./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-xen-netfront.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 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 03:58:56,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 03:58:56,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 03:58:57,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 03:58:57,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 03:58:57,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 03:58:57,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 03:58:57,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 03:58:57,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 03:58:57,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 03:58:57,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 03:58:57,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 03:58:57,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 03:58:57,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 03:58:57,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 03:58:57,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 03:58:57,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 03:58:57,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 03:58:57,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 03:58:57,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 03:58:57,029 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 03:58:57,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 03:58:57,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 03:58:57,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 03:58:57,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 03:58:57,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 03:58:57,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 03:58:57,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 03:58:57,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 03:58:57,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 03:58:57,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 03:58:57,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 03:58:57,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 03:58:57,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 03:58:57,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 03:58:57,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 03:58:57,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 03:58:57,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 03:58:57,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 03:58:57,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 03:58:57,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 03:58:57,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 03:58:57,052 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 03:58:57,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 03:58:57,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 03:58:57,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 03:58:57,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 03:58:57,082 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 03:58:57,082 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 03:58:57,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 03:58:57,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 03:58:57,083 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 03:58:57,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 03:58:57,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 03:58:57,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 03:58:57,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 03:58:57,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 03:58:57,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 03:58:57,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 03:58:57,085 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 03:58:57,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 03:58:57,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 03:58:57,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 03:58:57,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 03:58:57,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:58:57,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 03:58:57,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 03:58:57,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 03:58:57,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 03:58:57,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 03:58:57,087 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 03:58:57,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 03:58:57,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 03:58:57,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2022-07-23 03:58:57,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 03:58:57,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 03:58:57,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 03:58:57,327 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 03:58:57,328 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 03:58:57,329 INFO L432 ainManager$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-xen-netfront.cil.i [2022-07-23 03:58:57,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e5c733c7/5d923baa1d614ed8a86ef8345d58374d/FLAGe4c4b2b86 [2022-07-23 03:58:58,321 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 03:58:58,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-07-23 03:58:58,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e5c733c7/5d923baa1d614ed8a86ef8345d58374d/FLAGe4c4b2b86 [2022-07-23 03:58:58,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e5c733c7/5d923baa1d614ed8a86ef8345d58374d [2022-07-23 03:58:58,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 03:58:58,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 03:58:58,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 03:58:58,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 03:58:58,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 03:58:58,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:58:58" (1/1) ... [2022-07-23 03:58:58,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:58:58, skipping insertion in model container [2022-07-23 03:58:58,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:58:58" (1/1) ... [2022-07-23 03:58:58,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 03:58:58,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:59:02,668 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-xen-netfront.cil.i[402050,402063] [2022-07-23 03:59:02,672 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-xen-netfront.cil.i[402195,402208] [2022-07-23 03:59:02,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:59:02,753 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 03:59:03,096 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-xen-netfront.cil.i[402050,402063] [2022-07-23 03:59:03,097 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-xen-netfront.cil.i[402195,402208] [2022-07-23 03:59:03,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:59:03,307 INFO L208 MainTranslator]: Completed translation [2022-07-23 03:59:03,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03 WrapperNode [2022-07-23 03:59:03,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 03:59:03,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 03:59:03,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 03:59:03,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 03:59:03,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,541 INFO L137 Inliner]: procedures = 547, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 5036 [2022-07-23 03:59:03,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 03:59:03,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 03:59:03,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 03:59:03,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 03:59:03,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 03:59:03,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 03:59:03,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 03:59:03,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 03:59:03,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (1/1) ... [2022-07-23 03:59:03,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:59:03,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 03:59:03,841 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) [2022-07-23 03:59:03,869 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 [2022-07-23 03:59:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-07-23 03:59:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-07-23 03:59:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 03:59:03,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 03:59:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-23 03:59:03,885 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-23 03:59:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-23 03:59:03,885 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-23 03:59:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 03:59:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 03:59:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2022-07-23 03:59:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2022-07-23 03:59:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-07-23 03:59:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-07-23 03:59:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-23 03:59:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-23 03:59:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2022-07-23 03:59:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2022-07-23 03:59:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-23 03:59:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-23 03:59:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-07-23 03:59:03,887 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-07-23 03:59:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2022-07-23 03:59:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2022-07-23 03:59:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-07-23 03:59:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-07-23 03:59:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-07-23 03:59:03,888 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-07-23 03:59:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-07-23 03:59:03,889 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-07-23 03:59:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 03:59:03,889 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 03:59:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-07-23 03:59:03,889 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-07-23 03:59:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-07-23 03:59:03,890 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-07-23 03:59:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 03:59:03,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 03:59:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-23 03:59:03,890 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-23 03:59:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 03:59:03,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 03:59:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-07-23 03:59:03,891 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-07-23 03:59:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 03:59:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-23 03:59:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-23 03:59:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-07-23 03:59:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-07-23 03:59:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-07-23 03:59:03,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-07-23 03:59:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 03:59:03,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 03:59:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 03:59:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-07-23 03:59:03,895 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-07-23 03:59:03,895 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-07-23 03:59:03,895 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-07-23 03:59:03,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-23 03:59:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-23 03:59:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 03:59:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 03:59:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 03:59:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 03:59:03,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 03:59:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-07-23 03:59:03,897 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-07-23 03:59:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 03:59:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 03:59:03,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 03:59:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 03:59:03,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 