./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.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 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 14:44:41,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 14:44:41,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 14:44:41,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 14:44:41,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 14:44:41,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 14:44:41,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 14:44:41,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 14:44:41,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 14:44:41,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 14:44:41,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 14:44:41,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 14:44:41,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 14:44:41,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 14:44:41,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 14:44:41,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 14:44:41,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 14:44:41,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 14:44:41,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 14:44:41,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 14:44:41,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 14:44:41,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 14:44:41,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 14:44:41,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 14:44:41,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 14:44:41,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 14:44:41,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 14:44:41,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 14:44:41,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 14:44:41,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 14:44:41,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 14:44:41,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 14:44:41,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 14:44:41,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 14:44:41,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 14:44:41,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 14:44:41,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 14:44:41,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 14:44:41,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 14:44:41,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 14:44:41,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 14:44:41,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 14:44:41,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 14:44:41,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 14:44:41,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 14:44:41,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 14:44:41,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 14:44:41,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 14:44:41,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 14:44:41,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 14:44:41,318 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 14:44:41,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 14:44:41,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 14:44:41,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 14:44:41,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 14:44:41,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 14:44:41,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 14:44:41,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 14:44:41,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 14:44:41,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 14:44:41,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 14:44:41,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 14:44:41,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 14:44:41,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:44:41,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 14:44:41,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 14:44:41,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 14:44:41,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 14:44:41,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 14:44:41,322 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 14:44:41,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 14:44:41,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 14:44:41,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 14:44:41,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2021-12-18 14:44:41,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 14:44:41,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 14:44:41,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 14:44:41,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 14:44:41,527 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 14:44:41,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-12-18 14:44:41,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8416c0faf/9e8f7537994c4a81955598ca9be05d74/FLAGbf55c57e7 [2021-12-18 14:44:42,199 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 14:44:42,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-12-18 14:44:42,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8416c0faf/9e8f7537994c4a81955598ca9be05d74/FLAGbf55c57e7 [2021-12-18 14:44:42,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8416c0faf/9e8f7537994c4a81955598ca9be05d74 [2021-12-18 14:44:42,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 14:44:42,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 14:44:42,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 14:44:42,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 14:44:42,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 14:44:42,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:44:42" (1/1) ... [2021-12-18 14:44:42,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152d3728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:42, skipping insertion in model container [2021-12-18 14:44:42,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:44:42" (1/1) ... [2021-12-18 14:44:42,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 14:44:42,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 14:44:45,446 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-12-18 14:44:45,449 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-12-18 14:44:45,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:44:45,516 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 14:44:45,832 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-12-18 14:44:45,833 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-12-18 14:44:45,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 14:44:46,025 INFO L208 MainTranslator]: Completed translation [2021-12-18 14:44:46,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46 WrapperNode [2021-12-18 14:44:46,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 14:44:46,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 14:44:46,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 14:44:46,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 14:44:46,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,467 INFO L137 Inliner]: procedures = 574, calls = 6348, calls flagged for inlining = 279, calls inlined = 246, statements flattened = 12134 [2021-12-18 14:44:46,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 14:44:46,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 14:44:46,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 14:44:46,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 14:44:46,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 14:44:46,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 14:44:46,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 14:44:46,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 14:44:46,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (1/1) ... [2021-12-18 14:44:46,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 14:44:46,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 14:44:46,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 14:44:46,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 14:44:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 14:44:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 14:44:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 14:44:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 14:44:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 14:44:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 14:44:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-12-18 14:44:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-12-18 14:44:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 14:44:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 14:44:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-12-18 14:44:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-12-18 14:44:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 14:44:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 14:44:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 14:44:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 14:44:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-18 14:44:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-18 14:44:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 14:44:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 14:44:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-12-18 14:44:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-12-18 14:44:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-12-18 14:44:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-12-18 14:44:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-12-18 14:44:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-12-18 14:44:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-12-18 14:44:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-12-18 14:44:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 14:44:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 14:44:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-12-18 14:44:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-12-18 14:44:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-12-18 14:44:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-12-18 14:44:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 14:44:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 14:44:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 14:44:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 14:44:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 14:44:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 14:44:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 14:44:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 14:44:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2021-12-18 14:44:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2021-12-18 14:44:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 14:44:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 14:44:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 14:44:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 14:44:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 14:44:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 14:44:46,818 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 14:44:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-12-18 14:44:46,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-12-18 14:44:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 14:44:46,818 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 14:44:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-12-18 14:44:46,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-12-18 14:44:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 14:44:46,819 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 14:44:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 14:44:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-12-18 14:44:46,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-12-18 14:44:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-12-18 14:44:46,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-12-18 14:44:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 14:44:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 14:44:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-12-18 14:44:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-12-18 14:44:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 14:44:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 14:44:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 14:44:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-12-18 14:44:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-12-18 14:44:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-12-18 14:44:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-12-18 14:44:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 14:44:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-12-18 14:44:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-12-18 14:44:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 14:44:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 14:44:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-18 14:44:46,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-18 14:44:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 14:44:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 14:44:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 14:44:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 14:44:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-18 