./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 35987657 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-?-3598765 [2022-07-21 15:15:02,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:15:02,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:15:02,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:15:02,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:15:02,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:15:02,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:15:02,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:15:02,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:15:02,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:15:02,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:15:02,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:15:02,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:15:02,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:15:02,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:15:02,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:15:02,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:15:02,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:15:02,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:15:02,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:15:02,594 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:15:02,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:15:02,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:15:02,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:15:02,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:15:02,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:15:02,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:15:02,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:15:02,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:15:02,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:15:02,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:15:02,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:15:02,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:15:02,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:15:02,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:15:02,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:15:02,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:15:02,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:15:02,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:15:02,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:15:02,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:15:02,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:15:02,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:15:02,667 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:15:02,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:15:02,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:15:02,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:15:02,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:15:02,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:15:02,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:15:02,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:15:02,670 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:15:02,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:15:02,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:15:02,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:15:02,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:15:02,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:15:02,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:15:02,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:15:02,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:15:02,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:15:02,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:15:02,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:15:02,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:15:02,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:15:02,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:15:02,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:15:02,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:15:02,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:15:02,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:15:02,676 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:15:02,676 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:15:02,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:15:02,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2022-07-21 15:15:02,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:15:03,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:15:03,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:15:03,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:15:03,006 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:15:03,007 INFO L432 ainManager$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 [2022-07-21 15:15:03,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79048feb/fc14b61a0cdc407f9ff5f537a11f9a93/FLAG081c1138c [2022-07-21 15:15:03,906 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:15:03,906 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 [2022-07-21 15:15:03,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79048feb/fc14b61a0cdc407f9ff5f537a11f9a93/FLAG081c1138c [2022-07-21 15:15:04,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79048feb/fc14b61a0cdc407f9ff5f537a11f9a93 [2022-07-21 15:15:04,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:15:04,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:15:04,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:15:04,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:15:04,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:15:04,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:15:04" (1/1) ... [2022-07-21 15:15:04,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16925268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:04, skipping insertion in model container [2022-07-21 15:15:04,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:15:04" (1/1) ... [2022-07-21 15:15:04,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:15:04,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:15:07,454 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] [2022-07-21 15:15:07,457 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] [2022-07-21 15:15:07,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:15:07,549 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:15:07,886 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] [2022-07-21 15:15:07,887 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] [2022-07-21 15:15:07,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:15:08,264 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:15:08,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08 WrapperNode [2022-07-21 15:15:08,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:15:08,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:15:08,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:15:08,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:15:08,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,571 INFO L137 Inliner]: procedures = 547, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 5036 [2022-07-21 15:15:08,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:15:08,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:15:08,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:15:08,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:15:08,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:15:08,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:15:08,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:15:08,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:15:08,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (1/1) ... [2022-07-21 15:15:08,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:15:08,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:15:08,913 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) [2022-07-21 15:15:08,920 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 [2022-07-21 15:15:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-07-21 15:15:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-07-21 15:15:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:15:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:15:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-21 15:15:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-21 15:15:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-21 15:15:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-21 15:15:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:15:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:15:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2022-07-21 15:15:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2022-07-21 15:15:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-07-21 15:15:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-07-21 15:15:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 15:15:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 15:15:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2022-07-21 15:15:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2022-07-21 15:15:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 15:15:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 15:15:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-07-21 15:15:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-07-21 15:15:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2022-07-21 15:15:08,954 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2022-07-21 15:15:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-07-21 15:15:08,954 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-07-21 15:15:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-07-21 15:15:08,954 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-07-21 15:15:08,954 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-07-21 15:15:08,954 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-07-21 15:15:08,955 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 15:15:08,955 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 15:15:08,955 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-07-21 15:15:08,955 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-07-21 15:15:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-07-21 15:15:08,956 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-07-21 15:15:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:15:08,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:15:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 15:15:08,956 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 15:15:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:15:08,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:15:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-07-21 15:15:08,957 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-07-21 15:15:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:15:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-21 15:15:08,957 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-21 15:15:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-07-21 15:15:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-07-21 15:15:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-07-21 15:15:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-07-21 15:15:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 15:15:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 15:15:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 15:15:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-07-21 15:15:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-07-21 15:15:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-07-21 15:15:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-07-21 15:15:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-21 15:15:08,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-21 15:15:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 15:15:08,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 15:15:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 15:15:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:15:08,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:15:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-07-21 15:15:08,963 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-07-21 15:15:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 15:15:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 15:15:08,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 