03:59:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-23 03:59:03,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-23 03:59:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2022-07-23 03:59:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2022-07-23 03:59:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-23 03:59:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-23 03:59:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-07-23 03:59:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-07-23 03:59:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 03:59:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 03:59:03,900 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-07-23 03:59:03,900 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-07-23 03:59:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2022-07-23 03:59:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2022-07-23 03:59:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2022-07-23 03:59:03,901 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2022-07-23 03:59:03,901 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-23 03:59:03,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-23 03:59:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 03:59:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 03:59:03,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 03:59:03,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 03:59:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 03:59:03,903 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-23 03:59:03,903 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-23 03:59:03,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-07-23 03:59:03,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-07-23 03:59:03,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-07-23 03:59:03,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-07-23 03:59:03,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-07-23 03:59:03,904 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-07-23 03:59:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-07-23 03:59:03,905 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-07-23 03:59:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-23 03:59:03,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-23 03:59:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 03:59:03,905 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 03:59:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-23 03:59:03,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-23 03:59:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-23 03:59:03,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-23 03:59:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 03:59:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 03:59:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-07-23 03:59:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-07-23 03:59:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 03:59:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 03:59:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 03:59:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 03:59:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 03:59:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 03:59:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 03:59:03,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 03:59:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-07-23 03:59:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-07-23 03:59:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-07-23 03:59:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-07-23 03:59:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-07-23 03:59:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-07-23 03:59:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-23 03:59:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-23 03:59:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-23 03:59:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-23 03:59:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-07-23 03:59:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-07-23 03:59:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-07-23 03:59:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-07-23 03:59:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 03:59:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 03:59:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 03:59:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 03:59:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-07-23 03:59:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-07-23 03:59:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-07-23 03:59:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-07-23 03:59:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-23 03:59:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-23 03:59:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 03:59:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-07-23 03:59:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-07-23 03:59:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-07-23 03:59:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-07-23 03:59:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2022-07-23 03:59:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2022-07-23 03:59:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-07-23 03:59:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-07-23 03:59:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 03:59:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-23 03:59:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-23 03:59:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2022-07-23 03:59:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2022-07-23 03:59:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-07-23 03:59:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-07-23 03:59:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 03:59:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-23 03:59:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-23 03:59:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-07-23 03:59:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-07-23 03:59:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-07-23 03:59:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-07-23 03:59:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 03:59:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 03:59:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 03:59:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 03:59:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-07-23 03:59:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-07-23 03:59:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-07-23 03:59:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-07-23 03:59:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-23 03:59:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-23 03:59:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2022-07-23 03:59:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2022-07-23 03:59:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-07-23 03:59:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-07-23 03:59:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-07-23 03:59:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-07-23 03:59:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-07-23 03:59:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-07-23 03:59:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-23 03:59:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-23 03:59:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 03:59:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 03:59:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-07-23 03:59:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-07-23 03:59:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-07-23 03:59:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-07-23 03:59:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 03:59:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 03:59:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 03:59:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 03:59:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-07-23 03:59:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-07-23 03:59:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 03:59:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-23 03:59:03,930 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-23 03:59:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 03:59:03,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 03:59:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-07-23 03:59:03,930 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-07-23 03:59:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-23 03:59:03,931 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-23 03:59:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2022-07-23 03:59:03,931 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2022-07-23 03:59:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2022-07-23 03:59:03,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2022-07-23 03:59:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-23 03:59:03,931 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-23 03:59:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-07-23 03:59:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-07-23 03:59:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2022-07-23 03:59:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2022-07-23 03:59:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2022-07-23 03:59:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2022-07-23 03:59:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-23 03:59:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-23 03:59:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-23 03:59:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-23 03:59:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 03:59:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 03:59:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2022-07-23 03:59:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2022-07-23 03:59:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2022-07-23 03:59:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2022-07-23 03:59:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 03:59:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 03:59:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 03:59:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-23 03:59:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-23 03:59:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-07-23 03:59:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-07-23 03:59:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-07-23 03:59:03,936 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-07-23 03:59:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-07-23 03:59:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-07-23 03:59:04,772 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 03:59:04,775 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 03:59:05,019 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 03:59:11,686 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 03:59:11,732 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 03:59:11,733 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 03:59:11,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:59:11 BoogieIcfgContainer [2022-07-23 03:59:11,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 03:59:11,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 03:59:11,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 03:59:11,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 03:59:11,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 03:58:58" (1/3) ... [2022-07-23 03:59:11,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419f1bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:59:11, skipping insertion in model container [2022-07-23 03:59:11,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:59:03" (2/3) ... [2022-07-23 03:59:11,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419f1bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:59:11, skipping insertion in model container [2022-07-23 03:59:11,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:59:11" (3/3) ... [2022-07-23 03:59:11,748 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-07-23 03:59:11,765 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 03:59:11,765 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 03:59:11,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 03:59:11,889 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@79522e0d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4d9c502 [2022-07-23 03:59:11,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 03:59:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 1720 states, 1177 states