14:44:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-18 14:44:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 14:44:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 14:44:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 14:44:46,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 14:44:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 14:44:46,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 14:44:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-12-18 14:44:46,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-12-18 14:44:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 14:44:46,823 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 14:44:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 14:44:46,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 14:44:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-12-18 14:44:46,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-12-18 14:44:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-12-18 14:44:46,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-12-18 14:44:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-12-18 14:44:46,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-12-18 14:44:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 14:44:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-18 14:44:46,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-18 14:44:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-18 14:44:46,825 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-18 14:44:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 14:44:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 14:44:46,825 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 14:44:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 14:44:46,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 14:44:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 14:44:46,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 14:44:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 14:44:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:44:46,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 14:44:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-12-18 14:44:46,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-12-18 14:44:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-12-18 14:44:46,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-12-18 14:44:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 14:44:46,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 14:44:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-18 14:44:46,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-18 14:44:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-18 14:44:46,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-18 14:44:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2021-12-18 14:44:46,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2021-12-18 14:44:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-18 14:44:46,827 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-18 14:44:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-12-18 14:44:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-12-18 14:44:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-12-18 14:44:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-12-18 14:44:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-12-18 14:44:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-12-18 14:44:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-18 14:44:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-18 14:44:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 14:44:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 14:44:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 14:44:46,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 14:44:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-12-18 14:44:46,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-12-18 14:44:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-12-18 14:44:46,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-12-18 14:44:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-12-18 14:44:46,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-12-18 14:44:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 14:44:46,829 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 14:44:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 14:44:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 14:44:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2021-12-18 14:44:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2021-12-18 14:44:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 14:44:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 14:44:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-18 14:44:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-18 14:44:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 14:44:46,831 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 14:44:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 14:44:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 14:44:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 14:44:46,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 14:44:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 14:44:46,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 14:44:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 14:44:46,831 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 14:44:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-18 14:44:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-18 14:44:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-12-18 14:44:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-12-18 14:44:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 14:44:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 14:44:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-12-18 14:44:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-12-18 14:44:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-18 14:44:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-18 14:44:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 14:44:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 14:44:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 14:44:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 14:44:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-12-18 14:44:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-12-18 14:44:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2021-12-18 14:44:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2021-12-18 14:44:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-18 14:44:46,834 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-18 14:44:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-18 14:44:46,834 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-18 14:44:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 14:44:46,834 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 14:44:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-18 14:44:46,834 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-18 14:44:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 14:44:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-18 14:44:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-18 14:44:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 14:44:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 14:44:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 14:44:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-12-18 14:44:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-12-18 14:44:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 14:44:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 14:44:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 14:44:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-18 14:44:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-18 14:44:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 14:44:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 14:44:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 14:44:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 14:44:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 14:44:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 14:44:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-12-18 14:44:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-12-18 14:44:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-12-18 14:44:46,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-12-18 14:44:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 14:44:46,837 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 14:44:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-18 14:44:46,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-18 14:44:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 14:44:46,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 14:44:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 14:44:46,838 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 14:44:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-18 14:44:46,838 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-18 14:44:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 14:44:46,838 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 14:44:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-12-18 14:44:46,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-12-18 14:44:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-18 14:44:46,838 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-18 14:44:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 14:44:46,839 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 14:44:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 14:44:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-12-18 14:44:46,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-12-18 14:44:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 14:44:46,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 14:44:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-12-18 14:44:46,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-12-18 14:44:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 14:44:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 14:44:46,840 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-12-18 14:44:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-12-18 14:44:46,840 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 14:44:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 14:44:46,840 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-18 14:44:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-18 14:44:46,840 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-12-18 14:44:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-12-18 14:44:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-12-18 14:44:46,841 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-12-18 14:44:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-18 14:44:46,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-18 14:44:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-12-18 14:44:46,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-12-18 14:44:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-12-18 14:44:46,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-12-18 14:44:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-12-18 14:44:46,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-12-18 14:44:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-12-18 14:44:46,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-12-18 14:44:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-12-18 14:44:46,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-12-18 14:44:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 14:44:46,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 14:44:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-18 14:44:46,842 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-18 14:44:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 14:44:46,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 14:44:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-18 14:44:46,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-18 14:44:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 14:44:46,843 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 14:44:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 14:44:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 14:44:46,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 14:44:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-18 14:44:46,844 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-12-18 14:44:46,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-12-18 14:44:47,722 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 14:44:47,724 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 14:44:47,874 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 14:45:11,509 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 14:45:11,526 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 14:45:11,527 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 14:45:11,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:45:11 BoogieIcfgContainer [2021-12-18 14:45:11,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 14:45:11,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 14:45:11,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 14:45:11,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 14:45:11,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:44:42" (1/3) ... [2021-12-18 14:45:11,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23eff791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:45:11, skipping insertion in model container [2021-12-18 14:45:11,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:44:46" (2/3) ... [2021-12-18 14:45:11,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23eff791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:45:11, skipping insertion in model container [2021-12-18 14:45:11,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:45:11" (3/3) ... [2021-12-18 14:45:11,535 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-12-18 14:45:11,539 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 14:45:11,539 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-18 14:45:11,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 14:45:11,596 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 14:45:11,599 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-18 14:45:11,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 3089 states, 2061 states have (on average 1.2518195050946144) internal successors, (2580), 2105 states have internal predecessors, (2580), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) [2021-12-18 14:45:11,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-18 14:45:11,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:45:11,663 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:45:11,664 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:45:11,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:45:11,667 INFO L85 PathProgramCache]: Analyzing trace with hash 876043152, now seen corresponding path program 1 times [2021-12-18 14:45:11,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:45:11,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613801312] [2021-12-18 14:45:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:45:11,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:45:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:45:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:45:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:45:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:45:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:45:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:45:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:45:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:45:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:45:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:45:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:45:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:45:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:45:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:45:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:45:12,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:45:12,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613801312] [2021-12-18 14:45:12,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613801312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:45:12,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:45:12,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 14:45:12,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537814267] [2021-12-18 14:45:12,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:45:12,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 14:45:12,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:45:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 14:45:12,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 14:45:12,756 INFO L87 Difference]: Start difference. First operand has 3089 states, 2061 states have (on average 1.2518195050946144) internal successors, (2580), 2105 states have internal predecessors, (2580), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:45:27,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:45:27,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:45:27,533 INFO L93 Difference]: Finished difference Result 6289 states and 9002 transitions. [2021-12-18 14:45:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:45:27,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2021-12-18 14:45:27,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:45:27,573 INFO L225 Difference]: With dead ends: 6289 [2021-12-18 14:45:27,574 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:45:27,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:45:27,602 INFO L933 BasicCegarLoop]: 4024 mSDtfsCounter, 4234 mSDsluCounter, 3645 mSDsCounter, 0 mSdLazyCounter, 3458 mSolverCounterSat, 1867 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4737 SdHoareTripleChecker+Valid, 7669 SdHoareTripleChecker+Invalid, 5326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1867 IncrementalHoareTripleChecker+Valid, 3458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-18 14:45:27,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4737 Valid, 7669 Invalid, 5326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1867 Valid, 3458 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2021-12-18 14:45:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:45:27,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:45:27,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.240612648221344) internal successors, (2511), 2065 states have internal predecessors, (2511), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:45:27,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4233 transitions. [2021-12-18 14:45:27,865 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4233 transitions. Word has length 163 [2021-12-18 14:45:27,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:45:27,868 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4233 transitions. [2021-12-18 14:45:27,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:45:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4233 transitions. [2021-12-18 14:45:27,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-18 14:45:27,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:45:27,877 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:45:27,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 14:45:27,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:45:27,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:45:27,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2123784771, now seen corresponding path program 1 times [2021-12-18 14:45:27,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:45:27,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732212365] [2021-12-18 14:45:27,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:45:27,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:45:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:45:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:45:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:45:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:45:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:45:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:45:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:45:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:45:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:45:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:45:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:45:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:45:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:45:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:45:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:28,634 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:45:28,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:45:28,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732212365] [2021-12-18 14:45:28,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732212365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:45:28,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:45:28,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:45:28,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682292614] [2021-12-18 14:45:28,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:45:28,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:45:28,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:45:28,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:45:28,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:45:28,637 INFO L87 Difference]: Start difference. First operand 3019 states and 4233 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:45:44,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:45:45,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:45:45,233 INFO L93 Difference]: Finished difference Result 6161 states and 8697 transitions. [2021-12-18 14:45:45,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:45:45,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2021-12-18 14:45:45,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:45:45,249 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:45:45,249 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:45:45,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:45:45,260 INFO L933 BasicCegarLoop]: 3935 mSDtfsCounter, 6089 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 3365 mSolverCounterSat, 4814 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6089 SdHoareTripleChecker+Valid, 7506 SdHoareTripleChecker+Invalid, 8180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4814 IncrementalHoareTripleChecker+Valid, 3365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-12-18 14:45:45,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6089 Valid, 7506 Invalid, 8180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4814 Valid, 3365 Invalid, 1 Unknown, 0 Unchecked, 16.0s Time] [2021-12-18 14:45:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:45:45,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:45:45,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2401185770750989) internal successors, (2510), 2065 states have internal predecessors, (2510), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:45:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4232 transitions. [2021-12-18 14:45:45,376 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4232 transitions. Word has length 164 [2021-12-18 14:45:45,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:45:45,376 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4232 transitions. [2021-12-18 14:45:45,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:45:45,377 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4232 transitions. [2021-12-18 14:45:45,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-18 14:45:45,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:45:45,380 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:45:45,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 14:45:45,380 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:45:45,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:45:45,380 INFO L85 PathProgramCache]: Analyzing trace with hash -514653268, now seen corresponding path program 1 times [2021-12-18 14:45:45,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:45:45,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308261787] [2021-12-18 14:45:45,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:45:45,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:45:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:45:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:45:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:45:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:45:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:45:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:45:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:45:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:45:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:45:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:45:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:45:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:45:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:45:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:45:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:45:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:45:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:45:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:45:46,034 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:45:46,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:45:46,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308261787] [2021-12-18 14:45:46,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308261787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:45:46,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:45:46,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:45:46,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464873212] [2021-12-18 14:45:46,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:45:46,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:45:46,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:45:46,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:45:46,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:45:46,036 INFO L87 Difference]: Start difference. First operand 3019 states and 4232 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:46:02,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:46:03,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:46:03,130 INFO L93 Difference]: Finished difference Result 6163 states and 8697 transitions. [2021-12-18 14:46:03,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:46:03,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2021-12-18 14:46:03,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:46:03,147 INFO L225 Difference]: With dead ends: 6163 [2021-12-18 14:46:03,148 INFO L226 Difference]: Without dead ends: 3161 [2021-12-18 14:46:03,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-18 14:46:03,163 INFO L933 