15:15:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 15:15:08,964 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 15:15:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 15:15:08,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 15:15:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2022-07-21 15:15:08,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2022-07-21 15:15:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 15:15:08,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 15:15:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-07-21 15:15:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-07-21 15:15:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 15:15:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 15:15:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-07-21 15:15:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-07-21 15:15:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2022-07-21 15:15:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2022-07-21 15:15:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2022-07-21 15:15:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2022-07-21 15:15:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-21 15:15:08,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-21 15:15:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:15:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:15:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:15:08,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:15:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:15:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-21 15:15:08,968 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-21 15:15:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-07-21 15:15:08,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-07-21 15:15:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-07-21 15:15:08,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-07-21 15:15:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-07-21 15:15:08,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-07-21 15:15:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-07-21 15:15:08,969 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-07-21 15:15:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 15:15:08,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 15:15:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 15:15:08,970 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 15:15:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 15:15:08,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 15:15:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-21 15:15:08,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-21 15:15:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 15:15:08,971 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 15:15:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-07-21 15:15:08,972 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-07-21 15:15:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:15:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:15:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 15:15:08,975 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 15:15:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 15:15:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 15:15:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:15:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:15:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-07-21 15:15:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-07-21 15:15:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-07-21 15:15:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-07-21 15:15:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-07-21 15:15:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-07-21 15:15:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 15:15:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 15:15:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 15:15:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 15:15:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-07-21 15:15:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-07-21 15:15:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-07-21 15:15:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-07-21 15:15:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 15:15:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 15:15:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 15:15:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 15:15:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-07-21 15:15:08,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-07-21 15:15:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-07-21 15:15:08,984 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-07-21 15:15:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-21 15:15:08,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-21 15:15:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:15:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-07-21 15:15:08,984 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-07-21 15:15:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-07-21 15:15:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-07-21 15:15:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2022-07-21 15:15:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2022-07-21 15:15:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-07-21 15:15:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-07-21 15:15:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:15:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-21 15:15:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-21 15:15:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2022-07-21 15:15:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2022-07-21 15:15:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-07-21 15:15:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-07-21 15:15:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:15:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-21 15:15:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-21 15:15:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-07-21 15:15:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-07-21 15:15:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-07-21 15:15:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-07-21 15:15:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 15:15:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 15:15:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:15:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:15:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-07-21 15:15:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-07-21 15:15:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-07-21 15:15:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-07-21 15:15:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-21 15:15:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-21 15:15:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2022-07-21 15:15:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2022-07-21 15:15:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-07-21 15:15:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-07-21 15:15:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-07-21 15:15:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-07-21 15:15:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-07-21 15:15:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-07-21 15:15:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 15:15:08,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 15:15:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 15:15:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 15:15:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-07-21 15:15:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-07-21 15:15:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-07-21 15:15:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-07-21 15:15:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 15:15:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 15:15:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 15:15:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 15:15:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-07-21 15:15:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-07-21 15:15:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 15:15:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-21 15:15:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-21 15:15:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:15:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:15:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-07-21 15:15:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-07-21 15:15:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 15:15:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 15:15:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2022-07-21 15:15:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2022-07-21 15:15:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2022-07-21 15:15:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2022-07-21 15:15:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 15:15:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 15:15:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-07-21 15:15:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-07-21 15:15:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2022-07-21 15:15:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2022-07-21 15:15:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2022-07-21 15:15:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2022-07-21 15:15:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-21 15:15:08,996 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-21 15:15:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-21 15:15:08,996 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-21 15:15:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:15:08,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:15:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2022-07-21 15:15:08,996 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2022-07-21 15:15:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2022-07-21 15:15:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2022-07-21 15:15:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 15:15:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 15:15:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 15:15:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-21 15:15:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-21 15:15:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-07-21 15:15:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-07-21 15:15:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-07-21 15:15:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-07-21 15:15:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-07-21 15:15:09,001 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-07-21 15:15:09,825 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:15:09,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:15:09,987 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:15:16,574 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:15:16,602 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:15:16,602 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 15:15:16,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:15:16 BoogieIcfgContainer [2022-07-21 15:15:16,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:15:16,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:15:16,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:15:16,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:15:16,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:15:04" (1/3) ... [2022-07-21 15:15:16,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73965c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:15:16, skipping insertion in model container [2022-07-21 15:15:16,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:08" (2/3) ... [2022-07-21 15:15:16,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73965c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:15:16, skipping insertion in model container [2022-07-21 15:15:16,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:15:16" (3/3) ... [2022-07-21 15:15:16,618 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-07-21 