have (on average 1.2752761257434155) internal successors, (1501), 1216 states have internal predecessors, (1501), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) [2022-07-23 03:59:11,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-23 03:59:11,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:59:11,943 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:59:11,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 03:59:11,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:59:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash -254622005, now seen corresponding path program 1 times [2022-07-23 03:59:11,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 03:59:11,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998768181] [2022-07-23 03:59:11,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:59:11,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 03:59:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 03:59:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 03:59:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 03:59:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 03:59:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 03:59:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 03:59:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 03:59:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 03:59:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 03:59:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 03:59:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 03:59:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 03:59:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 03:59:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 03:59:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 03:59:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 03:59:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 03:59:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:13,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 03:59:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:13,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 03:59:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 03:59:13,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 03:59:13,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998768181] [2022-07-23 03:59:13,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998768181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:59:13,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:59:13,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 03:59:13,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311467927] [2022-07-23 03:59:13,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:59:13,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:59:13,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 03:59:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:59:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 03:59:13,063 INFO L87 Difference]: Start difference. First operand has 1720 states, 1177 states have (on average 1.2752761257434155) internal successors, (1501), 1216 states have internal predecessors, (1501), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 03:59:15,946 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 [] [2022-07-23 03:59:19,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:21,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:59:23,229 INFO L93 Difference]: Finished difference Result 3492 states and 4827 transitions. [2022-07-23 03:59:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:59:23,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 201 [2022-07-23 03:59:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:59:23,254 INFO L225 Difference]: With dead ends: 3492 [2022-07-23 03:59:23,254 INFO L226 Difference]: Without dead ends: 1761 [2022-07-23 03:59:23,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:59:23,270 INFO L413 NwaCegarLoop]: 2126 mSDtfsCounter, 1203 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 1168 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 4911 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1168 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-23 03:59:23,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 4911 Invalid, 3335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1168 Valid, 2164 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-07-23 03:59:23,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-07-23 03:59:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1679. [2022-07-23 03:59:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2411714039621016) internal successors, (1441), 1196 states have internal predecessors, (1441), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-23 03:59:23,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2249 transitions. [2022-07-23 03:59:23,431 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2249 transitions. Word has length 201 [2022-07-23 03:59:23,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:59:23,433 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2249 transitions. [2022-07-23 03:59:23,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 03:59:23,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2249 transitions. [2022-07-23 03:59:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-23 03:59:23,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:59:23,443 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:59:23,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 03:59:23,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 03:59:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:59:23,445 INFO L85 PathProgramCache]: Analyzing trace with hash 90433789, now seen corresponding path program 1 times [2022-07-23 03:59:23,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 03:59:23,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342436835] [2022-07-23 03:59:23,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:59:23,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 03:59:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 03:59:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 03:59:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 03:59:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 03:59:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 03:59:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 03:59:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 03:59:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 03:59:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 03:59:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 03:59:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 03:59:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 03:59:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:23,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 03:59:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 03:59:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 03:59:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 03:59:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:24,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 03:59:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:24,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 03:59:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:24,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 03:59:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:24,087 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 03:59:24,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 03:59:24,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342436835] [2022-07-23 03:59:24,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342436835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:59:24,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:59:24,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 03:59:24,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674981593] [2022-07-23 03:59:24,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:59:24,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:59:24,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 03:59:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:59:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 03:59:24,093 INFO L87 Difference]: Start difference. First operand 1679 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 03:59:28,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:30,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:59:32,006 INFO L93 Difference]: Finished difference Result 2170 states and 2908 transitions. [2022-07-23 03:59:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 03:59:32,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 201 [2022-07-23 03:59:32,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:59:32,020 INFO L225 Difference]: With dead ends: 2170 [2022-07-23 03:59:32,020 INFO L226 Difference]: Without dead ends: 1759 [2022-07-23 03:59:32,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:59:32,024 INFO L413 NwaCegarLoop]: 2082 mSDtfsCounter, 1202 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 1091 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 4809 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-23 03:59:32,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 4809 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 2098 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-07-23 03:59:32,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-23 03:59:32,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-23 03:59:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2403100775193798) internal successors, (1440), 1196 states have internal predecessors, (1440), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-23 03:59:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2248 transitions. [2022-07-23 03:59:32,144 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2248 transitions. Word has length 201 [2022-07-23 03:59:32,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:59:32,146 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2248 transitions. [2022-07-23 03:59:32,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 03:59:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2248 transitions. [2022-07-23 03:59:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-23 03:59:32,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:59:32,151 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:59:32,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 03:59:32,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 03:59:32,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:59:32,152 INFO L85 PathProgramCache]: Analyzing trace with hash -281687607, now seen corresponding path program 1 times [2022-07-23 03:59:32,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 03:59:32,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299136580] [2022-07-23 03:59:32,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:59:32,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 03:59:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 03:59:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 03:59:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 03:59:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 03:59:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 03:59:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 03:59:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 03:59:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 03:59:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 03:59:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 03:59:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 03:59:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 03:59:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 03:59:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 03:59:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 03:59:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 03:59:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 03:59:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 03:59:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 03:59:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 03:59:32,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 03:59:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299136580] [2022-07-23 03:59:32,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299136580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:59:32,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:59:32,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 03:59:32,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309757931] [2022-07-23 03:59:32,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:59:32,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:59:32,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 03:59:32,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:59:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 03:59:32,612 INFO L87 Difference]: Start difference. First operand 1679 states and 2248 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 