17 06:29:14,141 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_remove_one [2021-11-17 06:29:14,141 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 06:29:14,142 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 06:29:14,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 06:29:14,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 06:29:14,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 06:29:14,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 06:29:14,142 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 06:29:14,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 06:29:14,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 06:29:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 06:29:14,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 06:29:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 06:29:14,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 06:29:14,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 06:29:14,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 06:29:14,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 06:29:14,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-17 06:29:14,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-17 06:29:14,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 06:29:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 06:29:14,145 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 06:29:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 06:29:14,145 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_close [2021-11-17 06:29:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_close [2021-11-17 06:29:14,145 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_tx_timeout [2021-11-17 06:29:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_tx_timeout [2021-11-17 06:29:14,145 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_alloc_rx_skb [2021-11-17 06:29:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_alloc_rx_skb [2021-11-17 06:29:14,146 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_issue_command [2021-11-17 06:29:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_issue_command [2021-11-17 06:29:14,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 06:29:14,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 06:29:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 06:29:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 06:29:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 06:29:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 06:29:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_process_response [2021-11-17 06:29:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_process_response [2021-11-17 06:29:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 06:29:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 06:29:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 06:29:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 06:29:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 06:29:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 06:29:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 06:29:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-17 06:29:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-17 06:29:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-17 06:29:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-17 06:29:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-17 06:29:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-17 06:29:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_num_free_tx [2021-11-17 06:29:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_num_free_tx [2021-11-17 06:29:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-17 06:29:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-17 06:29:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_reset [2021-11-17 06:29:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_reset [2021-11-17 06:29:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 06:29:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 06:29:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 06:29:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 06:29:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_inc_cmd_index [2021-11-17 06:29:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_inc_cmd_index [2021-11-17 06:29:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 06:29:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 06:29:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_fill_free_ring [2021-11-17 06:29:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_fill_free_ring [2021-11-17 06:29:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 06:29:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 06:29:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-17 06:29:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-17 06:29:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 06:29:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 06:29:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 06:29:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 06:29:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 06:29:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 06:29:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 06:29:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 06:29:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 06:29:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 06:29:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 06:29:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 06:29:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 06:29:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 06:29:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 06:29:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 06:29:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_wait_interrupt [2021-11-17 06:29:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_wait_interrupt [2021-11-17 06:29:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 06:29:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 06:29:14,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 06:29:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 06:29:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-11-17 06:29:14,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-11-17 06:29:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 06:29:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_boot_3XP [2021-11-17 06:29:14,165 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_boot_3XP [2021-11-17 06:29:14,166 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-17 06:29:14,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-17 06:29:14,166 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 06:29:14,166 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 06:29:14,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 06:29:14,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 06:29:14,166 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-17 06:29:14,166 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-17 06:29:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 06:29:14,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 06:29:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-17 06:29:14,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-17 06:29:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 06:29:14,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 06:29:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 06:29:14,167 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 06:29:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_free_rx_rings [2021-11-17 06:29:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_free_rx_rings [2021-11-17 06:29:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 06:29:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 06:29:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_do_get_stats [2021-11-17 06:29:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_do_get_stats [2021-11-17 06:29:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_num_free [2021-11-17 06:29:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_num_free [2021-11-17 06:29:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_sleep [2021-11-17 06:29:14,169 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_sleep [2021-11-17 06:29:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 06:29:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 06:29:14,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 06:29:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-11-17 06:29:14,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-11-17 06:29:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_init_rings [2021-11-17 06:29:14,169 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_init_rings [2021-11-17 06:29:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 06:29:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 06:29:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_open [2021-11-17 06:29:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_open [2021-11-17 06:29:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 06:29:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 06:29:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_start_runtime [2021-11-17 06:29:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_start_runtime [2021-11-17 06:29:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 06:29:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 06:29:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 06:29:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 06:29:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 06:29:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_inc_index [2021-11-17 06:29:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_inc_index [2021-11-17 06:29:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 06:29:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 06:29:14,922 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 06:29:14,927 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 06:29:15,010 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 06:29:26,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 06:29:26,888 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 06:29:26,908 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 06:29:26,908 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 06:29:26,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 06:29:26 BoogieIcfgContainer [2021-11-17 06:29:26,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 06:29:26,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 06:29:26,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 06:29:26,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 06:29:26,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 06:29:10" (1/3) ... [2021-11-17 06:29:26,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebb54c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:29:26, skipping insertion in model container [2021-11-17 06:29:26,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:29:13" (2/3) ... [2021-11-17 06:29:26,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebb54c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:29:26, skipping insertion in model container [2021-11-17 06:29:26,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 06:29:26" (3/3) ... [2021-11-17 06:29:26,920 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i [2021-11-17 06:29:26,927 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 06:29:26,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 06:29:27,002 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 06:29:27,007 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 [2021-11-17 06:29:27,009 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 06:29:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 1745 states, 1179 states have (on average 1.2790500424088211) internal successors, (1508), 1201 states have internal predecessors, (1508), 472 states have call successors, (472), 94 states have call predecessors, (472), 93 states have return successors, (467), 461 states have call predecessors, (467), 467 states have call successors, (467) [2021-11-17 06:29:27,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-17 06:29:27,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:29:27,113 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:29:27,114 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:29:27,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:29:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash -480123427, now seen corresponding path program 1 times [2021-11-17 06:29:27,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:29:27,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116904615] [2021-11-17 06:29:27,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:29:27,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:29:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:29:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:29:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:29:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:29:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:29:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:29:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:29:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:29:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:29:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 06:29:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 06:29:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 06:29:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:29:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:29:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:29:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:29:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 06:29:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 06:29:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:27,953 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-17 06:29:27,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:29:27,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116904615] [2021-11-17 06:29:27,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116904615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:29:27,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:29:27,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:29:27,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981057131] [2021-11-17 06:29:27,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:29:27,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:29:27,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:29:27,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:29:27,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:29:27,994 INFO L87 Difference]: Start difference. First operand has 1745 states, 1179 states have (on average 1.2790500424088211) internal successors, (1508), 1201 states have internal predecessors, (1508), 472 states have call successors, (472), 94 states have call predecessors, (472), 93 states have return successors, (467), 461 states have call predecessors, (467), 467 states have call successors, (467) Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 06:29:32,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:29:35,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:29:40,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:29:41,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:29:41,383 INFO L93 Difference]: Finished difference Result 4783 states and 6867 transitions. [2021-11-17 06:29:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:29:41,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 197 [2021-11-17 06:29:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:29:41,436 INFO L225 Difference]: With dead ends: 4783 [2021-11-17 06:29:41,436 INFO L226 Difference]: Without dead ends: 2993 [2021-11-17 06:29:41,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:29:41,467 INFO L933 BasicCegarLoop]: 2468 mSDtfsCounter, 3104 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 2263 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3319 SdHoareTripleChecker+Valid, 6001 SdHoareTripleChecker+Invalid, 4694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2263 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2021-11-17 06:29:41,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3319 Valid, 6001 Invalid, 4694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2263 Valid, 2428 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2021-11-17 06:29:41,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2021-11-17 06:29:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2769. [2021-11-17 06:29:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 1913 states have (on average 1.273392577104025) internal successors, (2436), 1946 states have internal predecessors, (2436), 700 states have call successors, (700), 155 states have call predecessors, (700), 155 states have return successors, (700), 691 states have call predecessors, (700), 700 states have call successors, (700) [2021-11-17 06:29:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3836 transitions. [2021-11-17 06:29:41,785 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3836 transitions. Word has length 197 [2021-11-17 06:29:41,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:29:41,788 INFO L470 AbstractCegarLoop]: Abstraction has 2769 states and 3836 transitions. [2021-11-17 06:29:41,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 06:29:41,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3836 transitions. [2021-11-17 06:29:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-17 06:29:41,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:29:41,806 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:29:41,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 06:29:41,807 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:29:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:29:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1020957030, now seen corresponding path program 1 times [2021-11-17 06:29:41,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:29:41,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067958092] [2021-11-17 06:29:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:29:41,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:29:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:29:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:41,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:29:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:41,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:29:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:29:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:29:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:29:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:29:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:29:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:29:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 06:29:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 06:29:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:29:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:29:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:29:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:29:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:29:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:29:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 06:29:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 06:29:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 06:29:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 06:29:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 06:29:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 06:29:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:29:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 06:29:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:29:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-17 06:29:42,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:29:42,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067958092] [2021-11-17 06:29:42,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067958092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:29:42,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:29:42,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 06:29:42,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438403820] [2021-11-17 06:29:42,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:29:42,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 06:29:42,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:29:42,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 06:29:42,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 06:29:42,229 INFO L87 Difference]: Start difference. First operand 2769 states and 3836 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 06:29:44,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:29:45,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:29:50,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:29:52,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:29:54,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:29:58,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:30:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:30:00,642 INFO L93 Difference]: Finished difference Result 7427 states and 10449 transitions. [2021-11-17 06:30:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:30:00,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 217 [2021-11-17 06:30:00,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:30:00,676 INFO L225 Difference]: With dead ends: 7427 [2021-11-17 06:30:00,677 INFO L226 Difference]: Without dead ends: 4679 [2021-11-17 06:30:00,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:30:00,690 INFO L933 BasicCegarLoop]: 2438 mSDtfsCounter, 2805 mSDsluCounter, 4254 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 1457 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3217 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 4981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1457 IncrementalHoareTripleChecker+Valid, 3521 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-17 06:30:00,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3217 Valid, 6692 Invalid, 4981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1457 Valid, 3521 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2021-11-17 06:30:00,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4679 states. [2021-11-17 06:30:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4679 to 4316. [2021-11-17 06:30:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4316 states, 2960 states have (on average 1.2679054054054053) internal successors, (3753), 3016 states have internal predecessors, (3753), 1103 states have call successors, (1103), 251 states have call predecessors, (1103), 252 states have return successors, (1106), 1085 states have call predecessors, (1106), 1103 states have call successors, (1106) [2021-11-17 06:30:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4316 states to 4316 states and 5962 transitions. [2021-11-17 06:30:00,904 INFO L78 Accepts]: Start accepts. Automaton has 4316 states and 5962 transitions. Word has length 217 [2021-11-17 06:30:00,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:30:00,906 INFO L470 AbstractCegarLoop]: Abstraction has 4316 states and 5962 transitions. [2021-11-17 06:30:00,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 06:30:00,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4316 states and 5962 transitions. [2021-11-17 06:30:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-17 06:30:00,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:30:00,913 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2021-11-17 06:30:00,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 06:30:00,913 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:30:00,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:30:00,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1306383226, now seen corresponding path program 1 times [2021-11-17 06:30:00,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:30:00,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657197296] [2021-11-17 06:30:00,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:30:00,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:30:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:30:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:30:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:30:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:30:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:30:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:30:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:30:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:30:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:30:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:30:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:30:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:30:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:30:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:30:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:30:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:30:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 06:30:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 06:30:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 06:30:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 06:30:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:30:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:30:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 06:30:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-17 06:30:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2021-11-17 06:30:01,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:30:01,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657197296] [2021-11-17 