15:15:16,635 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:15:16,635 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 15:15:16,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:15:16,748 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@3fa0fec5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2fcbb577 [2022-07-21 15:15:16,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 15:15:16,758 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) [2022-07-21 15:15:16,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-21 15:15:16,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:15:16,800 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] [2022-07-21 15:15:16,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:15:16,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:15:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash -254622005, now seen corresponding path program 1 times [2022-07-21 15:15:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:15:16,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148835352] [2022-07-21 15:15:16,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:15:16,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:15:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:15:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:15:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:15:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:15:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:15:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:15:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:15:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:15:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:15:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:15:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:15:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:15:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:15:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:15:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:15:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:17,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:15:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:18,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:18,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:15:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:18,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:15:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:15:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:15:18,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:15:18,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148835352] [2022-07-21 15:15:18,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148835352] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:15:18,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:15:18,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:15:18,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800837061] [2022-07-21 15:15:18,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:15:18,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:15:18,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:15:18,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:15:18,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:15:18,114 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) [2022-07-21 15:15:21,152 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 [] [2022-07-21 15:15:23,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:15:26,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:15:28,473 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 [] [2022-07-21 15:15:30,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:15:30,449 INFO L93 Difference]: Finished difference Result 3492 states and 4827 transitions. [2022-07-21 15:15:30,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:15:30,451 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 [2022-07-21 15:15:30,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:15:30,478 INFO L225 Difference]: With dead ends: 3492 [2022-07-21 15:15:30,478 INFO L226 Difference]: Without dead ends: 1761 [2022-07-21 15:15:30,491 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 [2022-07-21 15:15:30,494 INFO L413 NwaCegarLoop]: 2126 mSDtfsCounter, 1203 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 1168 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 4911 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1168 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:15:30,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 4911 Invalid, 3335 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1168 Valid, 2163 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2022-07-21 15:15:30,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-07-21 15:15:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1679. [2022-07-21 15:15:30,684 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) [2022-07-21 15:15:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2249 transitions. [2022-07-21 15:15:30,704 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2249 transitions. Word has length 201 [2022-07-21 15:15:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:15:30,706 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2249 transitions. [2022-07-21 15:15:30,706 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) [2022-07-21 15:15:30,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2249 transitions. [2022-07-21 15:15:30,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-21 15:15:30,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:15:30,720 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] [2022-07-21 15:15:30,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 15:15:30,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:15:30,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:15:30,723 INFO L85 PathProgramCache]: Analyzing trace with hash 90433789, now seen corresponding path program 1 times [2022-07-21 15:15:30,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:15:30,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955509666] [2022-07-21 15:15:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:15:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:15:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:30,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:30,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:15:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:15:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:15:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:15:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:15:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:15:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:15:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:15:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:15:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:15:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:15:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:15:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:15:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:15:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:15:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:15:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:15:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:15:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:15:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:15:31,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:15:31,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955509666] [2022-07-21 15:15:31,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955509666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:15:31,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:15:31,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:15:31,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13448025] [2022-07-21 15:15:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:15:31,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:15:31,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:15:31,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:15:31,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:15:31,279 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) [2022-07-21 15:15:33,876 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 [] [2022-07-21 15:15:35,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:15:39,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:15:41,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:15:43,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:15:45,261 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 [] [2022-07-21 15:15:47,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:15:47,267 INFO L93 Difference]: Finished difference Result 2170 states and 2908 transitions. [2022-07-21 15:15:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:15:47,268 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 [2022-07-21 15:15:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:15:47,278 INFO L225 Difference]: With dead ends: 2170 [2022-07-21 15:15:47,279 INFO L226 Difference]: Without dead ends: 1759 [2022-07-21 15:15:47,281 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 [2022-07-21 15:15:47,282 INFO L413 NwaCegarLoop]: 2082 mSDtfsCounter, 1202 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 1091 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 4809 SdHoareTripleChecker+Invalid, 3193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-07-21 15:15:47,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 4809 Invalid, 3193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 2097 Invalid, 5 Unknown, 0 Unchecked, 15.8s Time] [2022-07-21 15:15:47,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-21 15:15:47,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-21 15:15:47,341 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) [2022-07-21 15:15:47,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2248 transitions. [2022-07-21 15:15:47,351 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2248 transitions. Word has length 201 [2022-07-21 15:15:47,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:15:47,352 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2248 transitions. [2022-07-21 15:15:47,352 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) [2022-07-21 15:15:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2248 transitions. [2022-07-21 15:15:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-21 15:15:47,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:15:47,359 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] [2022-07-21 15:15:47,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 15:15:47,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:15:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:15:47,360 INFO L85 PathProgramCache]: Analyzing trace with hash -281687607, now seen corresponding path program 1 times [2022-07-21 15:15:47,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:15:47,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086130431] [2022-07-21 15:15:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:15:47,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:15:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:15:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:15:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:15:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:15:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:15:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:15:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:15:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:15:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:15:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:15:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:15:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:15:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:15:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:15:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:15:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:15:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:15:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:15:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:15:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:15:47,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:15:47,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086130431] [2022-07-21 15:15:47,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086130431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:15:47,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:15:47,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:15:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704525295] [2022-07-21 15:15:47,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:15:47,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:15:47,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:15:47,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:15:47,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:15:47,843 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) [2022-07-21 15:15:50,487 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 [] [2022-07-21 15:15:53,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:15:55,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:15:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:15:57,410 INFO L93 Difference]: Finished difference Result 2170 states and 2906 transitions. [2022-07-21 15:15:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:15:57,411 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 [2022-07-21 15:15:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:15:57,420 INFO L225 Difference]: With dead ends: 2170 [2022-07-21 15:15:57,420 INFO L226 Difference]: Without dead ends: 1759 [2022-07-21 15:15:57,422 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 [2022-07-21 15:15:57,423 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, 9.