03:59:35,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:38,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:40,221 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 [] [2022-07-23 03:59:42,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:59:42,151 INFO L93 Difference]: Finished difference Result 2170 states and 2906 transitions. [2022-07-23 03:59:42,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 03:59:42,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 201 [2022-07-23 03:59:42,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:59:42,163 INFO L225 Difference]: With dead ends: 2170 [2022-07-23 03:59:42,163 INFO L226 Difference]: Without dead ends: 1759 [2022-07-23 03:59:42,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:59:42,168 INFO L413 NwaCegarLoop]: 2081 mSDtfsCounter, 1201 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 1091 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-07-23 03:59:42,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 4806 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 2097 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2022-07-23 03:59:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-23 03:59:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-23 03:59:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.239448751076658) internal successors, (1439), 1196 states have internal predecessors, (1439), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-23 03:59:42,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2247 transitions. [2022-07-23 03:59:42,241 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2247 transitions. Word has length 201 [2022-07-23 03:59:42,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:59:42,242 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2247 transitions. [2022-07-23 03:59:42,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 03:59:42,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2247 transitions. [2022-07-23 03:59:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-23 03:59:42,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:59:42,247 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:59:42,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 03:59:42,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 03:59:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:59:42,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2069209573, now seen corresponding path program 1 times [2022-07-23 03:59:42,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 03:59:42,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011427248] [2022-07-23 03:59:42,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:59:42,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 03:59:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 03:59:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 03:59:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 03:59:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 03:59:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 03:59:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 03:59:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 03:59:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 03:59:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 03:59:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 03:59:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-23 03:59:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 03:59:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 03:59:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 03:59:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 03:59:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 03:59:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-23 03:59:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-23 03:59:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-23 03:59:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-23 03:59:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-23 03:59:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-23 03:59:42,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 03:59:42,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011427248] [2022-07-23 03:59:42,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011427248] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:59:42,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:59:42,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 03:59:42,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683373106] [2022-07-23 03:59:42,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:59:42,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 03:59:42,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 03:59:42,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 03:59:42,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 03:59:42,913 INFO L87 Difference]: Start difference. First operand 1679 states and 2247 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 03:59:45,642 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 [] [2022-07-23 03:59:48,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:51,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:52,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:59:52,812 INFO L93 Difference]: Finished difference Result 3415 states and 4600 transitions. [2022-07-23 03:59:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:59:52,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 227 [2022-07-23 03:59:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:59:52,824 INFO L225 Difference]: With dead ends: 3415 [2022-07-23 03:59:52,825 INFO L226 Difference]: Without dead ends: 1759 [2022-07-23 03:59:52,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-23 03:59:52,835 INFO L413 NwaCegarLoop]: 2075 mSDtfsCounter, 2873 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 1526 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3115 SdHoareTripleChecker+Valid, 4550 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1526 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-07-23 03:59:52,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3115 Valid, 4550 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1526 Valid, 2358 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2022-07-23 03:59:52,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-23 03:59:52,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-23 03:59:52,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2385874246339363) internal successors, (1438), 1196 states have internal predecessors, (1438), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-23 03:59:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2246 transitions. [2022-07-23 03:59:52,907 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2246 transitions. Word has length 227 [2022-07-23 03:59:52,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:59:52,908 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2246 transitions. [2022-07-23 03:59:52,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 03:59:52,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2246 transitions. [2022-07-23 03:59:52,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-23 03:59:52,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:59:52,912 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:59:52,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 03:59:52,913 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 03:59:52,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:59:52,913 INFO L85 PathProgramCache]: Analyzing trace with hash 556520760, now seen corresponding path program 1 times [2022-07-23 03:59:52,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 03:59:52,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001673869] [2022-07-23 03:59:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:59:52,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 03:59:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 03:59:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 03:59:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 03:59:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 03:59:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 03:59:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 03:59:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 03:59:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 03:59:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 03:59:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 03:59:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 03:59:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 03:59:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 03:59:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 03:59:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 03:59:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 03:59:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 03:59:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 03:59:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 03:59:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 03:59:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 03:59:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 03:59:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:59:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 03:59:53,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 03:59:53,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001673869] [2022-07-23 03:59:53,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001673869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:59:53,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:59:53,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 03:59:53,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911926438] [2022-07-23 03:59:53,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:59:53,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 03:59:53,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 03:59:53,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 03:59:53,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:59:53,497 INFO L87 Difference]: Start difference. First operand 1679 states and 2246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 03:59:56,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 03:59:58,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:01,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:03,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:05,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:09,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:00:12,115 INFO L93 Difference]: Finished difference Result 3415 states and 4598 transitions. [2022-07-23 04:00:12,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:00:12,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 202 [2022-07-23 04:00:12,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:00:12,125 INFO L225 Difference]: With dead ends: 3415 [2022-07-23 04:00:12,125 INFO L226 Difference]: Without dead ends: 1759 [2022-07-23 04:00:12,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-23 04:00:12,131 INFO L413 NwaCegarLoop]: 2073 mSDtfsCounter, 4113 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 2901 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 5264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-07-23 04:00:12,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 4548 Invalid, 5264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2357 Invalid, 6 Unknown, 0 Unchecked, 18.3s Time] [2022-07-23 04:00:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-23 04:00:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-23 04:00:12,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2377260981912144) internal successors, (1437), 1196 states have internal predecessors, (1437), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-23 04:00:12,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2245 transitions. [2022-07-23 04:00:12,202 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2245 transitions. Word has length 202 [2022-07-23 04:00:12,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:00:12,203 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2245 transitions. [2022-07-23 04:00:12,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:00:12,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2245 transitions. [2022-07-23 04:00:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-23 04:00:12,207 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:00:12,207 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:00:12,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 04:00:12,208 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:00:12,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:00:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash 825450679, now seen corresponding path program 1 times [2022-07-23 04:00:12,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:00:12,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346074180] [2022-07-23 