BasicCegarLoop]: 3939 mSDtfsCounter, 6086 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 3370 mSolverCounterSat, 4806 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6086 SdHoareTripleChecker+Valid, 7515 SdHoareTripleChecker+Invalid, 8177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4806 IncrementalHoareTripleChecker+Valid, 3370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-12-18 14:46:03,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6086 Valid, 7515 Invalid, 8177 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4806 Valid, 3370 Invalid, 1 Unknown, 0 Unchecked, 16.5s Time] [2021-12-18 14:46:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-12-18 14:46:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3019. [2021-12-18 14:46:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2396245059288538) internal successors, (2509), 2065 states have internal predecessors, (2509), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:46:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4231 transitions. [2021-12-18 14:46:03,285 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4231 transitions. Word has length 165 [2021-12-18 14:46:03,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:46:03,286 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4231 transitions. [2021-12-18 14:46:03,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:46:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4231 transitions. [2021-12-18 14:46:03,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-18 14:46:03,288 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:46:03,288 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:46:03,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 14:46:03,289 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:46:03,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:46:03,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2056667623, now seen corresponding path program 1 times [2021-12-18 14:46:03,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:46:03,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200104729] [2021-12-18 14:46:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:46:03,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:46:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:46:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:46:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:46:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:46:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:46:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:46:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:46:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:46:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:46:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:46:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:46:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:46:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:46:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:46:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:46:03,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:46:03,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200104729] [2021-12-18 14:46:03,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200104729] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:46:03,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:46:03,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:46:03,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246793099] [2021-12-18 14:46:03,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:46:03,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:46:03,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:46:03,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:46:03,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:46:03,968 INFO L87 Difference]: Start difference. First operand 3019 states and 4231 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:46:22,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:46:22,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:46:22,643 INFO L93 Difference]: Finished difference Result 6161 states and 8693 transitions. [2021-12-18 14:46:22,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:46:22,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2021-12-18 14:46:22,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:46:22,664 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:46:22,665 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:46:22,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:46:22,779 INFO L933 BasicCegarLoop]: 3936 mSDtfsCounter, 6081 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 3366 mSolverCounterSat, 4808 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6081 SdHoareTripleChecker+Valid, 7510 SdHoareTripleChecker+Invalid, 8175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4808 IncrementalHoareTripleChecker+Valid, 3366 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2021-12-18 14:46:22,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6081 Valid, 7510 Invalid, 8175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4808 Valid, 3366 Invalid, 1 Unknown, 0 Unchecked, 18.0s Time] [2021-12-18 14:46:22,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:46:22,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:46:22,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2391304347826086) internal successors, (2508), 2065 states have internal predecessors, (2508), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:46:22,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4230 transitions. [2021-12-18 14:46:22,931 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4230 transitions. Word has length 166 [2021-12-18 14:46:22,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:46:22,931 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4230 transitions. [2021-12-18 14:46:22,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:46:22,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4230 transitions. [2021-12-18 14:46:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-18 14:46:22,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:46:22,935 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:46:22,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 14:46:22,936 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:46:22,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:46:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1795011528, now seen corresponding path program 1 times [2021-12-18 14:46:22,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:46:22,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85664575] [2021-12-18 14:46:22,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:46:22,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:46:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:46:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:46:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:46:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:46:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:46:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:46:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:46:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:46:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:46:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:46:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:46:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:46:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:46:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:46:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:46:23,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:46:23,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85664575] [2021-12-18 14:46:23,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85664575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:46:23,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:46:23,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:46:23,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312305092] [2021-12-18 14:46:23,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:46:23,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:46:23,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:46:23,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:46:23,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:46:23,676 INFO L87 Difference]: Start difference. First operand 3019 states and 4230 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:46:41,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:46:41,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:46:41,786 INFO L93 Difference]: Finished difference Result 6161 states and 8691 transitions. [2021-12-18 14:46:41,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:46:41,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2021-12-18 14:46:41,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:46:41,806 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:46:41,806 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:46:41,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:46:41,823 INFO L933 BasicCegarLoop]: 3933 mSDtfsCounter, 6077 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 3363 mSolverCounterSat, 4812 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6077 SdHoareTripleChecker+Valid, 7505 SdHoareTripleChecker+Invalid, 8176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4812 IncrementalHoareTripleChecker+Valid, 3363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-12-18 14:46:41,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6077 Valid, 7505 Invalid, 8176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4812 Valid, 3363 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2021-12-18 14:46:41,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:46:42,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:46:42,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2386363636363635) internal successors, (2507), 2065 states have internal predecessors, (2507), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:46:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4229 transitions. [2021-12-18 14:46:42,113 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4229 transitions. Word has length 167 [2021-12-18 14:46:42,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:46:42,113 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4229 transitions. [2021-12-18 14:46:42,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:46:42,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4229 transitions. [2021-12-18 14:46:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-18 14:46:42,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:46:42,116 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:46:42,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 14:46:42,117 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:46:42,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:46:42,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1052497525, now seen corresponding path program 1 times [2021-12-18 14:46:42,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:46:42,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923484540] [2021-12-18 14:46:42,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:46:42,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:46:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:46:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:46:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:46:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:46:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:46:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:46:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:46:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:46:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:46:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:46:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:46:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:46:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:46:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:46:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:46:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:46:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:46:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:46:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:46:42,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:46:42,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923484540] [2021-12-18 14:46:42,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923484540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:46:42,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:46:42,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:46:42,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910999789] [2021-12-18 14:46:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:46:42,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:46:42,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:46:42,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:46:42,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:46:42,808 INFO L87 Difference]: Start difference. First operand 3019 states and 4229 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:47:01,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:47:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:47:01,410 INFO L93 Difference]: Finished difference Result 6161 states and 8689 transitions. [2021-12-18 14:47:01,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:47:01,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2021-12-18 