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:15:57,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 4806 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 2097 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2022-07-21 15:15:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-21 15:15:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-21 15:15:57,474 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) [2022-07-21 15:15:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2247 transitions. [2022-07-21 15:15:57,481 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2247 transitions. Word has length 201 [2022-07-21 15:15:57,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:15:57,482 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2247 transitions. [2022-07-21 15:15:57,482 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) [2022-07-21 15:15:57,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2247 transitions. [2022-07-21 15:15:57,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-21 15:15:57,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:15:57,487 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] [2022-07-21 15:15:57,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 15:15:57,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:15:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:15:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2069209573, now seen corresponding path program 1 times [2022-07-21 15:15:57,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:15:57,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815267917] [2022-07-21 15:15:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:15:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:15:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:15:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:15:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:15:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:15:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:15:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 15:15:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:15:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:15:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 15:15:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 15:15:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:15:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:15:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 15:15:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 15:15:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 15:15:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:15:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:15:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:15:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 15:15:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 15:15:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:15:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 15:15:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-21 15:15:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-21 15:15:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:15:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-21 15:15:58,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:15:58,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815267917] [2022-07-21 15:15:58,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815267917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:15:58,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:15:58,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:15:58,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149400408] [2022-07-21 15:15:58,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:15:58,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:15:58,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:15:58,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:15:58,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:15:58,030 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) [2022-07-21 15:16:00,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:03,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:05,804 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 [] [2022-07-21 15:16:07,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:16:07,531 INFO L93 Difference]: Finished difference Result 3415 states and 4600 transitions. [2022-07-21 15:16:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:16:07,536 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 [2022-07-21 15:16:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:16:07,546 INFO L225 Difference]: With dead ends: 3415 [2022-07-21 15:16:07,546 INFO L226 Difference]: Without dead ends: 1759 [2022-07-21 15:16:07,553 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 [2022-07-21 15:16:07,557 INFO L413 NwaCegarLoop]: 2075 mSDtfsCounter, 2873 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 1526 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s 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, 9.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:16:07,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3115 Valid, 4550 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1526 Valid, 2358 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2022-07-21 15:16:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-21 15:16:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-21 15:16:07,614 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) [2022-07-21 15:16:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2246 transitions. [2022-07-21 15:16:07,622 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2246 transitions. Word has length 227 [2022-07-21 15:16:07,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:16:07,624 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2246 transitions. [2022-07-21 15:16:07,624 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) [2022-07-21 15:16:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2246 transitions. [2022-07-21 15:16:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-21 15:16:07,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:16:07,629 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] [2022-07-21 15:16:07,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 15:16:07,631 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:16:07,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:16:07,631 INFO L85 PathProgramCache]: Analyzing trace with hash 556520760, now seen corresponding path program 1 times [2022-07-21 15:16:07,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:16:07,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97229805] [2022-07-21 15:16:07,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:16:07,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:16:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:16:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:16:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:16:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:16:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:16:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:16:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:16:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:16:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:07,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:16:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:16:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:16:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:16:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:16:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:16:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:16:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:16:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:16:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:16:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:16:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:16:08,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:16:08,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97229805] [2022-07-21 15:16:08,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97229805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:16:08,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:16:08,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:16:08,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88583170] [2022-07-21 15:16:08,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:16:08,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:16:08,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:16:08,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:16:08,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:16:08,180 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) [2022-07-21 15:16:11,051 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 [] [2022-07-21 15:16:13,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:16,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:18,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:20,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:22,452 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 [] [2022-07-21 15:16:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:16:24,714 INFO L93 Difference]: Finished difference Result 3415 states and 4598 transitions. [2022-07-21 15:16:24,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:16:24,718 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 [2022-07-21 15:16:24,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:16:24,728 INFO L225 Difference]: With dead ends: 3415 [2022-07-21 15:16:24,728 INFO L226 Difference]: Without dead ends: 1759 [2022-07-21 15:16:24,735 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 [2022-07-21 15:16:24,736 INFO L413 NwaCegarLoop]: 2073 mSDtfsCounter, 4113 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 2901 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s 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, 16.