04:00:12,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:00:12,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:00:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:00:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:00:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:00:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:00:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:00:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 04:00:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 04:00:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 04:00:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 04:00:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 04:00:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-23 04:00:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 04:00:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 04:00:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:00:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:00:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:00:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-23 04:00:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-23 04:00:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-23 04:00:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-23 04:00:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-23 04:00:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-23 04:00:12,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:00:12,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346074180] [2022-07-23 04:00:12,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346074180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:00:12,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:00:12,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 04:00:12,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53598623] [2022-07-23 04:00:12,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:00:12,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 04:00:12,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:00:12,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 04:00:12,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:00:12,768 INFO L87 Difference]: Start difference. First operand 1679 states and 2245 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 04:00:15,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:17,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:20,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:22,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:00:24,816 INFO L93 Difference]: Finished difference Result 3415 states and 4596 transitions. [2022-07-23 04:00:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:00:24,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 229 [2022-07-23 04:00:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:00:24,826 INFO L225 Difference]: With dead ends: 3415 [2022-07-23 04:00:24,826 INFO L226 Difference]: Without dead ends: 1759 [2022-07-23 04:00:24,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-23 04:00:24,832 INFO L413 NwaCegarLoop]: 2072 mSDtfsCounter, 4106 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4106 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 5258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2898 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-07-23 04:00:24,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4106 Valid, 4547 Invalid, 5258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2356 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2022-07-23 04:00:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-23 04:00:24,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-23 04:00:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2368647717484926) internal successors, (1436), 1196 states have internal predecessors, (1436), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-23 04:00:24,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2244 transitions. [2022-07-23 04:00:24,905 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2244 transitions. Word has length 229 [2022-07-23 04:00:24,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:00:24,906 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2244 transitions. [2022-07-23 04:00:24,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 04:00:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2244 transitions. [2022-07-23 04:00:24,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-23 04:00:24,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:00:24,910 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:00:24,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 04:00:24,910 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:00:24,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:00:24,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1818144712, now seen corresponding path program 1 times [2022-07-23 04:00:24,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:00:24,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523356137] [2022-07-23 04:00:24,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:00:24,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:00:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:00:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:00:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:00:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:00:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:00:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 04:00:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 04:00:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 04:00:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 04:00:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 04:00:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 04:00:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 04:00:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:00:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:00:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:00:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 04:00:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 04:00:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 04:00:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 04:00:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 04:00:25,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:00:25,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523356137] [2022-07-23 04:00:25,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523356137] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:00:25,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:00:25,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 04:00:25,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237562145] [2022-07-23 04:00:25,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:00:25,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 04:00:25,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:00:25,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 04:00:25,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:00:25,434 INFO L87 Difference]: Start difference. First operand 1679 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:00:28,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:30,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:33,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:35,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:00:37,639 INFO L93 Difference]: Finished difference Result 3534 states and 4744 transitions. [2022-07-23 04:00:37,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 04:00:37,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 204 [2022-07-23 04:00:37,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:00:37,652 INFO L225 Difference]: With dead ends: 3534 [2022-07-23 04:00:37,653 INFO L226 Difference]: Without dead ends: 1878 [2022-07-23 04:00:37,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-07-23 04:00:37,661 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 4194 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 3019 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4194 SdHoareTripleChecker+Valid, 4600 SdHoareTripleChecker+Invalid, 5610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3019 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-07-23 04:00:37,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4194 Valid, 4600 Invalid, 5610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3019 Valid, 2587 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2022-07-23 04:00:37,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-07-23 04:00:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1758. [2022-07-23 04:00:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2308956450287591) internal successors, (1498), 1253 states have internal predecessors, (1498), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-23 04:00:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2332 transitions. [2022-07-23 04:00:37,767 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2332 transitions. Word has length 204 [2022-07-23 04:00:37,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:00:37,768 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2332 transitions. [2022-07-23 04:00:37,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:00:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2332 transitions. [2022-07-23 04:00:37,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-23 04:00:37,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:00:37,773 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:00:37,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 04:00:37,774 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:00:37,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:00:37,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2081127351, now seen corresponding path program 1 times [2022-07-23 04:00:37,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:00:37,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369275442] [2022-07-23 04:00:37,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:00:37,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:00:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:37,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:37,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:00:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:37,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:00:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:00:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:00:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:00:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 04:00:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 04:00:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 04:00:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 04:00:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 04:00:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 04:00:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 04:00:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:00:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:00:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:00:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 04:00:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 04:00:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 04:00:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 04:00:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:38,254 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 04:00:38,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:00:38,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369275442] [2022-07-23 04:00:38,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369275442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:00:38,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:00:38,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 04:00:38,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877084133] [2022-07-23 04:00:38,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:00:38,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 04:00:38,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:00:38,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 04:00:38,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:00:38,258 INFO L87 Difference]: Start difference. First operand 1758 states and 2332 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:00:41,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:43,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:46,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:48,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:50,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:52,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:54,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:00:54,678 INFO L93 Difference]: Finished difference Result 3613 states and 4831 transitions. [2022-07-23 04:00:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 04:00:54,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 205 [2022-07-23 04:00:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:00:54,689 INFO L225 Difference]: With dead ends: 3613 [2022-07-23 04:00:54,689 INFO L226 Difference]: Without dead