06:30:01,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657197296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:30:01,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:30:01,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:30:01,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321337679] [2021-11-17 06:30:01,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:30:01,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:30:01,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:30:01,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:30:01,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:30:01,342 INFO L87 Difference]: Start difference. First operand 4316 states and 5962 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 06:30:03,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:06,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:30:09,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:11,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:13,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:16,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:20,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:30:20,142 INFO L93 Difference]: Finished difference Result 10273 states and 14388 transitions. [2021-11-17 06:30:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:30:20,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 260 [2021-11-17 06:30:20,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:30:20,180 INFO L225 Difference]: With dead ends: 10273 [2021-11-17 06:30:20,181 INFO L226 Difference]: Without dead ends: 5978 [2021-11-17 06:30:20,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:30:20,201 INFO L933 BasicCegarLoop]: 3485 mSDtfsCounter, 2335 mSDsluCounter, 4429 mSDsCounter, 0 mSdLazyCounter, 2628 mSolverCounterSat, 1628 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 7914 SdHoareTripleChecker+Invalid, 4261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1628 IncrementalHoareTripleChecker+Valid, 2628 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-11-17 06:30:20,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2544 Valid, 7914 Invalid, 4261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1628 Valid, 2628 Invalid, 5 Unknown, 0 Unchecked, 18.5s Time] [2021-11-17 06:30:20,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5978 states. [2021-11-17 06:30:20,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5978 to 5532. [2021-11-17 06:30:20,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 3823 states have (on average 1.2657598744441538) internal successors, (4839), 3892 states have internal predecessors, (4839), 1381 states have call successors, (1381), 326 states have call predecessors, (1381), 327 states have return successors, (1384), 1359 states have call predecessors, (1384), 1381 states have call successors, (1384) [2021-11-17 06:30:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 7604 transitions. [2021-11-17 06:30:20,474 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 7604 transitions. Word has length 260 [2021-11-17 06:30:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:30:20,476 INFO L470 AbstractCegarLoop]: Abstraction has 5532 states and 7604 transitions. [2021-11-17 06:30:20,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 06:30:20,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 7604 transitions. [2021-11-17 06:30:20,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-11-17 06:30:20,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:30:20,485 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:30:20,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 06:30:20,486 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:30:20,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:30:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1954976059, now seen corresponding path program 1 times [2021-11-17 06:30:20,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:30:20,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355291320] [2021-11-17 06:30:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:30:20,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:30:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:30:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:30:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:30:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:30:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:30:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:30:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:30:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:30:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:30:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:30:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:30:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:30:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:30:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:30:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:30:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:30:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:30:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:30:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:30:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:30:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:30:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:30:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 06:30:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 06:30:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 06:30:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 06:30:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:30:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:30:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 06:30:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 06:30:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-11-17 06:30:20,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:30:20,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355291320] [2021-11-17 06:30:20,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355291320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:30:20,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:30:20,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:30:20,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079272185] [2021-11-17 06:30:20,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:30:20,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:30:20,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:30:20,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:30:20,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:30:20,915 INFO L87 Difference]: Start difference. First operand 5532 states and 7604 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (42), 4 states have call predecessors, (42), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 06:30:23,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:26,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:30:30,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:33,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:34,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:30:34,541 INFO L93 Difference]: Finished difference Result 12767 states and 17790 transitions. [2021-11-17 06:30:34,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:30:34,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (42), 4 states have call predecessors, (42), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 334 [2021-11-17 06:30:34,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:30:34,586 INFO L225 Difference]: With dead ends: 12767 [2021-11-17 06:30:34,587 INFO L226 Difference]: Without dead ends: 7256 [2021-11-17 06:30:34,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:30:34,666 INFO L933 BasicCegarLoop]: 3463 mSDtfsCounter, 2341 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 1617 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2552 SdHoareTripleChecker+Valid, 7876 SdHoareTripleChecker+Invalid, 4230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1617 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-17 06:30:34,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2552 Valid, 7876 Invalid, 4230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1617 Valid, 2610 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2021-11-17 06:30:34,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7256 states. [2021-11-17 06:30:34,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7256 to 6726. [2021-11-17 06:30:34,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6726 states, 4672 states have (on average 1.2651969178082192) internal successors, (5911), 4754 states have internal predecessors, (5911), 1653 states have call successors, (1653), 399 states have call predecessors, (1653), 400 states have return successors, (1656), 1627 states have call predecessors, (1656), 1653 states have call successors, (1656) [2021-11-17 06:30:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6726 states to 6726 states and 9220 transitions. [2021-11-17 06:30:34,943 INFO L78 Accepts]: Start accepts. Automaton has 6726 states and 9220 transitions. Word has length 334 [2021-11-17 06:30:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:30:34,944 INFO L470 AbstractCegarLoop]: Abstraction has 6726 states and 9220 transitions. [2021-11-17 06:30:34,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (42), 4 states have call predecessors, (42), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 06:30:34,945 INFO L276 IsEmpty]: Start isEmpty. Operand 6726 states and 9220 transitions. [2021-11-17 06:30:34,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-11-17 06:30:34,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:30:34,954 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:30:34,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 06:30:34,954 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:30:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:30:34,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1301406663, now seen corresponding path program 1 times [2021-11-17 06:30:34,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:30:34,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711006335] [2021-11-17 06:30:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:30:34,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:30:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:30:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:30:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:30:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:30:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:30:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:30:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:30:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:30:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:30:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:30:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:30:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:30:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:30:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:30:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:30:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:30:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:30:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:30:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:30:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:30:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:30:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:30:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 06:30:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 06:30:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 06:30:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 06:30:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:30:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:30:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 06:30:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 06:30:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:35,434 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-11-17 06:30:35,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:30:35,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711006335] [2021-11-17 06:30:35,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711006335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:30:35,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:30:35,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:30:35,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094585309] [2021-11-17 06:30:35,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:30:35,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:30:35,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:30:35,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:30:35,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:30:35,437 INFO L87 Difference]: Start difference. First operand 6726 states and 9220 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (42), 4 states have call predecessors, (42), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 06:30:37,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:39,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:42,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:30:45,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:30:50,150 INFO L93 Difference]: Finished difference Result 16299 states and 22666 transitions. [2021-11-17 06:30:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:30:50,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (42), 4 states have call predecessors, (42), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 334 [2021-11-17 06:30:50,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:30:50,203 INFO L225 Difference]: With dead ends: 16299 [2021-11-17 06:30:50,204 INFO L226 Difference]: Without dead ends: 9594 [2021-11-17 06:30:50,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:30:50,231 INFO L933 BasicCegarLoop]: 3545 mSDtfsCounter, 2936 mSDsluCounter, 4235 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 1790 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3223 SdHoareTripleChecker+Valid, 7780 SdHoareTripleChecker+Invalid, 4520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1790 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-17 06:30:50,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3223 Valid, 7780 Invalid, 4520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1790 Valid, 2726 Invalid, 4 Unknown, 0 Unchecked, 14.4s Time] [2021-11-17 06:30:50,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9594 states. [2021-11-17 06:30:50,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9594 to 8808. [2021-11-17 06:30:50,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8808 states, 6106 states have (on average 1.2638388470357025) internal successors, (7717), 6208 states have internal predecessors, (7717), 2163 states have call successors, (2163), 537 states have call predecessors, (2163), 538 states have return successors, (2166), 2130 states have call predecessors, (2166), 2163 states have call successors, (2166) [2021-11-17 06:30:50,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8808 states to 8808 states and 12046 transitions. [2021-11-17 06:30:50,600 INFO L78 Accepts]: Start accepts. Automaton has 8808 states and 12046 transitions. Word has length 334 [2021-11-17 06:30:50,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:30:50,602 INFO L470 AbstractCegarLoop]: Abstraction has 8808 states and 12046 transitions. [2021-11-17 06:30:50,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (42), 4 states have call predecessors, (42), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 06:30:50,602 INFO L276 IsEmpty]: Start isEmpty. Operand 8808 states and 12046 transitions. [2021-11-17 06:30:50,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2021-11-17 06:30:50,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:30:50,612 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:30:50,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 06:30:50,613 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:30:50,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:30:50,613 INFO L85 PathProgramCache]: Analyzing trace with hash 284597458, now seen corresponding path program 1 times [2021-11-17 06:30:50,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:30:50,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566292622] [2021-11-17 06:30:50,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:30:50,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:30:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:30:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:30:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:30:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:30:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:30:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:30:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:30:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:30:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:30:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:30:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:30:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:30:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:30:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:30:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:30:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:30:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:30:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:30:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:30:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:50,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:30:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:30:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:30:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:30:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:30:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:30:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:30:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:30:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:30:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:30:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 06:30:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 06:30:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 06:30:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-17 06:30:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:30:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:30:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:30:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-17 06:30:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:30:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 06:30:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:30:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked. [2021-11-17 06:30:51,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:30:51,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566292622] [2021-11-17 06:30:51,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566292622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:30:51,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:30:51,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:30:51,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828228218] [2021-11-17 06:30:51,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:30:51,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:30:51,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:30:51,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:30:51,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:30:51,141 INFO L87 Difference]: Start difference. First operand 8808 states and 12046 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-17 06:30:53,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:30:56,503 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:30:59,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:01,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:04,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:06,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:31:08,511 INFO L93 Difference]: Finished difference Result 19653 states and 27252 transitions. [2021-11-17 06:31:08,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:31:08,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2021-11-17 06:31:08,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:31:08,565 INFO L225 Difference]: With dead ends: 19653 [2021-11-17 06:31:08,566 INFO L226 Difference]: Without dead ends: 10866 [2021-11-17 06:31:08,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:31:08,595 INFO L933 BasicCegarLoop]: 3175 mSDtfsCounter, 2452 mSDsluCounter, 4099 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 1703 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 7274 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1703 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-17 06:31:08,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2662 Valid, 7274 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1703 Valid, 2546 Invalid, 5 Unknown, 0 Unchecked, 17.0s Time] [2021-11-17 06:31:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10866 states. [2021-11-17 06:31:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10866 to 9998. [2021-11-17 06:31:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9998 states, 6953 states have (on average 1.263771034086006) internal successors, (8787), 7068 states have internal predecessors, (8787), 2435 states have call successors, (2435), 608 states have call predecessors, (2435), 609 states have return successors, (2438), 2398 states have call predecessors, (2438), 2435 states have call successors, (2438) [2021-11-17 06:31:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9998 states to 9998 states and 13660 transitions. [2021-11-17 06:31:09,053 INFO L78 Accepts]: Start accepts. Automaton has 9998 states and 13660 transitions. Word has length 411 [2021-11-17 06:31:09,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:31:09,054 INFO L470 AbstractCegarLoop]: Abstraction has 9998 states and 13660 transitions. [2021-11-17 06:31:09,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-17 06:31:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9998 states and 13660 transitions. [2021-11-17 06:31:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-17 06:31:09,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:31:09,067 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:31:09,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 06:31:09,067 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:31:09,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:31:09,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1195203589, now seen corresponding path program 1 times [2021-11-17 06:31:09,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:31:09,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080305547] [2021-11-17 06:31:09,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:31:09,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:31:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:31:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:31:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:31:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:31:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:31:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:31:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:31:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:31:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:31:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:31:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:31:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:31:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:31:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:31:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:31:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:31:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:31:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:31:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:31:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:31:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:31:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:31:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:31:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:31:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:31:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:31:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:31:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:31:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:31:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-11-17 06:31:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 06:31:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 06:31:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-11-17 06:31:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:31:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:31:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 06:31:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-11-17 06:31:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked. [2021-11-17 06:31:09,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:31:09,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080305547] [2021-11-17 06:31:09,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080305547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:31:09,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:31:09,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:31:09,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139950546] [2021-11-17 06:31:09,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:31:09,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:31:09,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:31:09,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:31:09,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:31:09,536 INFO L87 Difference]: Start difference. First operand 9998 states and 13660 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-17 