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:16:24,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 4548 Invalid, 5264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2357 Invalid, 6 Unknown, 0 Unchecked, 16.3s Time] [2022-07-21 15:16:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-21 15:16:24,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-21 15:16:24,813 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) [2022-07-21 15:16:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2245 transitions. [2022-07-21 15:16:24,819 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2245 transitions. Word has length 202 [2022-07-21 15:16:24,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:16:24,819 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2245 transitions. [2022-07-21 15:16:24,820 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) [2022-07-21 15:16:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2245 transitions. [2022-07-21 15:16:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-21 15:16:24,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:16:24,824 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] [2022-07-21 15:16:24,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 15:16:24,825 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:16:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:16:24,825 INFO L85 PathProgramCache]: Analyzing trace with hash 825450679, now seen corresponding path program 1 times [2022-07-21 15:16:24,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:16:24,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536651680] [2022-07-21 15:16:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:16:24,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:16:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:16:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:16:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:16:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:16:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:16:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 15:16:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:16:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:16:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 15:16:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 15:16:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 15:16:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 15:16:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 15:16:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:16:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:16:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:16:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 15:16:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 15:16:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 15:16:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-21 15:16:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-21 15:16:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-21 15:16:25,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:16:25,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536651680] [2022-07-21 15:16:25,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536651680] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:16:25,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:16:25,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:16:25,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396513610] [2022-07-21 15:16:25,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:16:25,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:16:25,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:16:25,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:16:25,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:16:25,443 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) [2022-07-21 15:16:28,230 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 [] [2022-07-21 15:16:30,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:33,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:35,502 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 [] [2022-07-21 15:16:37,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:16:37,417 INFO L93 Difference]: Finished difference Result 3415 states and 4596 transitions. [2022-07-21 15:16:37,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:16:37,419 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 [2022-07-21 15:16:37,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:16:37,429 INFO L225 Difference]: With dead ends: 3415 [2022-07-21 15:16:37,430 INFO L226 Difference]: Without dead ends: 1759 [2022-07-21 15:16:37,436 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 [2022-07-21 15:16:37,437 INFO L413 NwaCegarLoop]: 2072 mSDtfsCounter, 4106 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s 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, 11.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:16:37,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4106 Valid, 4547 Invalid, 5258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2356 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2022-07-21 15:16:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-21 15:16:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-21 15:16:37,506 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) [2022-07-21 15:16:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2244 transitions. [2022-07-21 15:16:37,513 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2244 transitions. Word has length 229 [2022-07-21 15:16:37,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:16:37,513 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2244 transitions. [2022-07-21 15:16:37,514 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) [2022-07-21 15:16:37,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2244 transitions. [2022-07-21 15:16:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-21 15:16:37,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:16:37,518 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] [2022-07-21 15:16:37,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 15:16:37,518 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:16:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:16:37,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1818144712, now seen corresponding path program 1 times [2022-07-21 15:16:37,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:16:37,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081702208] [2022-07-21 15:16:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:16:37,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:16:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:16:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:16:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:16:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:16:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:16:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:16:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:16:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:16:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:16:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:16:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:16:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:16:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:16:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:16:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:16:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:16:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:16:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:16:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:37,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:16:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:16:38,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:16:38,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081702208] [2022-07-21 15:16:38,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081702208] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:16:38,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:16:38,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:16:38,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870634388] [2022-07-21 15:16:38,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:16:38,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:16:38,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:16:38,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:16:38,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:16:38,044 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) [2022-07-21 15:16:40,693 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 [] [2022-07-21 15:16:42,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:46,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:48,152 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 [] [2022-07-21 15:16:50,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:16:50,363 INFO L93 Difference]: Finished difference Result 3534 states and 4744 transitions. [2022-07-21 15:16:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 15:16:50,364 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 [2022-07-21 15:16:50,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:16:50,373 INFO L225 Difference]: With dead ends: 3534 [2022-07-21 15:16:50,373 INFO L226 Difference]: Without dead ends: 1878 [2022-07-21 15:16:50,379 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 [2022-07-21 15:16:50,380 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 4194 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 3019 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s 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, 11.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:16:50,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4194 Valid, 4600 Invalid, 5610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3019 Valid, 2587 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2022-07-21 15:16:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-07-21 15:16:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1758. [2022-07-21 15:16:50,458 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) [2022-07-21 15:16:50,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2332 transitions. [2022-07-21 15:16:50,465 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2332 transitions. Word has length 204 [2022-07-21 15:16:50,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:16:50,465 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2332 transitions. [2022-07-21 15:16:50,466 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) [2022-07-21 15:16:50,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2332 transitions. [2022-07-21 15:16:50,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-21 15:16:50,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:16:50,470 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] [2022-07-21 15:16:50,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 15:16:50,470 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:16:50,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:16:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2081127351, now seen corresponding path program 1 times [2022-07-21 15:16:50,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:16:50,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356091243] [2022-07-21 15:16:50,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:16:50,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:16:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:16:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:16:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:16:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:16:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:16:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:16:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:16:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:16:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:16:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:16:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:16:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:16:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:16:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:16:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:16:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:16:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:16:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:16:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:16:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:16:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:16:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:16:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:16:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:16:50,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:16:50,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356091243] [2022-07-21 15:16:50,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356091243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:16:50,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:16:50,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:16:50,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648785480] [2022-07-21 15:16:50,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:16:50,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:16:50,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:16:50,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:16:50,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:16:50,949 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) [2022-07-21 15:16:53,706 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 [] [2022-07-21 15:16:55,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:16:59,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:01,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:03,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:05,593 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 [] [2022-07-21 15:17:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:17:07,778 INFO L93 Difference]: Finished difference Result 3613 states and 4831 transitions. [2022-07-21 15:17:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 15:17:07,778 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 [2022-07-21 15:17:07,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:17:07,788 INFO L225 Difference]: With dead ends: 3613 [2022-07-21 15:17:07,788 INFO L226 Difference]: Without dead ends: 1878 [2022-07-21 15:17:07,794 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 [2022-07-21 15:17:07,795 INFO L413 NwaCegarLoop]: 2124 mSDtfsCounter, 4189 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 3019 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s 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, 16.