14:47:01,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:47:01,429 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:47:01,429 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:47:01,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:47:01,443 INFO L933 BasicCegarLoop]: 3934 mSDtfsCounter, 6073 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 3364 mSolverCounterSat, 4808 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6073 SdHoareTripleChecker+Valid, 7508 SdHoareTripleChecker+Invalid, 8173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4808 IncrementalHoareTripleChecker+Valid, 3364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2021-12-18 14:47:01,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6073 Valid, 7508 Invalid, 8173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4808 Valid, 3364 Invalid, 1 Unknown, 0 Unchecked, 18.0s Time] [2021-12-18 14:47:01,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:47:01,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:47:01,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2381422924901186) internal successors, (2506), 2065 states have internal predecessors, (2506), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:47:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4228 transitions. [2021-12-18 14:47:01,646 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4228 transitions. Word has length 168 [2021-12-18 14:47:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:47:01,647 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4228 transitions. [2021-12-18 14:47:01,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:47:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4228 transitions. [2021-12-18 14:47:01,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-18 14:47:01,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:47:01,649 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:47:01,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 14:47:01,650 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:47:01,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:47:01,651 INFO L85 PathProgramCache]: Analyzing trace with hash -376083484, now seen corresponding path program 1 times [2021-12-18 14:47:01,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:47:01,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818096150] [2021-12-18 14:47:01,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:47:01,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:47:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:01,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:47:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:47:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:47:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:47:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:47:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:47:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:47:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:47:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:47:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:47:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:47:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:47:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:47:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:47:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:02,285 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:47:02,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:47:02,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818096150] [2021-12-18 14:47:02,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818096150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:47:02,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:47:02,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:47:02,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068756146] [2021-12-18 14:47:02,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:47:02,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:47:02,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:47:02,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:47:02,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:47:02,287 INFO L87 Difference]: Start difference. First operand 3019 states and 4228 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:47:20,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:47:21,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:47:21,336 INFO L93 Difference]: Finished difference Result 6161 states and 8687 transitions. [2021-12-18 14:47:21,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:47:21,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2021-12-18 14:47:21,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:47:21,364 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:47:21,364 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:47:21,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:47:21,382 INFO L933 BasicCegarLoop]: 3931 mSDtfsCounter, 6069 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 3361 mSolverCounterSat, 4812 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6069 SdHoareTripleChecker+Valid, 7503 SdHoareTripleChecker+Invalid, 8174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4812 IncrementalHoareTripleChecker+Valid, 3361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-12-18 14:47:21,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6069 Valid, 7503 Invalid, 8174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4812 Valid, 3361 Invalid, 1 Unknown, 0 Unchecked, 18.4s Time] [2021-12-18 14:47:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:47:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:47:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2376482213438735) internal successors, (2505), 2065 states have internal predecessors, (2505), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:47:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4227 transitions. [2021-12-18 14:47:21,656 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4227 transitions. Word has length 169 [2021-12-18 14:47:21,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:47:21,657 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4227 transitions. [2021-12-18 14:47:21,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:47:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4227 transitions. [2021-12-18 14:47:21,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-18 14:47:21,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:47:21,661 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:47:21,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 14:47:21,661 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:47:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:47:21,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1597905199, now seen corresponding path program 1 times [2021-12-18 14:47:21,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:47:21,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137700709] [2021-12-18 14:47:21,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:47:21,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:47:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:47:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:47:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:47:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:47:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:47:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:47:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:47:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:47:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:47:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:47:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:47:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:47:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:47:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:47:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:47:22,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:47:22,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137700709] [2021-12-18 14:47:22,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137700709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:47:22,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:47:22,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:47:22,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537620443] [2021-12-18 14:47:22,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:47:22,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:47:22,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:47:22,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:47:22,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:47:22,458 INFO L87 Difference]: Start difference. First operand 3019 states and 4227 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:47:41,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:47:41,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:47:41,737 INFO L93 Difference]: Finished difference Result 6161 states and 8685 transitions. [2021-12-18 14:47:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:47:41,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2021-12-18 14:47:41,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:47:41,774 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:47:41,774 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:47:41,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:47:41,789 INFO L933 BasicCegarLoop]: 3931 mSDtfsCounter, 6065 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 3361 mSolverCounterSat, 4810 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6065 SdHoareTripleChecker+Valid, 7504 SdHoareTripleChecker+Invalid, 8172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4810 IncrementalHoareTripleChecker+Valid, 3361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2021-12-18 14:47:41,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6065 Valid, 7504 Invalid, 8172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4810 Valid, 3361 Invalid, 1 Unknown, 0 Unchecked, 18.7s Time] [2021-12-18 14:47:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:47:42,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:47:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2371541501976284) internal successors, (2504), 2065 states have internal predecessors, (2504), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:47:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4226 transitions. [2021-12-18 14:47:42,070 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4226 transitions. Word has length 170 [2021-12-18 14:47:42,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:47:42,071 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4226 transitions. [2021-12-18 14:47:42,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:47:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4226 transitions. [2021-12-18 14:47:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-18 14:47:42,074 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:47:42,074 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:47:42,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 14:47:42,075 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:47:42,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:47:42,075 INFO L85 PathProgramCache]: Analyzing trace with hash -705156096, now seen corresponding path program 1 times [2021-12-18 14:47:42,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:47:42,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037280682] [2021-12-18 14:47:42,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:47:42,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:47:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:47:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:47:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:47:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:47:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:47:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:47:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:47:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:47:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:47:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:47:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:47:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:47:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:47:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:47:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:47:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:47:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:47:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:47:42,782 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:47:42,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:47:42,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037280682] [2021-12-18 14:47:42,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037280682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:47:42,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:47:42,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:47:42,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388265404] [2021-12-18 14:47:42,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:47:42,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:47:42,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:47:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:47:42,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:47:42,784 INFO L87 Difference]: Start difference. First operand 3019 states and 4226 