06:31:11,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:13,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:16,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:31:19,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:23,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:26,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:28,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:31:28,036 INFO L93 Difference]: Finished difference Result 22142 states and 30662 transitions. [2021-11-17 06:31:28,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:31:28,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 414 [2021-11-17 06:31:28,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:31:28,100 INFO L225 Difference]: With dead ends: 22142 [2021-11-17 06:31:28,100 INFO L226 Difference]: Without dead ends: 12165 [2021-11-17 06:31:28,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:31:28,135 INFO L933 BasicCegarLoop]: 3469 mSDtfsCounter, 2367 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 1623 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2577 SdHoareTripleChecker+Valid, 7892 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1623 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-17 06:31:28,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2577 Valid, 7892 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1623 Valid, 2610 Invalid, 6 Unknown, 0 Unchecked, 18.1s Time] [2021-11-17 06:31:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12165 states. [2021-11-17 06:31:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12165 to 11215. [2021-11-17 06:31:28,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11215 states, 7822 states have (on average 1.2634875990795194) internal successors, (9883), 7950 states have internal predecessors, (9883), 2709 states have call successors, (2709), 682 states have call predecessors, (2709), 683 states have return successors, (2712), 2668 states have call predecessors, (2712), 2709 states have call successors, (2712) [2021-11-17 06:31:28,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11215 states to 11215 states and 15304 transitions. [2021-11-17 06:31:28,586 INFO L78 Accepts]: Start accepts. Automaton has 11215 states and 15304 transitions. Word has length 414 [2021-11-17 06:31:28,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:31:28,587 INFO L470 AbstractCegarLoop]: Abstraction has 11215 states and 15304 transitions. [2021-11-17 06:31:28,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (48), 4 states have call predecessors, (48), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-17 06:31:28,587 INFO L276 IsEmpty]: Start isEmpty. Operand 11215 states and 15304 transitions. [2021-11-17 06:31:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2021-11-17 06:31:28,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:31:28,599 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:31:28,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 06:31:28,600 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:31:28,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:31:28,600 INFO L85 PathProgramCache]: Analyzing trace with hash 257661585, now seen corresponding path program 1 times [2021-11-17 06:31:28,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:31:28,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377755100] [2021-11-17 06:31:28,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:31:28,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:31:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:31:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:31:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:31:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:31:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:31:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:31:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:31:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:31:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:31:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:31:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:31:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:31:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:31:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:31:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:31:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:31:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:31:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:31:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:31:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:31:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:31:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:31:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:31:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:31:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:31:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:31:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:31:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:31:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:31:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:31:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:31:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:31:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 06:31:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-11-17 06:31:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-11-17 06:31:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-11-17 06:31:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:31:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:31:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-11-17 06:31:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-11-17 06:31:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 1093 trivial. 0 not checked. [2021-11-17 06:31:29,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:31:29,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377755100] [2021-11-17 06:31:29,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377755100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:31:29,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:31:29,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 06:31:29,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653047504] [2021-11-17 06:31:29,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:31:29,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 06:31:29,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:31:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 06:31:29,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 06:31:29,114 INFO L87 Difference]: Start difference. First operand 11215 states and 15304 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 4 states have internal predecessors, (178), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:31:31,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:33,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:35,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:38,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:31:40,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:31:43,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:31:45,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:31:47,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:31:49,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:31:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:31:55,767 INFO L93 Difference]: Finished difference Result 25654 states and 35498 transitions. [2021-11-17 06:31:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 06:31:55,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 4 states have internal predecessors, (178), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 452 [2021-11-17 06:31:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:31:55,828 INFO L225 Difference]: With dead ends: 25654 [2021-11-17 06:31:55,828 INFO L226 Difference]: Without dead ends: 14460 [2021-11-17 06:31:55,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 06:31:55,861 INFO L933 BasicCegarLoop]: 3400 mSDtfsCounter, 2719 mSDsluCounter, 9692 mSDsCounter, 0 mSdLazyCounter, 4813 mSolverCounterSat, 1835 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2965 SdHoareTripleChecker+Valid, 13092 SdHoareTripleChecker+Invalid, 6657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1835 IncrementalHoareTripleChecker+Valid, 4813 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2021-11-17 06:31:55,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2965 Valid, 13092 Invalid, 6657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1835 Valid, 4813 Invalid, 9 Unknown, 0 Unchecked, 26.2s Time] [2021-11-17 06:31:55,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14460 states. [2021-11-17 06:31:56,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14460 to 13342. [2021-11-17 06:31:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13342 states, 9267 states have (on average 1.2622207834250567) internal successors, (11697), 9418 states have internal predecessors, (11697), 3246 states have call successors, (3246), 826 states have call predecessors, (3246), 828 states have return successors, (3251), 3199 states have call predecessors, (3251), 3246 states have call successors, (3251) [2021-11-17 06:31:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13342 states to 13342 states and 18194 transitions. [2021-11-17 06:31:56,374 INFO L78 Accepts]: Start accepts. Automaton has 13342 states and 18194 transitions. Word has length 452 [2021-11-17 06:31:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:31:56,376 INFO L470 AbstractCegarLoop]: Abstraction has 13342 states and 18194 transitions. [2021-11-17 06:31:56,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 4 states have internal predecessors, (178), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:31:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 13342 states and 18194 transitions. [2021-11-17 06:31:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2021-11-17 06:31:56,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:31:56,386 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:31:56,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 06:31:56,386 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:31:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:31:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash -62067749, now seen corresponding path program 1 times [2021-11-17 06:31:56,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:31:56,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528452093] [2021-11-17 06:31:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:31:56,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:31:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:31:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:31:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:31:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:31:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:31:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:31:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:31:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:31:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:31:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:31:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:31:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:31:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:31:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:31:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:31:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:31:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:31:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:31:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:31:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:31:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:31:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:31:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:31:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:31:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:31:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:31:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:31:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:31:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:31:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:31:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:31:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 06:31:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-17 06:31:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 06:31:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-17 06:31:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-11-17 06:31:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:31:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:31:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:31:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:56,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 06:31:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:57,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:31:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-11-17 06:31:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:31:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 1093 trivial. 0 not checked. [2021-11-17 06:31:57,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:31:57,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528452093] [2021-11-17 06:31:57,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528452093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:31:57,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:31:57,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 06:31:57,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630442181] [2021-11-17 06:31:57,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:31:57,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 06:31:57,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:31:57,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 06:31:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 06:31:57,018 INFO L87 Difference]: Start difference. First operand 13342 states and 18194 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 4 states have internal predecessors, (179), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:31:59,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:02,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:04,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:06,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:09,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:11,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:14,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:18,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:32:18,065 INFO L93 Difference]: Finished difference Result 30003 states and 41515 transitions. [2021-11-17 06:32:18,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 06:32:18,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 4 states have internal predecessors, (179), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 453 [2021-11-17 06:32:18,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:32:18,145 INFO L225 Difference]: With dead ends: 30003 [2021-11-17 06:32:18,145 INFO L226 Difference]: Without dead ends: 16682 [2021-11-17 06:32:18,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 06:32:18,188 INFO L933 BasicCegarLoop]: 3579 mSDtfsCounter, 2507 mSDsluCounter, 10050 mSDsCounter, 0 mSdLazyCounter, 5065 mSolverCounterSat, 1698 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2753 SdHoareTripleChecker+Valid, 13629 SdHoareTripleChecker+Invalid, 6769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1698 IncrementalHoareTripleChecker+Valid, 5065 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-11-17 06:32:18,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2753 Valid, 13629 Invalid, 6769 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1698 Valid, 5065 Invalid, 6 Unknown, 0 Unchecked, 20.4s Time] [2021-11-17 06:32:18,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16682 states. [2021-11-17 06:32:18,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16682 to 15390. [2021-11-17 06:32:18,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15390 states, 10675 states have (on average 1.2623887587822014) internal successors, (13476), 10845 states have internal predecessors, (13476), 3752 states have call successors, (3752), 958 states have call predecessors, (3752), 962 states have return successors, (3759), 3702 states have call predecessors, (3759), 3752 states have call successors, (3759) [2021-11-17 06:32:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15390 states to 15390 states and 20987 transitions. [2021-11-17 06:32:18,778 INFO L78 Accepts]: Start accepts. Automaton has 15390 states and 20987 transitions. Word has length 453 [2021-11-17 06:32:18,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:32:18,779 INFO L470 AbstractCegarLoop]: Abstraction has 15390 states and 20987 transitions. [2021-11-17 06:32:18,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 4 states have internal predecessors, (179), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:32:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 15390 states and 20987 transitions. [2021-11-17 06:32:18,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-11-17 06:32:18,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:32:18,789 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:32:18,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 06:32:18,789 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:32:18,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:32:18,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1870768946, now seen corresponding path program 1 times [2021-11-17 06:32:18,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:32:18,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718705891] [2021-11-17 06:32:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:32:18,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:32:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:32:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:32:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:32:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:32:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:32:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:32:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:32:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:32:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:32:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:32:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:32:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:32:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:32:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:32:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:32:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:32:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:32:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:32:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:32:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:32:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:32:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:32:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:32:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:32:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:32:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:32:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:32:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:32:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:32:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:32:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:32:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:32:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:32:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-17 06:32:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 06:32:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-11-17 06:32:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 06:32:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-17 06:32:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:32:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:32:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:32:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 06:32:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-17 06:32:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 1093 trivial. 0 not checked. [2021-11-17 06:32:19,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:32:19,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718705891] [2021-11-17 06:32:19,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718705891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:32:19,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:32:19,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 06:32:19,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11909332] [2021-11-17 06:32:19,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:32:19,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 06:32:19,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:32:19,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 06:32:19,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 06:32:19,396 INFO L87 Difference]: Start difference. First operand 15390 states and 20987 transitions. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:32:24,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:26,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:29,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:34,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:36,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:32:39,916 INFO L93 Difference]: Finished difference Result 33323 states and 46075 transitions. [2021-11-17 06:32:39,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 06:32:39,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) Word has length 454 [2021-11-17 06:32:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:32:39,982 INFO L225 Difference]: With dead ends: 33323 [2021-11-17 06:32:39,982 INFO L226 Difference]: Without dead ends: 17954 [2021-11-17 06:32:40,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 06:32:40,033 INFO L933 BasicCegarLoop]: 3485 mSDtfsCounter, 2330 mSDsluCounter, 9934 mSDsCounter, 0 mSdLazyCounter, 4923 mSolverCounterSat, 1607 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 13419 SdHoareTripleChecker+Invalid, 6535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1607 IncrementalHoareTripleChecker+Valid, 4923 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2021-11-17 06:32:40,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2539 Valid, 13419 Invalid, 6535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1607 Valid, 4923 Invalid, 5 Unknown, 0 Unchecked, 20.0s Time] [2021-11-17 06:32:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17954 states. [2021-11-17 06:32:40,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17954 to 16579. [2021-11-17 06:32:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16579 states, 11520 states have (on average 1.2625) internal successors, (14544), 11703 states have internal predecessors, (14544), 4024 states have call successors, (4024), 1030 states have call predecessors, (4024), 1034 states have return successors, (4031), 3970 states have call predecessors, (4031), 4024 states have call successors, (4031) [2021-11-17 06:32:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16579 states to 16579 states and 22599 transitions. [2021-11-17 06:32:40,726 INFO L78 Accepts]: Start accepts. Automaton has 16579 states and 22599 transitions. Word has length 454 [2021-11-17 06:32:40,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:32:40,727 INFO L470 AbstractCegarLoop]: Abstraction has 16579 states and 22599 transitions. [2021-11-17 06:32:40,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (45), 4 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:32:40,727 INFO L276 IsEmpty]: Start isEmpty. Operand 16579 states and 22599 transitions. [2021-11-17 06:32:40,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-11-17 06:32:40,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:32:40,739 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:32:40,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 06:32:40,740 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:32:40,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:32:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1388409240, now seen corresponding path program 1 times [2021-11-17 06:32:40,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:32:40,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108313027] [2021-11-17 06:32:40,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:32:40,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:32:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:32:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:32:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:32:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:32:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:32:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:32:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:32:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:32:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:32:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:32:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:32:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:32:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:32:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:32:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:32:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:32:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:40,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:32:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:32:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:32:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:32:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:32:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:32:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:32:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:32:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:32:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:32:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:32:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:32:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:32:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:32:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:32:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:32:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:32:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:32:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-17 06:32:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 06:32:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-11-17 06:32:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-11-17 06:32:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-11-17 06:32:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:32:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:32:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:32:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-11-17 06:32:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:32:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2021-11-17 06:32:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:32:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1188 trivial. 0 not checked. [2021-11-17 06:32:41,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:32:41,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108313027] [2021-11-17 06:32:41,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108313027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:32:41,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:32:41,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:32:41,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164798951] [2021-11-17 06:32:41,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:32:41,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:32:41,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:32:41,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:32:41,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:32:41,254 INFO L87 Difference]: Start difference. First operand 16579 states and 22599 transitions. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (51), 4 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:32:42,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:44,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:47,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:32:50,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:52,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:54,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:56,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:32:59,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:33:02,949 INFO L93 Difference]: Finished difference Result 36374 states and 50261 transitions. [2021-11-17 06:33:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:33:02,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (51), 4 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 469 [2021-11-17 06:33:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:33:03,022 INFO L225 Difference]: With dead ends: 36374 [2021-11-17 06:33:03,022 INFO L226 Difference]: Without dead ends: 19816 [2021-11-17 06:33:03,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:33:03,056 INFO L933 BasicCegarLoop]: 3651 mSDtfsCounter, 2494 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 1688 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2740 SdHoareTripleChecker+Valid, 8191 SdHoareTripleChecker+Invalid, 4396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1688 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2021-11-17 06:33:03,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2740 Valid, 8191 Invalid, 4396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1688 Valid, 2702 Invalid, 6 Unknown, 0 Unchecked, 21.0s Time] [2021-11-17 06:33:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19816 states. [2021-11-17 06:33:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19816 to 18319. [2021-11-17 06:33:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18319 states, 12716 states have (on average 1.2621107266435987) internal successors, (16049), 12922 states have internal predecessors, (16049), 4450 states have call successors, (4450), 1148 states have call predecessors, (4450), 1152 states have return successors, (4457), 4389 states have call predecessors, (4457), 4450 states have call successors, (4457) [2021-11-17 06:33:03,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18319 states to 18319 states and 24956 transitions. [2021-11-17 06:33:03,735 INFO L78 Accepts]: Start accepts. Automaton has 18319 states and 24956 transitions. Word has length 469 [2021-11-17 06:33:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:33:03,736 INFO L470 AbstractCegarLoop]: Abstraction has 18319 states and 24956 transitions. [2021-11-17 06:33:03,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (51), 4 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:33:03,737 INFO L276 IsEmpty]: Start isEmpty. Operand 18319 states and 24956 transitions. [2021-11-17 06:33:03,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2021-11-17 06:33:03,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:33:03,747 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:33:03,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 06:33:03,747 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:33:03,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:33:03,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2116472162, now seen corresponding path program 1 times [2021-11-17 06:33:03,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:33:03,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114476632] [2021-11-17 06:33:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:33:03,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:33:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:33:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:33:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:33:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:33:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:33:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:33:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:33:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:33:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:33:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:33:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:33:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:33:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:33:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:33:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:33:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:33:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:33:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:33:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:33:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:33:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:33:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:33:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:33:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:33:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:33:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:33:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:33:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:33:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:33:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:33:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:33:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:33:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:33:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:33:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:33:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:33:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:33:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:33:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:33:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 06:33:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 06:33:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 06:33:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-11-17 06:33:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:33:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:33:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-17 06:33:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2021-11-17 06:33:04,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:33:04,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114476632] [2021-11-17 06:33:04,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114476632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:33:04,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:33:04,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 06:33:04,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714666230] [2021-11-17 06:33:04,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:33:04,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 06:33:04,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:33:04,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 06:33:04,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:33:04,553 INFO L87 Difference]: Start difference. First operand 18319 states and 24956 transitions. Second operand has 9 states, 8 states have (on average 20.5) internal successors, (164), 5 states have internal predecessors, (164), 4 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-17 06:33:06,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:08,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:11,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:33:13,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:33:16,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:20,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:33:20,053 INFO L93 Difference]: Finished difference Result 38780 states and 54143 transitions. [2021-11-17 06:33:20,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 06:33:20,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 20.5) internal successors, (164), 5 states have internal predecessors, (164), 4 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) Word has length 466 [2021-11-17 06:33:20,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:33:20,139 INFO L225 Difference]: With dead ends: 38780 [2021-11-17 06:33:20,140 INFO L226 Difference]: Without dead ends: 20482 [2021-11-17 06:33:20,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-17 06:33:20,206 INFO L933 BasicCegarLoop]: 2195 mSDtfsCounter, 1246 mSDsluCounter, 5369 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 1212 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 7564 SdHoareTripleChecker+Invalid, 3796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1212 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-17 06:33:20,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1379 Valid, 7564 Invalid, 3796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1212 Valid, 2579 Invalid, 5 Unknown, 0 Unchecked, 14.9s Time] [2021-11-17 06:33:20,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20482 states. [2021-11-17 06:33:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20482 to 18655. [2021-11-17 06:33:20,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18655 states, 12876 states have (on average 1.2625815470643056) internal successors, (16257), 13082 states have internal predecessors, (16257), 4626 states have call successors, (4626), 1148 states have call predecessors, (4626), 1152 states have return successors, (4633), 4565 states have call predecessors, (4633), 4626 states have call successors, (4633) [2021-11-17 06:33:20,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18655 states to 18655 states and 25516 transitions. [2021-11-17 06:33:20,986 INFO L78 Accepts]: Start accepts. Automaton has 18655 states and 25516 transitions. Word has length 466 [2021-11-17 06:33:20,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:33:20,986 INFO L470 AbstractCegarLoop]: Abstraction has 18655 states and 25516 transitions. [2021-11-17 06:33:20,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 20.5) internal successors, (164), 5 states have internal predecessors, (164), 4 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-17 06:33:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 18655 states and 25516 transitions. [2021-11-17 06:33:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2021-11-17 06:33:20,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:33:20,999 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:33:20,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 06:33:20,999 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:33:21,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:33:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash -239408932, now seen corresponding path program 1 times [2021-11-17 06:33:21,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:33:21,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434143797] [2021-11-17 06:33:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:33:21,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:33:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:33:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:33:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:33:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:33:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:33:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:33:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:33:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:33:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:33:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:33:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:33:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:33:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:33:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:33:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:33:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:33:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:33:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:33:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:33:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:33:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:33:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:33:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:33:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:33:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:33:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:33:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:33:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:33:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:33:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:33:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:33:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:33:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:33:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:33:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:33:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:33:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:33:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:33:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:33:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 06:33:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 06:33:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 06:33:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-11-17 06:33:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:33:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:33:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-17 06:33:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2021-11-17 06:33:21,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:33:21,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434143797] [2021-11-17 06:33:21,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434143797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:33:21,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:33:21,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 06:33:21,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323302120] [2021-11-17 06:33:21,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:33:21,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 06:33:21,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:33:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 06:33:21,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 06:33:21,671 INFO L87 Difference]: Start difference. First operand 18655 states and 25516 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-17 06:33:25,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:33:28,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:33:31,125 INFO L93 Difference]: Finished difference Result 38972 states and 54281 transitions. [2021-11-17 06:33:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:33:31,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 466 [2021-11-17 06:33:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:33:31,195 INFO L225 Difference]: With dead ends: 38972 [2021-11-17 06:33:31,195 INFO L226 Difference]: Without dead ends: 20338 [2021-11-17 06:33:31,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 06:33:31,247 INFO L933 BasicCegarLoop]: 2197 mSDtfsCounter, 1693 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 1745 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 5731 SdHoareTripleChecker+Invalid, 3580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1745 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-17 06:33:31,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1830 Valid, 5731 Invalid, 3580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1745 Valid, 1833 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-11-17 06:33:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20338 states. [2021-11-17 06:33:31,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20338 to 18639. [2021-11-17 06:33:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18639 states, 12876 states have (on average 1.2625815470643056) internal successors, (16257), 13066 states have internal predecessors, (16257), 4610 states have call successors, (4610), 1148 states have call predecessors, (4610), 1152 states have return successors, (4617), 4549 states have call predecessors, (4617), 4610 states have call successors, (4617) [2021-11-17 06:33:31,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18639 states to 18639 states and 25484 transitions. [2021-11-17 06:33:31,918 INFO L78 Accepts]: Start accepts. Automaton has 18639 states and 25484 transitions. Word has length 466 [2021-11-17 06:33:31,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:33:31,919 INFO L470 AbstractCegarLoop]: Abstraction has 18639 states and 25484 transitions. [2021-11-17 06:33:31,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 3 states have internal predecessors, (164), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-17 06:33:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 18639 states and 25484 transitions. [2021-11-17 06:33:31,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2021-11-17 06:33:31,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:33:31,931 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:33:31,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 06:33:31,931 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:33:31,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:33:31,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1489199687, now seen corresponding path program 1 times [2021-11-17 06:33:31,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:33:31,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289302640] [2021-11-17 06:33:31,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:33:31,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:33:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:33:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:33:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:33:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:33:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:33:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:33:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:33:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:33:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:33:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:33:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:33:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:33:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:33:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:33:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:33:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:33:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:33:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:33:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:33:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:33:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:33:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:33:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:33:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:33:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:33:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:33:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:33:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:33:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:33:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:33:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:33:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:33:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:33:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:33:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:33:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:33:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:33:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:33:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:33:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 06:33:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 06:33:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 06:33:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-11-17 06:33:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:33:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:33:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-17 06:33:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:32,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:33:32,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:33:32,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289302640] [2021-11-17 06:33:32,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289302640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:33:32,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:33:32,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 06:33:32,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741012150] [2021-11-17 06:33:32,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:33:32,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 06:33:32,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:33:32,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 06:33:32,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 06:33:32,419 INFO L87 Difference]: Start difference. First operand 18639 states and 25484 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 4 states have internal predecessors, (162), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-17 06:33:34,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:37,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:33:40,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:43,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:44,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:33:44,752 INFO L93 Difference]: Finished difference Result 39004 states and 54180 transitions. [2021-11-17 06:33:44,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 06:33:44,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 4 states have internal predecessors, (162), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 466 [2021-11-17 06:33:44,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:33:44,850 INFO L225 Difference]: With dead ends: 39004 [2021-11-17 06:33:44,850 INFO L226 Difference]: Without dead ends: 20386 [2021-11-17 06:33:44,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 06:33:44,895 INFO L933 BasicCegarLoop]: 2160 mSDtfsCounter, 1239 mSDsluCounter, 5298 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 1198 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 7458 SdHoareTripleChecker+Invalid, 3732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1198 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-11-17 06:33:44,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1361 Valid, 7458 Invalid, 3732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1198 Valid, 2531 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2021-11-17 06:33:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20386 states. [2021-11-17 06:33:45,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20386 to 18895. [2021-11-17 06:33:45,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18895 states, 13036 states have (on average 1.261813439705431) internal successors, (16449), 13226 states have internal predecessors, (16449), 4690 states have call successors, (4690), 1164 states have call predecessors, (4690), 1168 states have return successors, (4711), 4629 states have call predecessors, (4711), 4690 states have call successors, (4711) [2021-11-17 06:33:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18895 states to 18895 states and 25850 transitions. [2021-11-17 06:33:45,439 INFO L78 Accepts]: Start accepts. Automaton has 18895 states and 25850 transitions. Word has length 466 [2021-11-17 06:33:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:33:45,439 INFO L470 AbstractCegarLoop]: Abstraction has 18895 states and 25850 transitions. [2021-11-17 06:33:45,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 4 states have internal predecessors, (162), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-17 06:33:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 18895 states and 25850 transitions. [2021-11-17 06:33:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2021-11-17 06:33:45,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:33:45,449 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:33:45,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 06:33:45,450 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:33:45,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:33:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1267280161, now seen corresponding path program 1 times [2021-11-17 06:33:45,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:33:45,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829821794] [2021-11-17 06:33:45,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:33:45,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:33:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:33:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:33:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:33:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:33:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:33:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:33:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:33:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:33:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:33:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:33:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:33:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:33:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:33:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:33:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:33:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:33:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:33:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:33:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:33:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:33:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:33:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:33:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:33:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:33:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:33:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:33:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:33:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:33:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:33:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:33:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:33:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:33:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:33:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:33:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:33:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:33:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:33:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:33:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:33:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:33:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:33:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 06:33:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-17 06:33:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 06:33:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 06:33:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-11-17 06:33:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:33:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2021-11-17 06:33:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:33:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:33:45,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:33:45,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829821794] [2021-11-17 06:33:45,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829821794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:33:45,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:33:45,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 06:33:45,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635484932] [2021-11-17 06:33:45,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:33:45,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 06:33:45,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:33:45,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 06:33:45,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:33:45,982 INFO L87 Difference]: Start difference. First operand 18895 states and 25850 transitions. Second operand has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-17 06:33:49,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:33:52,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:54,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:33:59,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:33:59,398 INFO L93 Difference]: Finished difference Result 39932 states and 55665 transitions. [2021-11-17 06:33:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 06:33:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) Word has length 467 [2021-11-17 06:33:59,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:33:59,509 INFO L225 Difference]: With dead ends: 39932 [2021-11-17 06:33:59,509 INFO L226 Difference]: Without dead ends: 21058 [2021-11-17 06:33:59,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-17 06:33:59,576 INFO L933 BasicCegarLoop]: 2222 mSDtfsCounter, 1224 mSDsluCounter, 7171 mSDsCounter, 0 mSdLazyCounter, 3296 mSolverCounterSat, 1208 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 9393 SdHoareTripleChecker+Invalid, 4507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1208 IncrementalHoareTripleChecker+Valid, 3296 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-17 06:33:59,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1359 Valid, 9393 Invalid, 4507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1208 Valid, 3296 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2021-11-17 06:33:59,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21058 states. [2021-11-17 06:34:00,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21058 to 18911. [2021-11-17 06:34:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18911 states, 13052 states have (on average 1.2614924915721728) internal successors, (16465), 13242 states have internal predecessors, (16465), 4690 states have call successors, (4690), 1164 states have call predecessors, (4690), 1168 states have return successors, (4711), 4629 states have call predecessors, (4711), 4690 states have call successors, (4711) [2021-11-17 06:34:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18911 states to 18911 states and 25866 transitions. [2021-11-17 06:34:00,268 INFO L78 Accepts]: Start accepts. Automaton has 18911 states and 25866 transitions. Word has length 467 [2021-11-17 06:34:00,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:34:00,269 INFO L470 AbstractCegarLoop]: Abstraction has 18911 states and 25866 transitions. [2021-11-17 06:34:00,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (55), 5 states have call predecessors, (55), 2 states have return successors, (48), 4 states have call predecessors, (48), 3 states have call successors, (48) [2021-11-17 06:34:00,269 INFO L276 IsEmpty]: Start isEmpty. Operand 18911 states and 25866 transitions. [2021-11-17 06:34:00,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-11-17 06:34:00,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:34:00,280 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:34:00,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 06:34:00,280 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:34:00,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:34:00,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1135628807, now seen corresponding path program 1 times [2021-11-17 06:34:00,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:34:00,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945994598] [2021-11-17 06:34:00,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:34:00,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:34:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:34:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:34:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:34:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:34:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:34:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:34:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:34:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:34:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:34:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:34:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:34:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:34:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:34:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:34:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:34:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:34:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:34:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:34:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:34:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:34:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:34:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:34:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:34:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:34:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:34:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:34:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:34:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-17 06:34:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 06:34:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-11-17 06:34:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-11-17 06:34:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-11-17 06:34:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-11-17 06:34:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:34:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 06:34:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2021-11-17 06:34:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1267 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2021-11-17 06:34:00,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:34:00,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945994598] [2021-11-17 06:34:00,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945994598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:34:00,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:34:00,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:34:00,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557267081] [2021-11-17 06:34:00,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:34:00,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:34:00,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:34:00,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:34:00,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:34:00,706 INFO L87 Difference]: Start difference. First operand 18911 states and 25866 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (51), 4 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:34:02,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:06,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:34:09,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:34:15,142 INFO L93 Difference]: Finished difference Result 40623 states and 56292 transitions. [2021-11-17 06:34:15,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 06:34:15,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (51), 4 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 479 [2021-11-17 06:34:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:34:15,245 INFO L225 Difference]: With dead ends: 40623 [2021-11-17 06:34:15,245 INFO L226 Difference]: Without dead ends: 21733 [2021-11-17 06:34:15,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 06:34:15,317 INFO L933 BasicCegarLoop]: 3489 mSDtfsCounter, 2344 mSDsluCounter, 4435 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 1609 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 7924 SdHoareTripleChecker+Invalid, 4222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1609 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-17 06:34:15,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2554 Valid, 7924 Invalid, 4222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1609 Valid, 2610 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2021-11-17 06:34:15,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21733 states. [2021-11-17 06:34:16,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21733 to 20154. [2021-11-17 06:34:16,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20154 states, 13932 states have (on average 1.2616279069767442) internal successors, (17577), 14134 states have internal predecessors, (17577), 4979 states have call successors, (4979), 1238 states have call predecessors, (4979), 1242 states have return successors, (5000), 4914 states have call predecessors, (5000), 4979 states have call successors, (5000) [2021-11-17 06:34:16,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20154 states to 20154 states and 27556 transitions. [2021-11-17 06:34:16,113 INFO L78 Accepts]: Start accepts. Automaton has 20154 states and 27556 transitions. Word has length 479 [2021-11-17 06:34:16,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:34:16,114 INFO L470 AbstractCegarLoop]: Abstraction has 20154 states and 27556 transitions. [2021-11-17 06:34:16,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (51), 4 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-17 06:34:16,114 INFO L276 IsEmpty]: Start isEmpty. Operand 20154 states and 27556 transitions. [2021-11-17 06:34:16,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-17 06:34:16,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:34:16,123 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:34:16,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 06:34:16,123 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:34:16,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:34:16,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1521809214, now seen corresponding path program 1 times [2021-11-17 06:34:16,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:34:16,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71018642] [2021-11-17 06:34:16,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:34:16,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:34:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:34:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:34:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:34:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:34:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:34:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:34:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:34:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:34:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:34:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:34:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:34:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:34:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:34:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:34:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:34:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:34:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:34:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:34:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:34:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:34:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:34:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:34:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:34:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:34:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:34:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:34:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:34:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:34:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:34:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:34:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:34:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:34:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:34:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:34:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:34:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:34:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:34:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:34:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:34:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:34:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:34:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:16,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:34:16,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:34:16,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71018642] [2021-11-17 06:34:16,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71018642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:34:16,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:34:16,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:34:16,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565228829] [2021-11-17 06:34:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:34:16,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:34:16,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:34:16,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:34:16,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:34:16,692 INFO L87 Difference]: Start difference. First operand 20154 states and 27556 transitions. Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:34:18,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:20,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:23,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:34:26,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:34:32,087 INFO L93 Difference]: Finished difference Result 41861 states and 58123 transitions. [2021-11-17 06:34:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:34:32,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 473 [2021-11-17 06:34:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:34:32,186 INFO L225 Difference]: With dead ends: 41861 [2021-11-17 06:34:32,186 INFO L226 Difference]: Without dead ends: 21728 [2021-11-17 06:34:32,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:34:32,256 INFO L933 BasicCegarLoop]: 2168 mSDtfsCounter, 2569 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 3254 mSolverCounterSat, 1044 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2875 SdHoareTripleChecker+Valid, 5681 SdHoareTripleChecker+Invalid, 4302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 3254 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-11-17 06:34:32,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2875 Valid, 5681 Invalid, 4302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1044 Valid, 3254 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2021-11-17 06:34:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21728 states. [2021-11-17 06:34:32,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21728 to 20154. [2021-11-17 06:34:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20154 states, 13932 states have (on average 1.2604794717197818) internal successors, (17561), 14134 states have internal predecessors, (17561), 4979 states have call successors, (4979), 1238 states have call predecessors, (4979), 1242 states have return successors, (5000), 4914 states have call predecessors, (5000), 4979 states have call successors, (5000) [2021-11-17 06:34:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20154 states to 20154 states and 27540 transitions. [2021-11-17 06:34:32,967 INFO L78 Accepts]: Start accepts. Automaton has 20154 states and 27540 transitions. Word has length 473 [2021-11-17 06:34:32,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:34:32,968 INFO L470 AbstractCegarLoop]: Abstraction has 20154 states and 27540 transitions. [2021-11-17 06:34:32,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:34:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand 20154 states and 27540 transitions. [2021-11-17 06:34:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-11-17 06:34:32,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:34:32,976 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:34:32,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 06:34:32,976 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:34:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:34:32,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1999901231, now seen corresponding path program 1 times [2021-11-17 06:34:32,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:34:32,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949071747] [2021-11-17 06:34:32,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:34:32,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:34:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:34:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:34:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:34:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:34:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:34:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:34:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:34:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:34:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:34:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:34:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:34:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:34:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:34:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:34:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:34:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:34:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:34:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:34:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:34:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:34:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:34:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:34:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:34:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:34:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:34:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:34:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:34:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:34:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:34:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:34:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:34:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:34:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:34:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:34:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:34:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:34:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:34:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:34:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:34:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:34:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:34:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:34:33,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:34:33,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949071747] [2021-11-17 06:34:33,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949071747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:34:33,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:34:33,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:34:33,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037459751] [2021-11-17 06:34:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:34:33,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:34:33,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:34:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:34:33,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:34:33,650 INFO L87 Difference]: Start difference. First operand 20154 states and 27540 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 5 states have internal predecessors, (168), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:34:35,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:38,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:34:41,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:44,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:46,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:34:46,621 INFO L93 Difference]: Finished difference Result 41861 states and 58091 transitions. [2021-11-17 06:34:46,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:34:46,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 5 states have internal predecessors, (168), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 474 [2021-11-17 06:34:46,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:34:46,704 INFO L225 Difference]: With dead ends: 41861 [2021-11-17 06:34:46,705 INFO L226 Difference]: Without dead ends: 21728 [2021-11-17 06:34:46,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:34:46,760 INFO L933 BasicCegarLoop]: 2156 mSDtfsCounter, 3598 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 2215 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3903 