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:17:07,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4189 Valid, 4599 Invalid, 5611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3019 Valid, 2586 Invalid, 6 Unknown, 0 Unchecked, 16.4s Time] [2022-07-21 15:17:07,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-07-21 15:17:07,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1758. [2022-07-21 15:17:07,879 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) [2022-07-21 15:17:07,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2331 transitions. [2022-07-21 15:17:07,886 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2331 transitions. Word has length 205 [2022-07-21 15:17:07,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:17:07,886 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2331 transitions. [2022-07-21 15:17:07,887 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) [2022-07-21 15:17:07,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2331 transitions. [2022-07-21 15:17:07,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-21 15:17:07,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:17:07,892 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] [2022-07-21 15:17:07,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 15:17:07,892 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:17:07,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:17:07,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1409208020, now seen corresponding path program 1 times [2022-07-21 15:17:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:17:07,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414555131] [2022-07-21 15:17:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:17:07,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:17:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:17:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:17:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:17:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:17:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:17:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 15:17:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:17:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:17:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 15:17:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 15:17:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 15:17:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 15:17:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 15:17:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:17:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:17:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:17:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 15:17:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 15:17:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 15:17:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-21 15:17:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-21 15:17:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:08,394 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-21 15:17:08,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:17:08,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414555131] [2022-07-21 15:17:08,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414555131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:17:08,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:17:08,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:17:08,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925557465] [2022-07-21 15:17:08,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:17:08,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:17:08,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:17:08,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:17:08,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:17:08,398 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) [2022-07-21 15:17:11,102 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 [] [2022-07-21 15:17:13,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:16,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:18,289 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 [] [2022-07-21 15:17:20,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:17:20,308 INFO L93 Difference]: Finished difference Result 3607 states and 4817 transitions. [2022-07-21 15:17:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:17:20,308 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 [2022-07-21 15:17:20,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:17:20,317 INFO L225 Difference]: With dead ends: 3607 [2022-07-21 15:17:20,318 INFO L226 Difference]: Without dead ends: 1872 [2022-07-21 15:17:20,324 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 [2022-07-21 15:17:20,325 INFO L413 NwaCegarLoop]: 2069 mSDtfsCounter, 4091 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s 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, 11.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:17:20,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 4544 Invalid, 5255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2353 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2022-07-21 15:17:20,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-21 15:17:20,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-21 15:17:20,413 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) [2022-07-21 15:17:20,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2330 transitions. [2022-07-21 15:17:20,421 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2330 transitions. Word has length 232 [2022-07-21 15:17:20,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:17:20,422 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2330 transitions. [2022-07-21 15:17:20,423 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) [2022-07-21 15:17:20,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2330 transitions. [2022-07-21 15:17:20,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-21 15:17:20,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:17:20,428 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] [2022-07-21 15:17:20,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 15:17:20,428 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:17:20,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:17:20,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1892508177, now seen corresponding path program 1 times [2022-07-21 15:17:20,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:17:20,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831492610] [2022-07-21 15:17:20,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:17:20,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:17:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:17:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:17:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:17:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:17:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:17:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 15:17:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:17:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:17:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 15:17:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 15:17:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 15:17:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 15:17:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 15:17:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:17:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:17:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:17:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 15:17:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 15:17:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 15:17:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-21 15:17:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-21 15:17:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-21 15:17:20,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:17:20,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831492610] [2022-07-21 15:17:20,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831492610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:17:20,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:17:20,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:17:20,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691656367] [2022-07-21 15:17:20,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:17:20,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:17:20,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:17:20,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:17:20,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:17:20,996 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) [2022-07-21 15:17:23,764 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 [] [2022-07-21 15:17:25,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:29,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:31,150 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 [] [2022-07-21 15:17:33,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:17:33,097 INFO L93 Difference]: Finished difference Result 3607 states and 4815 transitions. [2022-07-21 15:17:33,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:17:33,098 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 [2022-07-21 15:17:33,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:17:33,104 INFO L225 Difference]: With dead ends: 3607 [2022-07-21 15:17:33,104 INFO L226 Difference]: Without dead ends: 1872 [2022-07-21 15:17:33,108 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 [2022-07-21 15:17:33,108 INFO L413 NwaCegarLoop]: 2068 mSDtfsCounter, 4086 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s 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, 11.8s IncrementalHoareTripleChecker+Time [2022-07-21 15:17:33,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4086 Valid, 4543 Invalid, 5254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2352 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2022-07-21 15:17:33,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-21 15:17:33,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-21 15:17:33,203 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) [2022-07-21 15:17:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2329 transitions. [2022-07-21 15:17:33,209 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2329 transitions. Word has length 233 [2022-07-21 15:17:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:17:33,210 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2329 transitions. [2022-07-21 15:17:33,210 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) [2022-07-21 15:17:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2329 transitions. [2022-07-21 15:17:33,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-21 15:17:33,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:17:33,215 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] [2022-07-21 15:17:33,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 