ends: 1878 [2022-07-23 04:00:54,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-07-23 04:00:54,696 INFO L413 NwaCegarLoop]: 2124 mSDtfsCounter, 4189 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 3019 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4189 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 5611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3019 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2022-07-23 04:00:54,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4189 Valid, 4599 Invalid, 5611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3019 Valid, 2586 Invalid, 6 Unknown, 0 Unchecked, 16.0s Time] [2022-07-23 04:00:54,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-07-23 04:00:54,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1758. [2022-07-23 04:00:54,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2300739523418243) internal successors, (1497), 1253 states have internal predecessors, (1497), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-23 04:00:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2331 transitions. [2022-07-23 04:00:54,783 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2331 transitions. Word has length 205 [2022-07-23 04:00:54,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:00:54,784 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2331 transitions. [2022-07-23 04:00:54,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:00:54,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2331 transitions. [2022-07-23 04:00:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-23 04:00:54,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:00:54,788 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:00:54,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 04:00:54,788 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:00:54,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:00:54,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1409208020, now seen corresponding path program 1 times [2022-07-23 04:00:54,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:00:54,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300330329] [2022-07-23 04:00:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:00:54,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:00:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:54,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:54,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:00:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:00:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:00:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:00:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:00:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 04:00:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 04:00:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 04:00:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 04:00:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 04:00:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:00:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:00:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-23 04:00:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 04:00:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 04:00:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:00:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:00:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:00:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-23 04:00:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-23 04:00:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:00:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-23 04:00:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-23 04:00:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-23 04:00:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:00:55,265 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-23 04:00:55,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:00:55,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300330329] [2022-07-23 04:00:55,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300330329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:00:55,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:00:55,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 04:00:55,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546084731] [2022-07-23 04:00:55,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:00:55,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 04:00:55,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:00:55,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 04:00:55,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:00:55,269 INFO L87 Difference]: Start difference. First operand 1758 states and 2331 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 04:00:57,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:00:59,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:02,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:05,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:06,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:01:06,868 INFO L93 Difference]: Finished difference Result 3607 states and 4817 transitions. [2022-07-23 04:01:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:01:06,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 232 [2022-07-23 04:01:06,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:01:06,878 INFO L225 Difference]: With dead ends: 3607 [2022-07-23 04:01:06,879 INFO L226 Difference]: Without dead ends: 1872 [2022-07-23 04:01:06,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-23 04:01:06,886 INFO L413 NwaCegarLoop]: 2069 mSDtfsCounter, 4091 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 4544 SdHoareTripleChecker+Invalid, 5255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2898 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-07-23 04:01:06,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 4544 Invalid, 5255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2353 Invalid, 4 Unknown, 0 Unchecked, 11.4s Time] [2022-07-23 04:01:06,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-23 04:01:06,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-23 04:01:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2292522596548892) internal successors, (1496), 1253 states have internal predecessors, (1496), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-23 04:01:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2330 transitions. [2022-07-23 04:01:06,982 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2330 transitions. Word has length 232 [2022-07-23 04:01:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:01:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2330 transitions. [2022-07-23 04:01:06,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 04:01:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2330 transitions. [2022-07-23 04:01:06,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-23 04:01:06,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:01:06,987 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:01:06,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 04:01:06,987 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:01:06,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:01:06,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1892508177, now seen corresponding path program 1 times [2022-07-23 04:01:06,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:01:06,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783848588] [2022-07-23 04:01:06,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:01:06,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:01:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:01:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:01:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:01:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:01:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:01:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 04:01:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 04:01:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 04:01:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 04:01:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 04:01:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-23 04:01:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 04:01:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 04:01:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:01:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:01:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:01:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-23 04:01:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-23 04:01:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-23 04:01:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-23 04:01:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-23 04:01:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:07,520 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-23 04:01:07,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:01:07,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783848588] [2022-07-23 04:01:07,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783848588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:01:07,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:01:07,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 04:01:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77331217] [2022-07-23 04:01:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:01:07,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 04:01:07,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:01:07,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 04:01:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:01:07,523 INFO L87 Difference]: Start difference. First operand 1758 states and 2330 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 04:01:10,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:12,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:15,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:17,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:19,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:01:19,218 INFO L93 Difference]: Finished difference Result 3607 states and 4815 transitions. [2022-07-23 04:01:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:01:19,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 233 [2022-07-23 04:01:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:01:19,225 INFO L225 Difference]: With dead ends: 3607 [2022-07-23 04:01:19,225 INFO L226 Difference]: Without dead ends: 1872 [2022-07-23 04:01:19,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-23 04:01:19,229 INFO L413 NwaCegarLoop]: 2068 mSDtfsCounter, 4086 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 5254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2898 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-07-23 04:01:19,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4086 Valid, 4543 Invalid, 5254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2352 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2022-07-23 04:01:19,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-23 04:01:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-23 04:01:19,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.228430566967954) internal successors, (1495), 1253 states have internal predecessors, (1495), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-23 04:01:19,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2329 transitions. [2022-07-23 04:01:19,327 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2329 transitions. Word has length 233 [2022-07-23 04:01:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:01:19,328 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2329 transitions. [2022-07-23 04:01:19,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 04:01:19,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2329 transitions. [2022-07-23 04:01:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-23 04:01:19,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:01:19,334 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:01:19,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 04:01:19,334 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:01:19,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:01:19,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1645263744, now seen corresponding path program 1 times [2022-07-23 04:01:19,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:01:19,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199686668] [2022-07-23 04:01:19,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:01:19,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:01:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:01:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:01:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:01:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:01:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:01:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 