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:48:02,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:48:02,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:48:02,487 INFO L93 Difference]: Finished difference Result 6161 states and 8683 transitions. [2021-12-18 14:48:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:48:02,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2021-12-18 14:48:02,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:48:02,528 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:48:02,528 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:48:02,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:48:02,541 INFO L933 BasicCegarLoop]: 3929 mSDtfsCounter, 6061 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 3359 mSolverCounterSat, 4812 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6061 SdHoareTripleChecker+Valid, 7501 SdHoareTripleChecker+Invalid, 8172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4812 IncrementalHoareTripleChecker+Valid, 3359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-12-18 14:48:02,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6061 Valid, 7501 Invalid, 8172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4812 Valid, 3359 Invalid, 1 Unknown, 0 Unchecked, 19.0s Time] [2021-12-18 14:48:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:48:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:48:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2366600790513833) internal successors, (2503), 2065 states have internal predecessors, (2503), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:48:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4225 transitions. [2021-12-18 14:48:02,764 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4225 transitions. Word has length 171 [2021-12-18 14:48:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:48:02,765 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4225 transitions. [2021-12-18 14:48:02,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:48:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4225 transitions. [2021-12-18 14:48:02,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-18 14:48:02,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:48:02,768 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:48:02,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 14:48:02,768 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:48:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:48:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1314778925, now seen corresponding path program 1 times [2021-12-18 14:48:02,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:48:02,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143239991] [2021-12-18 14:48:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:48:02,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:48:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:48:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:48:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:48:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:48:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:48:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:48:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:48:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:48:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:48:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:48:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:48:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:48:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:48:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:48:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:48:03,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:48:03,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143239991] [2021-12-18 14:48:03,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143239991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:48:03,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:48:03,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:48:03,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698319970] [2021-12-18 14:48:03,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:48:03,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:48:03,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:48:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:48:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:48:03,420 INFO L87 Difference]: Start difference. First operand 3019 states and 4225 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:48:22,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:48:22,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:48:22,324 INFO L93 Difference]: Finished difference Result 6161 states and 8681 transitions. [2021-12-18 14:48:22,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:48:22,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2021-12-18 14:48:22,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:48:22,337 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:48:22,337 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:48:22,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:48:22,360 INFO L933 BasicCegarLoop]: 3931 mSDtfsCounter, 6057 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 3361 mSolverCounterSat, 4806 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6057 SdHoareTripleChecker+Valid, 7506 SdHoareTripleChecker+Invalid, 8168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4806 IncrementalHoareTripleChecker+Valid, 3361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-12-18 14:48:22,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6057 Valid, 7506 Invalid, 8168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4806 Valid, 3361 Invalid, 1 Unknown, 0 Unchecked, 18.3s Time] [2021-12-18 14:48:22,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:48:22,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:48:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2361660079051384) internal successors, (2502), 2065 states have internal predecessors, (2502), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:48:22,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4224 transitions. [2021-12-18 14:48:22,495 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4224 transitions. Word has length 172 [2021-12-18 14:48:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:48:22,497 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4224 transitions. [2021-12-18 14:48:22,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:48:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4224 transitions. [2021-12-18 14:48:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-18 14:48:22,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:48:22,500 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:48:22,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 14:48:22,501 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:48:22,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:48:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash -377228260, now seen corresponding path program 1 times [2021-12-18 14:48:22,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:48:22,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353770064] [2021-12-18 14:48:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:48:22,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:48:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:48:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:48:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:48:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:48:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:48:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:48:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:48:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:48:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:48:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:48:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:48:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:48:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:48:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:48:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:48:23,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:48:23,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353770064] [2021-12-18 14:48:23,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353770064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:48:23,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:48:23,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:48:23,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341340746] [2021-12-18 14:48:23,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:48:23,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:48:23,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:48:23,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:48:23,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:48:23,123 INFO L87 Difference]: Start difference. First operand 3019 states and 4224 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:48:41,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:48:41,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:48:41,960 INFO L93 Difference]: Finished difference Result 6161 states and 8679 transitions. [2021-12-18 14:48:41,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:48:41,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2021-12-18 14:48:41,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:48:41,979 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:48:41,979 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:48:41,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:48:41,989 INFO L933 BasicCegarLoop]: 3926 mSDtfsCounter, 6053 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 3356 mSolverCounterSat, 4814 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6053 SdHoareTripleChecker+Valid, 7497 SdHoareTripleChecker+Invalid, 8171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4814 IncrementalHoareTripleChecker+Valid, 3356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-12-18 14:48:41,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6053 Valid, 7497 Invalid, 8171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4814 Valid, 3356 Invalid, 1 Unknown, 0 Unchecked, 18.2s Time] [2021-12-18 14:48:41,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:48:42,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:48:42,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2356719367588933) internal successors, (2501), 2065 states have internal predecessors, (2501), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:48:42,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4223 transitions. [2021-12-18 14:48:42,124 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4223 transitions. Word has length 173 [2021-12-18 14:48:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:48:42,125 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4223 transitions. [2021-12-18 14:48:42,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:48:42,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4223 transitions. [2021-12-18 14:48:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-18 14:48:42,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:48:42,128 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:48:42,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 14:48:42,128 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:48:42,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:48:42,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1175326839, now seen corresponding path program 1 times [2021-12-18 14:48:42,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:48:42,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293744944] [2021-12-18 14:48:42,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:48:42,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:48:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:48:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:48:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:48:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:48:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:48:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:48:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:48:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:48:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:48:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:48:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:48:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:48:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:48:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:48:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:48:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:48:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:48:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:48:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:48:42,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:48:42,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293744944] [2021-12-18 14:48:42,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293744944] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:48:42,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:48:42,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:48:42,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085952743] [2021-12-18 14:48:42,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:48:42,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:48:42,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:48:42,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:48:42,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:48:42,707 INFO L87 Difference]: Start difference. First operand 3019 states and 4223 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:49:01,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:49:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:49:01,690 INFO L93 Difference]: Finished difference Result 6161 states and 8677 transitions. [2021-12-18 14:49:01,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:49:01,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2021-12-18 14:49:01,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:49:01,705 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:49:01,705 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:49:01,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:49:01,714 INFO L933 BasicCegarLoop]: 3926 mSDtfsCounter, 6049 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 3356 mSolverCounterSat, 4812 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6049 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 8169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4812 IncrementalHoareTripleChecker+Valid, 3356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-12-18 14:49:01,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6049 Valid, 7498 Invalid, 8169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4812 Valid, 3356 Invalid, 1 Unknown, 0 Unchecked, 18.4s Time] [2021-12-18 14:49:01,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:49:01,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:49:01,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2351778656126482) internal successors, (2500), 2065 states have internal predecessors, (2500), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:49:01,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4222 transitions. [2021-12-18 14:49:01,846 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4222 transitions. Word has length 174 [2021-12-18 14:49:01,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:49:01,847 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4222 transitions. [2021-12-18 14:49:01,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:49:01,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4222 transitions. [2021-12-18 14:49:01,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 14:49:01,850 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:49:01,850 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:49:01,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 14:49:01,850 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:49:01,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:49:01,851 INFO L85 PathProgramCache]: Analyzing trace with hash -32062408, now seen corresponding path program 1 times [2021-12-18 14:49:01,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:49:01,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225684731] [2021-12-18 14:49:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:49:01,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:49:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:49:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:49:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:49:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:49:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:49:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:49:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:49:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:49:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:49:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:49:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:49:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:49:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:49:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:49:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:49:02,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:49:02,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225684731] [2021-12-18 14:49:02,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225684731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:49:02,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:49:02,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:49:02,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090853032] [2021-12-18 14:49:02,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:49:02,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:49:02,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:49:02,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:49:02,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:49:02,476 INFO L87 Difference]: Start difference. First operand 3019 states and 4222 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:49:21,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:49:21,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:49:21,659 INFO L93 Difference]: Finished difference Result 6163 states and 8677 transitions. [2021-12-18 14:49:21,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 14:49:21,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2021-12-18 14:49:21,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:49:21,674 INFO L225 Difference]: With dead ends: 6163 [2021-12-18 14:49:21,674 INFO L226 Difference]: Without dead ends: 3161 [2021-12-18 14:49:21,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-18 14:49:21,688 INFO L933 BasicCegarLoop]: 3925 mSDtfsCounter, 6046 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 3356 mSolverCounterSat, 4814 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6046 SdHoareTripleChecker+Valid, 7497 SdHoareTripleChecker+Invalid, 8171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4814 IncrementalHoareTripleChecker+Valid, 3356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-12-18 14:49:21,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6046 Valid, 7497 Invalid, 8171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4814 Valid, 3356 Invalid, 1 Unknown, 0 Unchecked, 18.5s Time] [2021-12-18 14:49:21,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-12-18 14:49:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3019. [2021-12-18 14:49:21,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.234683794466403) internal successors, (2499), 2065 states have internal predecessors, (2499), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:49:21,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4221 transitions. [2021-12-18 14:49:21,830 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4221 transitions. Word has length 175 [2021-12-18 14:49:21,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:49:21,830 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4221 transitions. [2021-12-18 14:49:21,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:49:21,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4221 transitions. [2021-12-18 14:49:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-18 14:49:21,833 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:49:21,833 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:49:21,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 14:49:21,834 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:49:21,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:49:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1163913189, now seen corresponding path program 1 times [2021-12-18 14:49:21,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:49:21,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98645685] [2021-12-18 14:49:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:49:21,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:49:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:49:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:49:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:49:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:49:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:49:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:49:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:49:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:49:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:49:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:49:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:49:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:49:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:49:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:49:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:22,487 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:49:22,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:49:22,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98645685] [2021-12-18 14:49:22,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98645685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:49:22,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:49:22,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:49:22,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356004069] [2021-12-18 14:49:22,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:49:22,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:49:22,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:49:22,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:49:22,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:49:22,489 INFO L87 Difference]: Start difference. First operand 3019 states and 4221 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:49:41,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:49:41,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:49:41,495 INFO L93 Difference]: Finished difference Result 6161 states and 8673 transitions. [2021-12-18 14:49:41,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:49:41,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2021-12-18 14:49:41,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:49:41,510 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:49:41,510 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:49:41,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:49:41,524 INFO L933 BasicCegarLoop]: 3924 mSDtfsCounter, 6041 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 4812 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6041 SdHoareTripleChecker+Valid, 7496 SdHoareTripleChecker+Invalid, 8167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4812 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-12-18 14:49:41,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6041 Valid, 7496 Invalid, 8167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4812 Valid, 3354 Invalid, 1 Unknown, 0 Unchecked, 18.4s Time] [2021-12-18 14:49:41,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:49:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:49:41,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2341897233201582) internal successors, (2498), 2065 states have internal predecessors, (2498), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:49:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4220 transitions. [2021-12-18 14:49:41,670 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4220 transitions. Word has length 176 [2021-12-18 14:49:41,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:49:41,671 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4220 transitions. [2021-12-18 14:49:41,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:49:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4220 transitions. [2021-12-18 14:49:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-18 14:49:41,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:49:41,677 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:49:41,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 14:49:41,677 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:49:41,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:49:41,678 INFO L85 PathProgramCache]: Analyzing trace with hash -301032364, now seen corresponding path program 1 times [2021-12-18 14:49:41,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:49:41,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256193481] [2021-12-18 14:49:41,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:49:41,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:49:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:41,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:49:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:49:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:41,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:49:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:49:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:49:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:49:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:49:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:49:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:49:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:49:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:49:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:49:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:49:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:49:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:49:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:49:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:49:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:49:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:49:42,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:49:42,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256193481] [2021-12-18 14:49:42,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256193481] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:49:42,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:49:42,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:49:42,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754526063] [2021-12-18 14:49:42,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:49:42,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:49:42,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:49:42,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:49:42,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:49:42,411 INFO L87 Difference]: Start difference. First operand 3019 states and 4220 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:50:02,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:02,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:50:02,355 INFO L93 Difference]: Finished difference Result 6161 states and 8671 transitions. [2021-12-18 14:50:02,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 14:50:02,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2021-12-18 14:50:02,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:50:02,376 INFO L225 Difference]: With dead ends: 6161 [2021-12-18 14:50:02,376 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:50:02,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 14:50:02,389 INFO L933 BasicCegarLoop]: 3924 mSDtfsCounter, 6037 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 4810 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6037 SdHoareTripleChecker+Valid, 7497 SdHoareTripleChecker+Invalid, 8165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4810 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-12-18 14:50:02,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6037 Valid, 7497 Invalid, 8165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4810 Valid, 3354 Invalid, 1 Unknown, 0 Unchecked, 19.3s Time] [2021-12-18 14:50:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:50:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-12-18 14:50:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.233695652173913) internal successors, (2497), 2065 states have internal predecessors, (2497), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:50:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4219 transitions. [2021-12-18 14:50:02,523 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4219 transitions. Word has length 177 [2021-12-18 14:50:02,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:50:02,523 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4219 transitions. [2021-12-18 14:50:02,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 14:50:02,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4219 transitions. [2021-12-18 14:50:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-18 14:50:02,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:50:02,525 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 14:50:02,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 14:50:02,526 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:50:02,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:50:02,526 INFO L85 PathProgramCache]: Analyzing trace with hash -272403213, now seen corresponding path program 1 times [2021-12-18 14:50:02,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:50:02,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214751928] [2021-12-18 14:50:02,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:50:02,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:50:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:50:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:50:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:50:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:50:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:50:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:50:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:50:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:50:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:50:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:50:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:50:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:50:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:50:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:50:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:50:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:50:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:50:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 14:50:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 14:50:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 14:50:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 14:50:02,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:50:02,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214751928] [2021-12-18 14:50:02,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214751928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:50:02,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:50:02,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:50:02,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125929860] [2021-12-18 14:50:02,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:50:02,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:50:02,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:50:02,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:50:02,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:50:02,993 INFO L87 Difference]: Start difference. First operand 3019 states and 4219 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-18 14:50:22,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:24,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:26,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:26,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:50:26,296 INFO L93 Difference]: Finished difference Result 3161 states and 4440 transitions. [2021-12-18 14:50:26,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 14:50:26,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 177 [2021-12-18 14:50:26,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:50:26,310 INFO L225 Difference]: With dead ends: 3161 [2021-12-18 14:50:26,310 INFO L226 Difference]: Without dead ends: 3159 [2021-12-18 14:50:26,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-18 14:50:26,315 INFO L933 BasicCegarLoop]: 3943 mSDtfsCounter, 880 mSDsluCounter, 11610 mSDsCounter, 0 mSdLazyCounter, 3817 mSolverCounterSat, 898 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 15553 SdHoareTripleChecker+Invalid, 4718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 3817 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2021-12-18 14:50:26,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 15553 Invalid, 4718 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [898 Valid, 3817 Invalid, 3 Unknown, 0 Unchecked, 22.6s Time] [2021-12-18 14:50:26,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-12-18 14:50:26,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3017. [2021-12-18 14:50:26,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 2023 states have (on average 1.2333168561542265) internal successors, (2495), 2063 states have internal predecessors, (2495), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 14:50:26,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 4217 transitions. [2021-12-18 14:50:26,463 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 4217 transitions. Word has length 177 [2021-12-18 14:50:26,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:50:26,463 INFO L470 AbstractCegarLoop]: Abstraction has 3017 states and 4217 transitions. [2021-12-18 14:50:26,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-18 14:50:26,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 4217 transitions. [2021-12-18 14:50:26,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 14:50:26,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 14:50:26,466 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 14:50:26,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 14:50:26,466 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 14:50:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 14:50:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash 497124328, now seen corresponding path program 1 times [2021-12-18 14:50:26,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 14:50:26,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307624439] [2021-12-18 14:50:26,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 14:50:26,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 14:50:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 14:50:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 14:50:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 14:50:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:50:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:50:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 14:50:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:50:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:50:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 14:50:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 14:50:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 14:50:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 14:50:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 14:50:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 14:50:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 14:50:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 14:50:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 14:50:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 14:50:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 14:50:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 14:50:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 14:50:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 14:50:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 14:50:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-12-18 14:50:26,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 14:50:26,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307624439] [2021-12-18 14:50:26,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307624439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 14:50:26,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 14:50:26,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 14:50:26,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659286365] [2021-12-18 14:50:26,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 14:50:26,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 14:50:26,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 14:50:26,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 14:50:26,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 14:50:26,980 INFO L87 Difference]: Start difference. First operand 3017 states and 4217 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-18 14:50:44,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:46,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:48,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 14:50:49,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 14:50:49,398 INFO L93 Difference]: Finished difference Result 3157 states and 4432 transitions. [2021-12-18 14:50:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 14:50:49,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 201 [2021-12-18 14:50:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 14:50:49,400 INFO L225 Difference]: With dead ends: 3157 [2021-12-18 14:50:49,400 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 14:50:49,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-18 14:50:49,407 INFO L933 BasicCegarLoop]: 3938 mSDtfsCounter, 878 mSDsluCounter, 11604 mSDsCounter, 0 mSdLazyCounter, 3794 mSolverCounterSat, 898 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 15542 SdHoareTripleChecker+Invalid, 4695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 3794 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2021-12-18 14:50:49,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 15542 Invalid, 4695 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [898 Valid, 3794 Invalid, 3 Unknown, 0 Unchecked, 21.9s Time] [2021-12-18 14:50:49,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 14:50:49,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 14:50:49,408 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) [2021-12-18 14:50:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 14:50:49,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2021-12-18 14:50:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 14:50:49,409 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 14:50:49,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-18 14:50:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 14:50:49,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 14:50:49,411 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-18 14:50:49,412 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-18 14:50:49,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 14:50:49,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-18 14:52:37,218 WARN L227 SmtUtils]: Spent 1.78m on a formula simplification. DAG size of input: 89 DAG size of output: 87 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 14:54:23,482 WARN L227 SmtUtils]: Spent 1.77m on a formula simplification. DAG size of input: 89 DAG size of output: 87 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 14:56:09,407 WARN L227 SmtUtils]: Spent 1.77m on a formula simplification. DAG size of input: 89 DAG size of output: 87 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 14:57:54,795 WARN L227 SmtUtils]: Spent 1.76m on a formula simplification. DAG size of input: 89 DAG size of output: 87 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Killed by 15