15:17:33,215 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:17:33,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:17:33,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1645263744, now seen corresponding path program 1 times [2022-07-21 15:17:33,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:17:33,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117094997] [2022-07-21 15:17:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:17:33,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:17:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:17:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:17:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:17:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:17:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:17:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:17:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:17:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:17:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:17:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:17:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:17:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:17:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:17:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:17:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:17:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:17:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:17:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:17:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:17:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:33,698 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:17:33,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:17:33,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117094997] [2022-07-21 15:17:33,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117094997] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:17:33,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:17:33,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:17:33,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590774720] [2022-07-21 15:17:33,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:17:33,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:17:33,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:17:33,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:17:33,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:17:33,702 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) [2022-07-21 15:17:36,451 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 [] [2022-07-21 15:17:38,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:41,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:43,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:45,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:47,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:49,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:17:49,560 INFO L93 Difference]: Finished difference Result 3607 states and 4813 transitions. [2022-07-21 15:17:49,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:17:49,561 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 [2022-07-21 15:17:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:17:49,571 INFO L225 Difference]: With dead ends: 3607 [2022-07-21 15:17:49,571 INFO L226 Difference]: Without dead ends: 1872 [2022-07-21 15:17:49,576 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 [2022-07-21 15:17:49,577 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, 15.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:17:49,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 4542 Invalid, 5258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2352 Invalid, 5 Unknown, 0 Unchecked, 15.7s Time] [2022-07-21 15:17:49,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-21 15:17:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-21 15:17:49,663 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) [2022-07-21 15:17:49,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2328 transitions. [2022-07-21 15:17:49,668 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2328 transitions. Word has length 208 [2022-07-21 15:17:49,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:17:49,669 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2328 transitions. [2022-07-21 15:17:49,669 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) [2022-07-21 15:17:49,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2328 transitions. [2022-07-21 15:17:49,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-21 15:17:49,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:17:49,673 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] [2022-07-21 15:17:49,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 15:17:49,673 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:17:49,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:17:49,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1064651025, now seen corresponding path program 1 times [2022-07-21 15:17:49,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:17:49,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760930915] [2022-07-21 15:17:49,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:17:49,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:17:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:17:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:17:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:17:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:17:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:17:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:17:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:17:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:17:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:17:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:17:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:17:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:17:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:17:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:49,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:17:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:17:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:17:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:17:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:17:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:17:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:17:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:17:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:17:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:17:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:17:50,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:17:50,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760930915] [2022-07-21 15:17:50,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760930915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:17:50,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:17:50,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:17:50,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994906481] [2022-07-21 15:17:50,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:17:50,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:17:50,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:17:50,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:17:50,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:17:50,126 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) [2022-07-21 15:17:52,762 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 [] [2022-07-21 15:17:54,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:57,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:17:59,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:02,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:04,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:18:05,969 INFO L93 Difference]: Finished difference Result 3607 states and 4811 transitions. [2022-07-21 15:18:05,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:18:05,970 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 [2022-07-21 15:18:05,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:18:05,978 INFO L225 Difference]: With dead ends: 3607 [2022-07-21 15:18:05,978 INFO L226 Difference]: Without dead ends: 1872 [2022-07-21 15:18:05,982 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 [2022-07-21 15:18:05,982 INFO L413 NwaCegarLoop]: 2066 mSDtfsCounter, 4078 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 2901 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 5257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:18:05,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 4541 Invalid, 5257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2351 Invalid, 5 Unknown, 0 Unchecked, 15.6s Time] [2022-07-21 15:18:05,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-21 15:18:06,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-21 15:18:06,074 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) [2022-07-21 15:18:06,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2327 transitions. [2022-07-21 15:18:06,080 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2327 transitions. Word has length 209 [2022-07-21 15:18:06,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:18:06,080 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2327 transitions. [2022-07-21 15:18:06,081 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) [2022-07-21 15:18:06,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2327 transitions. [2022-07-21 15:18:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-21 15:18:06,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:18:06,084 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] [2022-07-21 15:18:06,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 15:18:06,085 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:18:06,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:18:06,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1198400860, now seen corresponding path program 1 times [2022-07-21 15:18:06,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:18:06,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083911241] [2022-07-21 15:18:06,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:18:06,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:18:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:18:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:18:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:18:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:18:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:18:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 15:18:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 15:18:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:18:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 15:18:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 15:18:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 15:18:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 15:18:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:18:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:18:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:18:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 15:18:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 15:18:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 15:18:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 15:18:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:18:06,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:18:06,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083911241] [2022-07-21 15:18:06,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083911241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:18:06,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:18:06,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:18:06,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757519660] [2022-07-21 15:18:06,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:18:06,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:18:06,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:18:06,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:18:06,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:18:06,556 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) [2022-07-21 15:18:09,196 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 [] [2022-07-21 15:18:11,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:14,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:16,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:18,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:20,535 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 [] [2022-07-21 15:18:22,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:18:22,533 INFO L93 Difference]: Finished difference Result 3607 states and 4809 transitions. [2022-07-21 15:18:22,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:18:22,534 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 [2022-07-21 15:18:22,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:18:22,542 INFO L225 Difference]: With dead ends: 3607 [2022-07-21 15:18:22,542 INFO L226 Difference]: Without dead ends: 1872 [2022-07-21 15:18:22,547 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 [2022-07-21 15:18:22,547 INFO L413 NwaCegarLoop]: 2065 mSDtfsCounter, 4073 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 2901 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 5256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:18:22,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4073 Valid, 4540 Invalid, 5256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2351 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2022-07-21 15:18:22,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-21 15:18:22,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-21 15:18:22,641 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) [2022-07-21 15:18:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2326 transitions. [2022-07-21 15:18:22,647 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2326 transitions. Word has length 210 [2022-07-21 15:18:22,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:18:22,648 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2326 transitions. [2022-07-21 15:18:22,648 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) [2022-07-21 15:18:22,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2326 transitions. [2022-07-21 15:18:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-21 15:18:22,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:18:22,652 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] [2022-07-21 15:18:22,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 15:18:22,652 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:18:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:18:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1617656615, now seen corresponding path program 1 times [2022-07-21 15:18:22,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:18:22,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795816524] [2022-07-21 15:18:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:18:22,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:18:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:18:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:18:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 15:18:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 15:18:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 15:18:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 15:18:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:18:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:18:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 15:18:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 15:18:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 15:18:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 15:18:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 15:18:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 15:18:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:18:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:18:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 15:18:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 15:18:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 15:18:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-21 15:18:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-21 15:18:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-07-21 15:18:23,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:18:23,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795816524] [2022-07-21 15:18:23,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795816524] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 15:18:23,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216912156] [2022-07-21 15:18:23,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:18:23,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 15:18:23,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:18:23,589 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) [2022-07-21 15:18:23,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 15:18:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:24,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2917 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-21 15:18:24,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:18:24,872 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-07-21 15:18:24,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:18:24,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216912156] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:18:24,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:18:24,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 21 [2022-07-21 15:18:24,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516426632] [2022-07-21 15:18:24,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:18:24,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 15:18:24,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:18:24,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 15:18:24,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-07-21 15:18:24,876 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) [2022-07-21 15:18:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:18:25,429 INFO L93 Difference]: Finished difference Result 2262 states and 2951 transitions. [2022-07-21 15:18:25,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 15:18:25,430 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 [2022-07-21 15:18:25,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:18:25,437 INFO L225 Difference]: With dead ends: 2262 [2022-07-21 15:18:25,438 INFO L226 Difference]: Without dead ends: 1758 [2022-07-21 15:18:25,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2022-07-21 15:18:25,440 INFO L413 NwaCegarLoop]: 2207 mSDtfsCounter, 15 mSDsluCounter, 21987 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-21 15:18:25,441 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] [2022-07-21 15:18:25,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2022-07-21 15:18:25,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1758. [2022-07-21 15:18:25,538 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) [2022-07-21 15:18:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2324 transitions. [2022-07-21 15:18:25,543 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2324 transitions. Word has length 237 [2022-07-21 15:18:25,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:18:25,544 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2324 transitions. [2022-07-21 15:18:25,544 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) [2022-07-21 15:18:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2324 transitions. [2022-07-21 15:18:25,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-21 15:18:25,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:18:25,548 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] [2022-07-21 15:18:25,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 15:18:25,775 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 [2022-07-21 15:18:25,776 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 15:18:25,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:18:25,776 INFO L85 PathProgramCache]: Analyzing trace with hash 16756898, now seen corresponding path program 1 times [2022-07-21 15:18:25,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:18:25,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019150003] [2022-07-21 15:18:25,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:18:25,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:18:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:26,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 15:18:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:18:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 15:18:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:18:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:18:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 15:18:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 15:18:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 15:18:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 15:18:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 15:18:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 15:18:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:18:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 15:18:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 15:18:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 15:18:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 15:18:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 15:18:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 15:18:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 15:18:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 15:18:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 15:18:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:18:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 15:18:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 15:18:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 15:18:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:18:27,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:18:27,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019150003] [2022-07-21 15:18:27,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019150003] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 15:18:27,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171585019] [2022-07-21 15:18:27,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:18:27,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 15:18:27,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:18:27,256 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) [2022-07-21 15:18:27,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 15:18:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:18:28,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2930 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-21 15:18:28,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:18:28,294 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-07-21 15:18:28,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:18:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-21 15:18:28,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171585019] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 15:18:28,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 15:18:28,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 20 [2022-07-21 15:18:28,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019808318] [2022-07-21 15:18:28,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 15:18:28,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-21 15:18:28,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:18:28,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-21 15:18:28,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2022-07-21 15:18:28,576 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) [2022-07-21 15:18:34,713 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 [] [2022-07-21 15:18:36,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:38,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:40,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:43,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:47,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:49,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:51,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:53,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:55,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:57,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:18:59,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:19:01,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:19:03,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:19:05,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:19:07,860 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 []