04:01:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 04:01:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 04:01:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 04:01:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 04:01:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 04:01:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 04:01:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:01:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:01:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:01:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 04:01:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 04:01:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 04:01:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 04:01:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 04:01:19,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:01:19,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199686668] [2022-07-23 04:01:19,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199686668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:01:19,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:01:19,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 04:01:19,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273987578] [2022-07-23 04:01:19,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:01:19,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 04:01:19,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:01:19,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 04:01:19,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:01:19,799 INFO L87 Difference]: Start difference. First operand 1758 states and 2329 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:01:22,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:24,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:27,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:29,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:31,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:33,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:35,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:01:35,635 INFO L93 Difference]: Finished difference Result 3607 states and 4813 transitions. [2022-07-23 04:01:35,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:01:35,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 208 [2022-07-23 04:01:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:01:35,645 INFO L225 Difference]: With dead ends: 3607 [2022-07-23 04:01:35,645 INFO L226 Difference]: Without dead ends: 1872 [2022-07-23 04:01:35,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-23 04:01:35,652 INFO L413 NwaCegarLoop]: 2067 mSDtfsCounter, 4083 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 2901 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 5258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-07-23 04:01:35,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 4542 Invalid, 5258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2352 Invalid, 5 Unknown, 0 Unchecked, 15.6s Time] [2022-07-23 04:01:35,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-23 04:01:35,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-23 04:01:35,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.227608874281019) internal successors, (1494), 1253 states have internal predecessors, (1494), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-23 04:01:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2328 transitions. [2022-07-23 04:01:35,749 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2328 transitions. Word has length 208 [2022-07-23 04:01:35,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:01:35,749 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2328 transitions. [2022-07-23 04:01:35,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:01:35,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2328 transitions. [2022-07-23 04:01:35,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-23 04:01:35,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:01:35,753 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:01:35,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 04:01:35,753 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:01:35,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:01:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1064651025, now seen corresponding path program 1 times [2022-07-23 04:01:35,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:01:35,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196537883] [2022-07-23 04:01:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:01:35,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:01:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:01:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:01:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:01:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:01:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:01:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 04:01:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 04:01:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 04:01:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 04:01:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 04:01:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 04:01:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 04:01:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:01:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:01:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:01:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 04:01:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 04:01:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 04:01:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 04:01:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 04:01:36,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:01:36,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196537883] [2022-07-23 04:01:36,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196537883] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:01:36,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:01:36,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 04:01:36,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938803021] [2022-07-23 04:01:36,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:01:36,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 04:01:36,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:01:36,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 04:01:36,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:01:36,247 INFO L87 Difference]: Start difference. First operand 1758 states and 2328 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:01:38,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:40,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:43,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:45,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:48,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:50,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:52,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:01:52,026 INFO L93 Difference]: Finished difference Result 3607 states and 4811 transitions. [2022-07-23 04:01:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:01:52,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 209 [2022-07-23 04:01:52,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:01:52,034 INFO L225 Difference]: With dead ends: 3607 [2022-07-23 04:01:52,034 INFO L226 Difference]: Without dead ends: 1872 [2022-07-23 04:01:52,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-23 04:01:52,039 INFO L413 NwaCegarLoop]: 2066 mSDtfsCounter, 4078 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 2901 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 5257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-07-23 04:01:52,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 4541 Invalid, 5257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2350 Invalid, 6 Unknown, 0 Unchecked, 15.5s Time] [2022-07-23 04:01:52,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-23 04:01:52,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-23 04:01:52,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2267871815940838) internal successors, (1493), 1253 states have internal predecessors, (1493), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-23 04:01:52,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2327 transitions. [2022-07-23 04:01:52,137 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2327 transitions. Word has length 209 [2022-07-23 04:01:52,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:01:52,137 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2327 transitions. [2022-07-23 04:01:52,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:01:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2327 transitions. [2022-07-23 04:01:52,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-23 04:01:52,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:01:52,142 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:01:52,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-23 04:01:52,142 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:01:52,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:01:52,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1198400860, now seen corresponding path program 1 times [2022-07-23 04:01:52,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:01:52,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704859180] [2022-07-23 04:01:52,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:01:52,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:01:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:01:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:01:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:01:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:01:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:01:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 04:01:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 04:01:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 04:01:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:01:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:01:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 04:01:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-23 04:01:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 04:01:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 04:01:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:01:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:01:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:01:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 04:01:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:01:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 04:01:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 04:01:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-23 04:01:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:01:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 04:01:52,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:01:52,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704859180] [2022-07-23 04:01:52,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704859180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:01:52,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:01:52,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 04:01:52,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400629702] [2022-07-23 04:01:52,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:01:52,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 04:01:52,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:01:52,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 04:01:52,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:01:52,533 INFO L87 Difference]: Start difference. First operand 1758 states and 2327 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:01:55,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:01:57,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:00,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:02,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:04,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:06,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:08,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:02:08,286 INFO L93 Difference]: Finished difference Result 3607 states and 4809 transitions. [2022-07-23 04:02:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:02:08,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 210 [2022-07-23 04:02:08,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:02:08,294 INFO L225 Difference]: With dead ends: 3607 [2022-07-23 04:02:08,294 INFO L226 Difference]: Without dead ends: 1872 [2022-07-23 04:02:08,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-23 04:02:08,299 INFO L413 NwaCegarLoop]: 2065 mSDtfsCounter, 4073 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 2901 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 5256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-07-23 