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 4830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2215 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-17 06:34:46,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3903 Valid, 4884 Invalid, 4830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2215 Valid, 2612 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2021-11-17 06:34:46,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21728 states. [2021-11-17 06:34:47,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21728 to 20154. [2021-11-17 06:34:47,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20154 states, 13932 states have (on average 1.2593310364628194) internal successors, (17545), 14134 states have internal predecessors, (17545), 4979 states have call successors, (4979), 1238 states have call predecessors, (4979), 1242 states have return successors, (5000), 4914 states have call predecessors, (5000), 4979 states have call successors, (5000) [2021-11-17 06:34:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20154 states to 20154 states and 27524 transitions. [2021-11-17 06:34:47,443 INFO L78 Accepts]: Start accepts. Automaton has 20154 states and 27524 transitions. Word has length 474 [2021-11-17 06:34:47,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:34:47,444 INFO L470 AbstractCegarLoop]: Abstraction has 20154 states and 27524 transitions. [2021-11-17 06:34:47,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 5 states have internal predecessors, (168), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:34:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 20154 states and 27524 transitions. [2021-11-17 06:34:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-17 06:34:47,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:34:47,453 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:34:47,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 06:34:47,454 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:34:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:34:47,454 INFO L85 PathProgramCache]: Analyzing trace with hash -381708066, now seen corresponding path program 1 times [2021-11-17 06:34:47,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:34:47,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429353842] [2021-11-17 06:34:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:34:47,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:34:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:34:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:34:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:34:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:34:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:34:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:34:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:34:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:34:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:34:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:34:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:34:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:34:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:34:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:34:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:34:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:34:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:34:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:34:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:34:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:34:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:34:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:34:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:34:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:34:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:34:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:34:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:34:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:34:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:34:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:34:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:34:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:34:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:34:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:34:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:34:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:34:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:34:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:34:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:34:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:34:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:34:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:47,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:34:47,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:34:47,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429353842] [2021-11-17 06:34:47,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429353842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:34:47,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:34:47,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:34:47,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498013781] [2021-11-17 06:34:47,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:34:47,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:34:47,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:34:47,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:34:47,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:34:47,934 INFO L87 Difference]: Start difference. First operand 20154 states and 27524 transitions. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 5 states have internal predecessors, (169), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:34:51,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:34:54,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:34:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:34:58,269 INFO L93 Difference]: Finished difference Result 41861 states and 58059 transitions. [2021-11-17 06:34:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:34:58,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 5 states have internal predecessors, (169), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 475 [2021-11-17 06:34:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:34:58,348 INFO L225 Difference]: With dead ends: 41861 [2021-11-17 06:34:58,348 INFO L226 Difference]: Without dead ends: 21728 [2021-11-17 06:34:58,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:34:58,406 INFO L933 BasicCegarLoop]: 2165 mSDtfsCounter, 3588 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 2617 mSolverCounterSat, 2207 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3891 SdHoareTripleChecker+Valid, 4908 SdHoareTripleChecker+Invalid, 4826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2207 IncrementalHoareTripleChecker+Valid, 2617 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-17 06:34:58,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3891 Valid, 4908 Invalid, 4826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2207 Valid, 2617 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2021-11-17 06:34:58,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21728 states. [2021-11-17 06:34:59,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21728 to 20154. [2021-11-17 06:34:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20154 states, 13932 states have (on average 1.258182601205857) internal successors, (17529), 14134 states have internal predecessors, (17529), 4979 states have call successors, (4979), 1238 states have call predecessors, (4979), 1242 states have return successors, (5000), 4914 states have call predecessors, (5000), 4979 states have call successors, (5000) [2021-11-17 06:34:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20154 states to 20154 states and 27508 transitions. [2021-11-17 06:34:59,143 INFO L78 Accepts]: Start accepts. Automaton has 20154 states and 27508 transitions. Word has length 475 [2021-11-17 06:34:59,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:34:59,144 INFO L470 AbstractCegarLoop]: Abstraction has 20154 states and 27508 transitions. [2021-11-17 06:34:59,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 5 states have internal predecessors, (169), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:34:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 20154 states and 27508 transitions. [2021-11-17 06:34:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-17 06:34:59,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:34:59,153 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:34:59,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 06:34:59,153 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:34:59,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:34:59,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1082635637, now seen corresponding path program 1 times [2021-11-17 06:34:59,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:34:59,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925819664] [2021-11-17 06:34:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:34:59,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:34:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:34:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:34:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:34:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:34:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:34:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:34:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:34:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:34:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:34:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:34:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:34:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:34:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:34:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:34:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:34:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:34:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:34:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:34:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:34:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:34:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:34:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:34:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:34:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:34:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:34:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:34:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:34:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:34:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:34:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:34:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:34:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:34:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:34:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:34:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:34:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:34:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:34:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:34:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:34:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:34:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:34:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:34:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:34:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:34:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:34:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:34:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:34:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:34:59,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:34:59,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925819664] [2021-11-17 06:34:59,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925819664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:34:59,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:34:59,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:34:59,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117391969] [2021-11-17 06:34:59,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:34:59,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:34:59,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:34:59,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:34:59,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:34:59,756 INFO L87 Difference]: Start difference. First operand 20154 states and 27508 transitions. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:35:01,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:03,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:07,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:35:10,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:12,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:15,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:19,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:35:21,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:35:21,317 INFO L93 Difference]: Finished difference Result 43820 states and 60540 transitions. [2021-11-17 06:35:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 06:35:21,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 476 [2021-11-17 06:35:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:35:21,400 INFO L225 Difference]: With dead ends: 43820 [2021-11-17 06:35:21,400 INFO L226 Difference]: Without dead ends: 23687 [2021-11-17 06:35:21,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-17 06:35:21,453 INFO L933 BasicCegarLoop]: 2298 mSDtfsCounter, 4131 mSDsluCounter, 3716 mSDsCounter, 0 mSdLazyCounter, 3434 mSolverCounterSat, 2115 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4423 SdHoareTripleChecker+Valid, 6014 SdHoareTripleChecker+Invalid, 5555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2115 IncrementalHoareTripleChecker+Valid, 3434 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-11-17 06:35:21,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4423 Valid, 6014 Invalid, 5555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2115 Valid, 3434 Invalid, 6 Unknown, 0 Unchecked, 20.4s Time] [2021-11-17 06:35:21,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23687 states. [2021-11-17 06:35:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23687 to 21977. [2021-11-17 06:35:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.2581813393033516) internal successors, (19108), 15440 states have internal predecessors, (19108), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:35:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29801 transitions. [2021-11-17 06:35:22,273 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29801 transitions. Word has length 476 [2021-11-17 06:35:22,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:35:22,273 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29801 transitions. [2021-11-17 06:35:22,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:35:22,274 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29801 transitions. [2021-11-17 06:35:22,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-11-17 06:35:22,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:35:22,283 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:35:22,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 06:35:22,283 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:35:22,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:35:22,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1222037254, now seen corresponding path program 1 times [2021-11-17 06:35:22,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:35:22,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184158004] [2021-11-17 06:35:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:35:22,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:35:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:35:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:35:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:35:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:35:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:35:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:35:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:35:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:35:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:35:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:35:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:35:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:35:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:35:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:35:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:35:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:35:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:35:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:35:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:35:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:35:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:35:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:35:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:35:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:35:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:35:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:35:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:35:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:35:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:35:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:35:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:35:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:35:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:35:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:35:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:35:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:35:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:35:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:35:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:35:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:35:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:35:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:35:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:35:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:35:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:35:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:35:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:35:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:35:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:35:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:35:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:22,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:35:22,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:35:22,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184158004] [2021-11-17 06:35:22,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184158004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:35:22,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:35:22,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:35:22,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276460979] [2021-11-17 06:35:22,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:35:22,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:35:22,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:35:22,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:35:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:35:22,867 INFO L87 Difference]: Start difference. First operand 21977 states and 29801 transitions. Second operand has 8 states, 8 states have (on average 21.375) internal successors, (171), 5 states have internal predecessors, (171), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:35:24,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:26,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:29,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:35:32,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:35,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:37,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:35:37,716 INFO L93 Difference]: Finished difference Result 45626 states and 62800 transitions. [2021-11-17 06:35:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:35:37,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.375) internal successors, (171), 5 states have internal predecessors, (171), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 477 [2021-11-17 06:35:37,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:35:37,797 INFO L225 Difference]: With dead ends: 45626 [2021-11-17 06:35:37,797 INFO L226 Difference]: Without dead ends: 23670 [2021-11-17 06:35:37,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:35:37,857 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 3579 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 2611 mSolverCounterSat, 2202 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3886 SdHoareTripleChecker+Valid, 4902 SdHoareTripleChecker+Invalid, 4816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2202 IncrementalHoareTripleChecker+Valid, 2611 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2021-11-17 06:35:37,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3886 Valid, 4902 Invalid, 4816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2202 Valid, 2611 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2021-11-17 06:35:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23670 states. [2021-11-17 06:35:38,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23670 to 21977. [2021-11-17 06:35:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.257127806676763) internal successors, (19092), 15440 states have internal predecessors, (19092), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:35:38,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29785 transitions. [2021-11-17 06:35:38,736 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29785 transitions. Word has length 477 [2021-11-17 06:35:38,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:35:38,736 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29785 transitions. [2021-11-17 06:35:38,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.375) internal successors, (171), 5 states have internal predecessors, (171), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:35:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29785 transitions. [2021-11-17 06:35:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2021-11-17 06:35:38,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:35:38,743 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:35:38,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 06:35:38,744 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:35:38,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:35:38,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1134003481, now seen corresponding path program 1 times [2021-11-17 06:35:38,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:35:38,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624613290] [2021-11-17 06:35:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:35:38,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:35:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:35:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:35:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:35:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:35:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:35:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:35:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:35:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:38,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:35:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:35:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:35:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:35:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:35:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:35:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:35:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:35:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:35:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:35:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:35:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:35:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:35:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:35:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:35:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:35:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:35:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:35:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:35:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:35:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:35:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:35:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:35:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:35:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:35:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:35:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:35:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:35:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:35:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:35:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:35:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:35:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:35:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:35:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:35:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:35:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:35:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:35:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:35:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:35:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:35:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:35:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:35:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:35:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:35:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:35:39,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:35:39,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624613290] [2021-11-17 06:35:39,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624613290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:35:39,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:35:39,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:35:39,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734427705] [2021-11-17 06:35:39,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:35:39,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:35:39,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:35:39,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:35:39,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:35:39,256 INFO L87 Difference]: Start difference. First operand 21977 states and 29785 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 5 states have internal predecessors, (172), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:35:41,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:43,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:47,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:35:49,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:51,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:53,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:56,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:35:59,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:02,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:36:02,054 INFO L93 Difference]: Finished difference Result 45626 states and 62768 transitions. [2021-11-17 06:36:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:36:02,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 5 states have internal predecessors, (172), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 478 [2021-11-17 06:36:02,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:36:02,235 INFO L225 Difference]: With dead ends: 45626 [2021-11-17 06:36:02,235 INFO L226 Difference]: Without dead ends: 23670 [2021-11-17 06:36:02,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:36:02,285 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 5023 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 3218 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5330 SdHoareTripleChecker+Valid, 4902 SdHoareTripleChecker+Invalid, 5833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3218 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2021-11-17 06:36:02,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5330 Valid, 4902 Invalid, 5833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3218 Valid, 2609 Invalid, 6 Unknown, 0 Unchecked, 21.7s Time] [2021-11-17 06:36:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23670 states. [2021-11-17 06:36:03,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23670 to 21977. [2021-11-17 06:36:03,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.2560742740501745) internal successors, (19076), 15440 states have internal predecessors, (19076), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:36:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29769 transitions. [2021-11-17 06:36:03,136 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29769 transitions. Word has length 478 [2021-11-17 06:36:03,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:36:03,136 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29769 transitions. [2021-11-17 06:36:03,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 5 states have internal predecessors, (172), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:36:03,136 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29769 transitions. [2021-11-17 06:36:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-11-17 06:36:03,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:36:03,143 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:36:03,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 06:36:03,143 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:36:03,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:36:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1709560086, now seen corresponding path program 1 times [2021-11-17 06:36:03,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:36:03,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801747529] [2021-11-17 06:36:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:36:03,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:36:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:36:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:36:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:36:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:36:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:36:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:36:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:36:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:36:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:36:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:36:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:36:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:36:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:36:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:36:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:36:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:36:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:36:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:36:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:36:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:36:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:36:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:36:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:36:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:36:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:36:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:36:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:36:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:36:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:36:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:36:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:36:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:36:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:36:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:36:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:36:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:36:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:36:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:36:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:36:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:36:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:36:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:36:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:36:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:36:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:36:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:36:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:36:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:36:03,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:36:03,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801747529] [2021-11-17 06:36:03,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801747529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:36:03,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:36:03,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:36:03,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089624248] [2021-11-17 06:36:03,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:36:03,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:36:03,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:36:03,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:36:03,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:36:03,735 INFO L87 Difference]: Start difference. First operand 21977 states and 29769 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:36:06,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:09,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:36:12,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:15,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:36:17,139 INFO L93 Difference]: Finished difference Result 45626 states and 62736 transitions. [2021-11-17 06:36:17,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:36:17,142 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 479 [2021-11-17 06:36:17,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:36:17,234 INFO L225 Difference]: With dead ends: 45626 [2021-11-17 06:36:17,234 INFO L226 Difference]: Without dead ends: 23670 [2021-11-17 06:36:17,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:36:17,305 INFO L933 BasicCegarLoop]: 2151 mSDtfsCounter, 4525 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 2657 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 4905 SdHoareTripleChecker+Invalid, 5330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2657 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-17 06:36:17,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4832 Valid, 4905 Invalid, 5330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2657 Valid, 2670 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2021-11-17 06:36:17,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23670 states. [2021-11-17 06:36:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23670 to 21977. [2021-11-17 06:36:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.2550207414235859) internal successors, (19060), 15440 states have internal predecessors, (19060), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:36:18,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29753 transitions. [2021-11-17 06:36:18,316 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29753 transitions. Word has length 479 [2021-11-17 06:36:18,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:36:18,316 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29753 transitions. [2021-11-17 06:36:18,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:36:18,317 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29753 transitions. [2021-11-17 06:36:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-17 06:36:18,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:36:18,323 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:36:18,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 06:36:18,323 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:36:18,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:36:18,323 INFO L85 PathProgramCache]: Analyzing trace with hash -219765949, now seen corresponding path program 1 times [2021-11-17 06:36:18,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:36:18,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576968014] [2021-11-17 06:36:18,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:36:18,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:36:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:36:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:36:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:36:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:36:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:36:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:36:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:36:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:36:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:36:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:36:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:36:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:36:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:36:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:36:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:36:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:36:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:36:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:36:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:36:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:36:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:36:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:36:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:36:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:36:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:36:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:36:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:36:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:36:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:36:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:36:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:36:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:36:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:36:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:36:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:36:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:36:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:36:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:36:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:36:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:36:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:36:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:36:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:36:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:36:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:36:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:36:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:36:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:36:18,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:36:18,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576968014] [2021-11-17 06:36:18,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576968014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:36:18,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:36:18,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:36:18,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269242802] [2021-11-17 06:36:18,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:36:18,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:36:18,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:36:18,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:36:18,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:36:18,806 INFO L87 Difference]: Start difference. First operand 21977 states and 29753 transitions. Second operand has 8 states, 8 states have (on average 21.75) internal successors, (174), 5 states have internal predecessors, (174), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:36:20,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:24,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:36:27,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:36:31,814 INFO L93 Difference]: Finished difference Result 45626 states and 62704 transitions. [2021-11-17 06:36:31,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:36:31,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 5 states have internal predecessors, (174), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 480 [2021-11-17 06:36:31,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:36:31,894 INFO L225 Difference]: With dead ends: 45626 [2021-11-17 06:36:31,894 INFO L226 Difference]: Without dead ends: 23670 [2021-11-17 06:36:31,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:36:31,952 INFO L933 BasicCegarLoop]: 2154 mSDtfsCounter, 4513 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 2655 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4820 SdHoareTripleChecker+Valid, 4913 SdHoareTripleChecker+Invalid, 5326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2655 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-17 06:36:31,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4820 Valid, 4913 Invalid, 5326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2655 Valid, 2668 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2021-11-17 06:36:31,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23670 states. [2021-11-17 06:36:32,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23670 to 21977. [2021-11-17 06:36:32,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.2539672087969975) internal successors, (19044), 15440 states have internal predecessors, (19044), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:36:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29737 transitions. [2021-11-17 06:36:32,922 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29737 transitions. Word has length 480 [2021-11-17 06:36:32,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:36:32,923 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29737 transitions. [2021-11-17 06:36:32,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 5 states have internal predecessors, (174), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:36:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29737 transitions. [2021-11-17 06:36:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-11-17 06:36:32,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:36:32,930 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:36:32,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 06:36:32,930 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:36:32,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:36:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash 215185714, now seen corresponding path program 1 times [2021-11-17 06:36:32,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:36:32,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25325721] [2021-11-17 06:36:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:36:32,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:36:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:36:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:36:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:36:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:36:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:36:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:36:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:36:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:36:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:36:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:36:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:36:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:36:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:36:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:36:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:36:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:36:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:36:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:36:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:36:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:36:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:36:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:36:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:36:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:36:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:36:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:36:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:36:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:36:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:36:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:36:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:36:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:36:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:36:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:36:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:36:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:36:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:36:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:36:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:36:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:36:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:36:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:36:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:36:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:36:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:36:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:36:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:36:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:33,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:36:33,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:36:33,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25325721] [2021-11-17 06:36:33,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25325721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:36:33,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:36:33,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:36:33,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057861211] [2021-11-17 06:36:33,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:36:33,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:36:33,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:36:33,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:36:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:36:33,486 INFO L87 Difference]: Start difference. First operand 21977 states and 29737 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:36:35,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:37,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:40,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:36:43,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:36:47,950 INFO L93 Difference]: Finished difference Result 45626 states and 62672 transitions. [2021-11-17 06:36:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:36:47,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 481 [2021-11-17 06:36:47,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:36:48,041 INFO L225 Difference]: With dead ends: 45626 [2021-11-17 06:36:48,041 INFO L226 Difference]: Without dead ends: 23670 [2021-11-17 06:36:48,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:36:48,105 INFO L933 BasicCegarLoop]: 2160 mSDtfsCounter, 3057 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 1625 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3364 SdHoareTripleChecker+Valid, 4929 SdHoareTripleChecker+Invalid, 4298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1625 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-17 06:36:48,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3364 Valid, 4929 Invalid, 4298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1625 Valid, 2670 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2021-11-17 06:36:48,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23670 states. [2021-11-17 06:36:49,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23670 to 21977. [2021-11-17 06:36:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.252913676170409) internal successors, (19028), 15440 states have internal predecessors, (19028), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:36:49,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29721 transitions. [2021-11-17 06:36:49,110 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29721 transitions. Word has length 481 [2021-11-17 06:36:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:36:49,110 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29721 transitions. [2021-11-17 06:36:49,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:36:49,110 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29721 transitions. [2021-11-17 06:36:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2021-11-17 06:36:49,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:36:49,117 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:36:49,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-17 06:36:49,117 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:36:49,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:36:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash 928301983, now seen corresponding path program 1 times [2021-11-17 06:36:49,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:36:49,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266036865] [2021-11-17 06:36:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:36:49,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:36:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:36:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:36:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:36:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:36:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:36:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:36:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:36:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:36:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:36:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:36:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:36:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:36:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:36:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:36:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:36:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:36:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:36:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:36:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:36:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:36:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:36:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:36:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:36:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:36:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:36:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:36:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:36:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:36:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:36:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:36:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:36:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:36:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:36:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:36:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:36:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:36:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:36:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:36:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:36:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:36:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:36:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:36:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:36:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:36:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:36:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:36:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:36:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:36:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:36:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:36:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:36:49,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:36:49,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266036865] [2021-11-17 06:36:49,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266036865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:36:49,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:36:49,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:36:49,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245355524] [2021-11-17 06:36:49,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:36:49,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:36:49,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:36:49,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:36:49,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:36:49,593 INFO L87 Difference]: Start difference. First operand 21977 states and 29721 transitions. Second operand has 8 states, 8 states have (on average 22.0) internal successors, (176), 5 states have internal predecessors, (176), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:36:51,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:53,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:36:57,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:36:59,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:02,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:04,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:37:04,943 INFO L93 Difference]: Finished difference Result 45626 states and 62640 transitions. [2021-11-17 06:37:04,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:37:04,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 5 states have internal predecessors, (176), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 482 [2021-11-17 06:37:04,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:37:05,025 INFO L225 Difference]: With dead ends: 45626 [2021-11-17 06:37:05,025 INFO L226 Difference]: Without dead ends: 23670 [2021-11-17 06:37:05,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:37:05,092 INFO L933 BasicCegarLoop]: 2146 mSDtfsCounter, 3063 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 1629 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 4911 SdHoareTripleChecker+Invalid, 4288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1629 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-11-17 06:37:05,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3370 Valid, 4911 Invalid, 4288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1629 Valid, 2655 Invalid, 4 Unknown, 0 Unchecked, 14.0s Time] [2021-11-17 06:37:05,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23670 states. [2021-11-17 06:37:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23670 to 21977. [2021-11-17 06:37:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.2518601435438204) internal successors, (19012), 15440 states have internal predecessors, (19012), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:37:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29705 transitions. [2021-11-17 06:37:06,178 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29705 transitions. Word has length 482 [2021-11-17 06:37:06,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:37:06,179 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29705 transitions. [2021-11-17 06:37:06,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 5 states have internal predecessors, (176), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:37:06,179 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29705 transitions. [2021-11-17 06:37:06,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2021-11-17 06:37:06,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:37:06,186 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:37:06,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-17 06:37:06,187 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:37:06,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:37:06,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1674586446, now seen corresponding path program 1 times [2021-11-17 06:37:06,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:37:06,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063525251] [2021-11-17 06:37:06,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:37:06,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:37:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:37:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:37:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:37:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:37:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:37:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:37:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:37:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:37:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:37:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:37:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:37:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:37:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:37:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:37:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:37:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:37:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:37:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:37:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:37:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:37:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:37:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:37:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:37:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:37:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:37:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:37:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:37:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:37:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:37:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:37:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:37:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:37:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:37:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:37:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:37:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:37:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:37:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:37:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:37:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:37:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:37:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:37:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:37:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:37:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:37:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:37:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:37:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:37:06,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:37:06,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063525251] [2021-11-17 06:37:06,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063525251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:37:06,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:37:06,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:37:06,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630281820] [2021-11-17 06:37:06,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:37:06,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:37:06,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:37:06,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:37:06,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:37:06,590 INFO L87 Difference]: Start difference. First operand 21977 states and 29705 transitions. Second operand has 8 states, 8 states have (on average 22.125) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:37:09,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:12,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:37:15,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:20,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:23,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:37:23,043 INFO L93 Difference]: Finished difference Result 45626 states and 62608 transitions. [2021-11-17 06:37:23,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:37:23,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 483 [2021-11-17 06:37:23,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:37:23,132 INFO L225 Difference]: With dead ends: 45626 [2021-11-17 06:37:23,132 INFO L226 Difference]: Without dead ends: 23670 [2021-11-17 06:37:23,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:37:23,193 INFO L933 BasicCegarLoop]: 2152 mSDtfsCounter, 3996 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 3241 mSolverCounterSat, 2072 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4303 SdHoareTripleChecker+Valid, 5655 SdHoareTripleChecker+Invalid, 5316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2072 IncrementalHoareTripleChecker+Valid, 3241 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-17 06:37:23,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4303 Valid, 5655 Invalid, 5316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2072 Valid, 3241 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2021-11-17 06:37:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23670 states. [2021-11-17 06:37:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23670 to 21977. [2021-11-17 06:37:24,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.2508066109172318) internal successors, (18996), 15440 states have internal predecessors, (18996), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:37:24,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29689 transitions. [2021-11-17 06:37:24,256 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29689 transitions. Word has length 483 [2021-11-17 06:37:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:37:24,257 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29689 transitions. [2021-11-17 06:37:24,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:37:24,257 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29689 transitions. [2021-11-17 06:37:24,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-11-17 06:37:24,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:37:24,263 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:37:24,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-17 06:37:24,264 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:37:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:37:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash -845882373, now seen corresponding path program 1 times [2021-11-17 06:37:24,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:37:24,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844944418] [2021-11-17 06:37:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:37:24,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:37:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:37:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:37:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:37:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:37:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:37:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:37:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:37:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:37:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:37:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:37:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:37:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:37:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:37:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:37:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:37:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:37:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:37:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:37:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:37:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:37:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:37:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:37:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:37:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:37:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:37:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:37:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:37:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:37:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:37:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:37:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:37:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:37:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:37:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:37:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:37:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:37:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:37:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:37:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:37:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:37:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:37:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:37:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:37:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:37:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:37:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:37:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:37:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:37:24,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:37:24,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844944418] [2021-11-17 06:37:24,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844944418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:37:24,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:37:24,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:37:24,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61709048] [2021-11-17 06:37:24,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:37:24,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:37:24,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:37:24,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:37:24,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:37:24,611 INFO L87 Difference]: Start difference. First operand 21977 states and 29689 transitions. Second operand has 8 states, 8 states have (on average 22.25) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:37:26,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:30,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:37:33,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:37,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:37:37,876 INFO L93 Difference]: Finished difference Result 45626 states and 62576 transitions. [2021-11-17 06:37:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 06:37:37,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.25) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 484 [2021-11-17 06:37:37,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:37:37,965 INFO L225 Difference]: With dead ends: 45626 [2021-11-17 06:37:37,965 INFO L226 Difference]: Without dead ends: 23670 [2021-11-17 06:37:38,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:37:38,035 INFO L933 BasicCegarLoop]: 2155 mSDtfsCounter, 4491 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 2658 mSolverCounterSat, 2639 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4798 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 5299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2639 IncrementalHoareTripleChecker+Valid, 2658 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-17 06:37:38,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4798 Valid, 4934 Invalid, 5299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2639 Valid, 2658 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2021-11-17 06:37:38,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23670 states. [2021-11-17 06:37:39,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23670 to 21977. [2021-11-17 06:37:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21977 states, 15187 states have (on average 1.2497530782906434) internal successors, (18980), 15440 states have internal predecessors, (18980), 5319 states have call successors, (5319), 1483 states have call predecessors, (5319), 1470 states have return successors, (5374), 5203 states have call predecessors, (5374), 5319 states have call successors, (5374) [2021-11-17 06:37:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21977 states to 21977 states and 29673 transitions. [2021-11-17 06:37:39,227 INFO L78 Accepts]: Start accepts. Automaton has 21977 states and 29673 transitions. Word has length 484 [2021-11-17 06:37:39,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:37:39,227 INFO L470 AbstractCegarLoop]: Abstraction has 21977 states and 29673 transitions. [2021-11-17 06:37:39,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.25) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-17 06:37:39,227 INFO L276 IsEmpty]: Start isEmpty. Operand 21977 states and 29673 transitions. [2021-11-17 06:37:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-11-17 06:37:39,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:37:39,236 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 06:37:39,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-17 06:37:39,236 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:37:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:37:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash -817253222, now seen corresponding path program 1 times [2021-11-17 06:37:39,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:37:39,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871432030] [2021-11-17 06:37:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:37:39,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:37:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:37:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:37:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:37:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:37:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:37:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:37:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:37:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:37:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 06:37:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 06:37:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 06:37:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 06:37:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 06:37:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 06:37:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 06:37:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 06:37:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:37:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:37:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:37:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 06:37:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:37:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:37:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 06:37:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:37:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 06:37:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 06:37:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 06:37:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 06:37:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 06:37:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 06:37:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 06:37:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 06:37:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 06:37:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 06:37:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 06:37:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 06:37:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 06:37:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:37:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 06:37:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 06:37:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 06:37:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:37:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 06:37:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 06:37:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-17 06:37:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 06:37:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 06:37:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:37:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-17 06:37:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:37:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-11-17 06:37:39,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:37:39,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871432030] [2021-11-17 06:37:39,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871432030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:37:39,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:37:39,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 06:37:39,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70107323] [2021-11-17 06:37:39,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:37:39,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 06:37:39,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:37:39,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 06:37:39,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:37:39,731 INFO L87 Difference]: Start difference. First operand 21977 states and 29673 transitions. Second operand has 8 states, 8 states have (on average 22.25) internal successors, (178), 4 states have internal predecessors, (178), 1 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) [2021-11-17 06:37:41,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:44,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:37:47,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 06:37:50,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:54,477 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:37:56,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:37:56,756 INFO L93 Difference]: Finished difference Result 23702 states and 32769 transitions. [2021-11-17 06:37:56,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 06:37:56,759 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.25) internal successors, (178), 4 states have internal predecessors, (178), 1 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) Word has length 484 [2021-11-17 06:37:56,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:37:56,762 INFO L225 Difference]: With dead ends: 23702 [2021-11-17 06:37:56,762 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 06:37:56,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-17 06:37:56,806 INFO L933 BasicCegarLoop]: 2155 mSDtfsCounter, 628 mSDsluCounter, 7803 mSDsCounter, 0 mSdLazyCounter, 3696 mSolverCounterSat, 521 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 9958 SdHoareTripleChecker+Invalid, 4222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 3696 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2021-11-17 06:37:56,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 9958 Invalid, 4222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 3696 Invalid, 5 Unknown, 0 Unchecked, 15.9s Time] [2021-11-17 06:37:56,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 06:37:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 06:37:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 06:37:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 06:37:56,812 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 484 [2021-11-17 06:37:56,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:37:56,813 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 06:37:56,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.25) internal successors, (178), 4 states have internal predecessors, (178), 1 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) [2021-11-17 06:37:56,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 06:37:56,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 06:37:56,815 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 06:37:56,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-17 06:37:56,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15