04:02:08,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4073 Valid, 4540 Invalid, 5256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2349 Invalid, 6 Unknown, 0 Unchecked, 15.5s Time] [2022-07-23 04:02:08,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-23 04:02:08,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-23 04:02:08,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2259654889071487) internal successors, (1492), 1253 states have internal predecessors, (1492), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-23 04:02:08,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2326 transitions. [2022-07-23 04:02:08,433 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2326 transitions. Word has length 210 [2022-07-23 04:02:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:02:08,434 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2326 transitions. [2022-07-23 04:02:08,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 04:02:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2326 transitions. [2022-07-23 04:02:08,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-23 04:02:08,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:02:08,438 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:02:08,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 04:02:08,438 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:02:08,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:02:08,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1617656615, now seen corresponding path program 1 times [2022-07-23 04:02:08,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:02:08,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918935186] [2022-07-23 04:02:08,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:02:08,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:02:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:02:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 04:02:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:02:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 04:02:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 04:02:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:02:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:02:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 04:02:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-23 04:02:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:02:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:02:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 04:02:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 04:02:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:02:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:02:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 04:02:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 04:02:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:02:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:02:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-23 04:02:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 04:02:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 04:02:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 04:02:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:02:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:02:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-23 04:02:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-23 04:02:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-23 04:02:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-23 04:02:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-23 04:02:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-07-23 04:02:09,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:02:09,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918935186] [2022-07-23 04:02:09,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918935186] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 04:02:09,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541844044] [2022-07-23 04:02:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:02:09,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 04:02:09,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 04:02:09,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 04:02:09,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 04:02:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:10,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 2917 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-23 04:02:10,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:02:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-07-23 04:02:10,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:02:10,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541844044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:02:10,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:02:10,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 21 [2022-07-23 04:02:10,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015282699] [2022-07-23 04:02:10,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:02:10,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 04:02:10,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:02:10,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 04:02:10,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-07-23 04:02:10,572 INFO L87 Difference]: Start difference. First operand 1758 states and 2326 transitions. Second operand has 12 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-23 04:02:11,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:02:11,153 INFO L93 Difference]: Finished difference Result 2262 states and 2951 transitions. [2022-07-23 04:02:11,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 04:02:11,154 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 237 [2022-07-23 04:02:11,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:02:11,163 INFO L225 Difference]: With dead ends: 2262 [2022-07-23 04:02:11,163 INFO L226 Difference]: Without dead ends: 1758 [2022-07-23 04:02:11,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2022-07-23 04:02:11,167 INFO L413 NwaCegarLoop]: 2207 mSDtfsCounter, 15 mSDsluCounter, 21987 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 24194 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 04:02:11,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 24194 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 04:02:11,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2022-07-23 04:02:11,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1758. [2022-07-23 04:02:11,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2243221035332785) internal successors, (1490), 1253 states have internal predecessors, (1490), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-23 04:02:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2324 transitions. [2022-07-23 04:02:11,279 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2324 transitions. Word has length 237 [2022-07-23 04:02:11,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:02:11,279 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2324 transitions. [2022-07-23 04:02:11,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-23 04:02:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2324 transitions. [2022-07-23 04:02:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-23 04:02:11,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:02:11,283 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:02:11,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 04:02:11,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-23 04:02:11,512 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:02:11,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:02:11,512 INFO L85 PathProgramCache]: Analyzing trace with hash 16756898, now seen corresponding path program 1 times [2022-07-23 04:02:11,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 04:02:11,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958418962] [2022-07-23 04:02:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:02:11,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 04:02:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 04:02:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 04:02:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 04:02:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 04:02:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-23 04:02:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 04:02:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-23 04:02:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:02:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:02:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 04:02:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 04:02:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:02:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:02:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 04:02:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-23 04:02:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 04:02:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 04:02:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 04:02:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 04:02:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 04:02:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-23 04:02:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-23 04:02:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 04:02:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-23 04:02:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-23 04:02:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 04:02:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-23 04:02:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-23 04:02:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 04:02:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:12,882 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 04:02:12,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 04:02:12,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958418962] [2022-07-23 04:02:12,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958418962] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 04:02:12,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822444366] [2022-07-23 04:02:12,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:02:12,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 04:02:12,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 04:02:12,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 04:02:12,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 04:02:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:02:13,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 2930 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-23 04:02:13,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:02:13,944 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-07-23 04:02:13,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:02:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-23 04:02:14,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822444366] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 04:02:14,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 04:02:14,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 20 [2022-07-23 04:02:14,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529240318] [2022-07-23 04:02:14,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 04:02:14,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-23 04:02:14,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 04:02:14,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-23 04:02:14,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2022-07-23 04:02:14,215 INFO L87 Difference]: Start difference. First operand 1758 states and 2324 transitions. Second operand has 20 states, 19 states have (on average 8.736842105263158) internal successors, (166), 16 states have internal predecessors, (166), 7 states have call successors, (60), 4 states have call predecessors, (60), 5 states have return successors, (53), 7 states have call predecessors, (53), 7 states have call successors, (53) [2022-07-23 04:02:20,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:22,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:24,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:26,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:28,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:30,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:32,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:35,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:37,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:39,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:41,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:43,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:45,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:50,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:52,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:54,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:56,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:02:58,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []