./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.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 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 09:51:58,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 09:51:58,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 09:51:58,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 09:51:58,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 09:51:58,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 09:51:58,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 09:51:58,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 09:51:58,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 09:51:58,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 09:51:58,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 09:51:58,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 09:51:58,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 09:51:58,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 09:51:58,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 09:51:58,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 09:51:58,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 09:51:58,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 09:51:58,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 09:51:58,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 09:51:58,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 09:51:58,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 09:51:58,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 09:51:58,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 09:51:58,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 09:51:58,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 09:51:58,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 09:51:58,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 09:51:58,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 09:51:58,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 09:51:58,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 09:51:58,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 09:51:58,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 09:51:58,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 09:51:58,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 09:51:58,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 09:51:58,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 09:51:58,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 09:51:58,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 09:51:58,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 09:51:58,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 09:51:58,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 09:51:58,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 09:51:58,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 09:51:58,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 09:51:58,704 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 09:51:58,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 09:51:58,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 09:51:58,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 09:51:58,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 09:51:58,706 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 09:51:58,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 09:51:58,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 09:51:58,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 09:51:58,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 09:51:58,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 09:51:58,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 09:51:58,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 09:51:58,707 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 09:51:58,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 09:51:58,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 09:51:58,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 09:51:58,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 09:51:58,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 09:51:58,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 09:51:58,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 09:51:58,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 09:51:58,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 09:51:58,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 09:51:58,709 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 09:51:58,710 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 09:51:58,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 09:51:58,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 09:51:58,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 [2021-12-18 09:51:58,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 09:51:58,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 09:51:58,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 09:51:58,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 09:51:58,904 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 09:51:58,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-12-18 09:51:58,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06614a1c/63de3580760645b28d0917ccda87a0a4/FLAG220db2486 [2021-12-18 09:51:59,642 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 09:51:59,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-12-18 09:51:59,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06614a1c/63de3580760645b28d0917ccda87a0a4/FLAG220db2486 [2021-12-18 09:52:00,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06614a1c/63de3580760645b28d0917ccda87a0a4 [2021-12-18 09:52:00,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 09:52:00,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 09:52:00,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 09:52:00,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 09:52:00,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 09:52:00,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 09:52:00" (1/1) ... [2021-12-18 09:52:00,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e077aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:00, skipping insertion in model container [2021-12-18 09:52:00,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 09:52:00" (1/1) ... [2021-12-18 09:52:00,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 09:52:00,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 09:52:02,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2021-12-18 09:52:02,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2021-12-18 09:52:02,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 09:52:02,246 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 09:52:02,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2021-12-18 09:52:02,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2021-12-18 09:52:02,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 09:52:02,622 INFO L208 MainTranslator]: Completed translation [2021-12-18 09:52:02,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02 WrapperNode [2021-12-18 09:52:02,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 09:52:02,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 09:52:02,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 09:52:02,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 09:52:02,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:02,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:02,852 INFO L137 Inliner]: procedures = 490, calls = 2384, calls flagged for inlining = 232, calls inlined = 186, statements flattened = 4701 [2021-12-18 09:52:02,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 09:52:02,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 09:52:02,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 09:52:02,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 09:52:02,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:02,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:02,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:02,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:02,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:02,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:03,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:03,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 09:52:03,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 09:52:03,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 09:52:03,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 09:52:03,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (1/1) ... [2021-12-18 09:52:03,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 09:52:03,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 09:52:03,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 09:52:03,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 09:52:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 09:52:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 09:52:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 09:52:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 09:52:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-18 09:52:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-18 09:52:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-18 09:52:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-18 09:52:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_open [2021-12-18 09:52:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_open [2021-12-18 09:52:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 09:52:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 09:52:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 09:52:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 09:52:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-18 09:52:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-18 09:52:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-18 09:52:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-18 09:52:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 09:52:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 09:52:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 09:52:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 09:52:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 09:52:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 09:52:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_wptr [2021-12-18 09:52:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_wptr [2021-12-18 09:52:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 09:52:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 09:52:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 09:52:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 09:52:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 09:52:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 09:52:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 09:52:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 09:52:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 09:52:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 09:52:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-18 09:52:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-18 09:52:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 09:52:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 09:52:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 09:52:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 09:52:03,137 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 09:52:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 09:52:03,137 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 09:52:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-18 09:52:03,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-18 09:52:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 09:52:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 09:52:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 09:52:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 09:52:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 09:52:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 09:52:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 09:52:03,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 09:52:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_tx_db_ptr_next [2021-12-18 09:52:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_tx_db_ptr_next [2021-12-18 09:52:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 09:52:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 09:52:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 09:52:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 09:52:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 09:52:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 09:52:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 09:52:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_close [2021-12-18 09:52:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_close [2021-12-18 09:52:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 09:52:03,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 09:52:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 09:52:03,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 09:52:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2021-12-18 09:52:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2021-12-18 09:52:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-18 09:52:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-18 09:52:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 09:52:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 09:52:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 09:52:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 09:52:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 09:52:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 09:52:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 09:52:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_restore_mac [2021-12-18 09:52:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_restore_mac [2021-12-18 09:52:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 09:52:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rx_alloc_skbs [2021-12-18 09:52:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rx_alloc_skbs [2021-12-18 09:52:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 09:52:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 09:52:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 09:52:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 09:52:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 09:52:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 09:52:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 09:52:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-18 09:52:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-18 09:52:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 09:52:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 09:52:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-18 09:52:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-18 09:52:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-18 09:52:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-18 09:52:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-18 09:52:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-18 09:52:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 09:52:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 09:52:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 09:52:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 09:52:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_available [2021-12-18 09:52:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_available [2021-12-18 09:52:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-18 09:52:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-18 09:52:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 09:52:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 09:52:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 09:52:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 09:52:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_addr_elem [2021-12-18 09:52:03,150 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_addr_elem [2021-12-18 09:52:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-18 09:52:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-18 09:52:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 09:52:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 09:52:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 09:52:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 09:52:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 09:52:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 09:52:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_rptr [2021-12-18 09:52:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_rptr [2021-12-18 09:52:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 09:52:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-18 09:52:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-18 09:52:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-18 09:52:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_vlan_rx_vid [2021-12-18 09:52:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_vlan_rx_vid [2021-12-18 09:52:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-18 09:52:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-18 09:52:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_free [2021-12-18 09:52:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_free [2021-12-18 09:52:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_remove [2021-12-18 09:52:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_remove [2021-12-18 09:52:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 09:52:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 09:52:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 09:52:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 09:52:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-18 09:52:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-18 09:52:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 09:52:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 09:52:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 09:52:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-18 09:52:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-18 09:52:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 09:52:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 09:52:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 09:52:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 09:52:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 09:52:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 09:52:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 09:52:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 09:52:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_reset [2021-12-18 09:52:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_reset [2021-12-18 09:52:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 09:52:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 09:52:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 09:52:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 09:52:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_alloc_elem [2021-12-18 09:52:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_alloc_elem [2021-12-18 09:52:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_range_check [2021-12-18 09:52:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_range_check [2021-12-18 09:52:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-18 09:52:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-18 09:52:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-18 09:52:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-18 09:52:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 09:52:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 09:52:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_init [2021-12-18 09:52:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_init [2021-12-18 09:52:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 09:52:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 09:52:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_link_changed [2021-12-18 09:52:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_link_changed [2021-12-18 09:52:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 09:52:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 09:52:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 09:52:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 09:52:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 09:52:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_setmulti [2021-12-18 09:52:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_setmulti [2021-12-18 09:52:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure print_rxfd [2021-12-18 09:52:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure print_rxfd [2021-12-18 09:52:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 09:52:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 09:52:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 09:52:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-18 09:52:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 09:52:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 09:52:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 09:52:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 09:52:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 09:52:03,756 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 09:52:03,760 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 09:52:03,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 09:54:02,846 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 09:54:02,905 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 09:54:02,920 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 09:54:02,920 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 09:54:02,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 09:54:02 BoogieIcfgContainer [2021-12-18 09:54:02,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 09:54:02,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 09:54:02,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 09:54:02,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 09:54:02,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 09:52:00" (1/3) ... [2021-12-18 09:54:02,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab8d7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 09:54:02, skipping insertion in model container [2021-12-18 09:54:02,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:52:02" (2/3) ... [2021-12-18 09:54:02,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab8d7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 09:54:02, skipping insertion in model container [2021-12-18 09:54:02,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 09:54:02" (3/3) ... [2021-12-18 09:54:02,928 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-12-18 09:54:02,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 09:54:02,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-18 09:54:02,970 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 09:54:02,981 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 09:54:02,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-18 09:54:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 1632 states, 1121 states have (on average 1.2595896520963425) internal successors, (1412), 1144 states have internal predecessors, (1412), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2021-12-18 09:54:03,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-18 09:54:03,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:54:03,026 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:54:03,026 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:54:03,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:54:03,029 INFO L85 PathProgramCache]: Analyzing trace with hash -338666283, now seen corresponding path program 1 times [2021-12-18 09:54:03,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:54:03,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486995895] [2021-12-18 09:54:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:54:03,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:54:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:54:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:54:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:54:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:54:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:54:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:04,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:54:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 09:54:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:04,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 09:54:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:04,037 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-18 09:54:04,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:54:04,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486995895] [2021-12-18 09:54:04,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486995895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:54:04,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:54:04,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 09:54:04,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433789023] [2021-12-18 09:54:04,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:54:04,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 09:54:04,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:54:04,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 09:54:04,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 09:54:04,070 INFO L87 Difference]: Start difference. First operand has 1632 states, 1121 states have (on average 1.2595896520963425) internal successors, (1412), 1144 states have internal predecessors, (1412), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-18 09:54:06,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:08,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:18,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:19,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:54:19,642 INFO L93 Difference]: Finished difference Result 4643 states and 6520 transitions. [2021-12-18 09:54:19,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 09:54:19,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 100 [2021-12-18 09:54:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:54:19,678 INFO L225 Difference]: With dead ends: 4643 [2021-12-18 09:54:19,678 INFO L226 Difference]: Without dead ends: 2961 [2021-12-18 09:54:19,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 09:54:19,695 INFO L933 BasicCegarLoop]: 2454 mSDtfsCounter, 2416 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 1243 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 4720 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1243 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-18 09:54:19,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2750 Valid, 4720 Invalid, 2921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1243 Valid, 1675 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2021-12-18 09:54:19,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-12-18 09:54:19,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2796. [2021-12-18 09:54:19,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 1953 states have (on average 1.2329749103942653) internal successors, (2408), 1989 states have internal predecessors, (2408), 682 states have call successors, (682), 159 states have call predecessors, (682), 159 states have return successors, (682), 677 states have call predecessors, (682), 682 states have call successors, (682) [2021-12-18 09:54:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 3772 transitions. [2021-12-18 09:54:19,870 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 3772 transitions. Word has length 100 [2021-12-18 09:54:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:54:19,871 INFO L470 AbstractCegarLoop]: Abstraction has 2796 states and 3772 transitions. [2021-12-18 09:54:19,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-18 09:54:19,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 3772 transitions. [2021-12-18 09:54:19,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-18 09:54:19,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:54:19,877 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:54:19,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 09:54:19,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:54:19,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:54:19,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1985647655, now seen corresponding path program 1 times [2021-12-18 09:54:19,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:54:19,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992132636] [2021-12-18 09:54:19,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:54:19,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:54:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:54:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:54:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:54:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:54:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:54:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:54:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 09:54:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 09:54:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 09:54:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 09:54:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 09:54:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-18 09:54:20,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:54:20,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992132636] [2021-12-18 09:54:20,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992132636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:54:20,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:54:20,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 09:54:20,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47855710] [2021-12-18 09:54:20,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:54:20,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 09:54:20,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:54:20,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 09:54:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 09:54:20,465 INFO L87 Difference]: Start difference. First operand 2796 states and 3772 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-18 09:54:22,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:24,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:30,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:37,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:37,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:54:37,528 INFO L93 Difference]: Finished difference Result 8029 states and 10866 transitions. [2021-12-18 09:54:37,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 09:54:37,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2021-12-18 09:54:37,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:54:37,556 INFO L225 Difference]: With dead ends: 8029 [2021-12-18 09:54:37,556 INFO L226 Difference]: Without dead ends: 5248 [2021-12-18 09:54:37,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 09:54:37,566 INFO L933 BasicCegarLoop]: 2232 mSDtfsCounter, 2821 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 1309 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3152 SdHoareTripleChecker+Valid, 4336 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-12-18 09:54:37,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3152 Valid, 4336 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1309 Valid, 1435 Invalid, 4 Unknown, 0 Unchecked, 16.6s Time] [2021-12-18 09:54:37,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2021-12-18 09:54:37,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 4998. [2021-12-18 09:54:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 3489 states have (on average 1.231298366294067) internal successors, (4296), 3558 states have internal predecessors, (4296), 1205 states have call successors, (1205), 300 states have call predecessors, (1205), 302 states have return successors, (1223), 1189 states have call predecessors, (1223), 1205 states have call successors, (1223) [2021-12-18 09:54:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 6724 transitions. [2021-12-18 09:54:37,741 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 6724 transitions. Word has length 112 [2021-12-18 09:54:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:54:37,744 INFO L470 AbstractCegarLoop]: Abstraction has 4998 states and 6724 transitions. [2021-12-18 09:54:37,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-18 09:54:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 6724 transitions. [2021-12-18 09:54:37,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-18 09:54:37,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:54:37,755 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:54:37,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 09:54:37,756 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:54:37,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:54:37,756 INFO L85 PathProgramCache]: Analyzing trace with hash -699880246, now seen corresponding path program 1 times [2021-12-18 09:54:37,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:54:37,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829341747] [2021-12-18 09:54:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:54:37,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:54:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:54:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:54:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:54:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:54:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:54:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:54:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:54:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:54:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:54:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:54:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:54:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:54:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:54:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 09:54:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 09:54:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-12-18 09:54:38,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:54:38,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829341747] [2021-12-18 09:54:38,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829341747] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:54:38,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:54:38,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 09:54:38,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62836069] [2021-12-18 09:54:38,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:54:38,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 09:54:38,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:54:38,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 09:54:38,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 09:54:38,471 INFO L87 Difference]: Start difference. First operand 4998 states and 6724 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 09:54:40,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:42,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:53,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:54:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:54:55,078 INFO L93 Difference]: Finished difference Result 12376 states and 16702 transitions. [2021-12-18 09:54:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 09:54:55,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2021-12-18 09:54:55,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:54:55,116 INFO L225 Difference]: With dead ends: 12376 [2021-12-18 09:54:55,116 INFO L226 Difference]: Without dead ends: 7393 [2021-12-18 09:54:55,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 09:54:55,137 INFO L933 BasicCegarLoop]: 3460 mSDtfsCounter, 1911 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 910 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 6036 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-12-18 09:54:55,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2225 Valid, 6036 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 1624 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2021-12-18 09:54:55,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7393 states. [2021-12-18 09:54:55,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7393 to 7047. [2021-12-18 09:54:55,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7047 states, 4925 states have (on average 1.2286294416243655) internal successors, (6051), 5020 states have internal predecessors, (6051), 1687 states have call successors, (1687), 431 states have call predecessors, (1687), 433 states have return successors, (1706), 1665 states have call predecessors, (1706), 1687 states have call successors, (1706) [2021-12-18 09:54:55,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7047 states to 7047 states and 9444 transitions. [2021-12-18 09:54:55,462 INFO L78 Accepts]: Start accepts. Automaton has 7047 states and 9444 transitions. Word has length 163 [2021-12-18 09:54:55,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:54:55,463 INFO L470 AbstractCegarLoop]: Abstraction has 7047 states and 9444 transitions. [2021-12-18 09:54:55,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 09:54:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 7047 states and 9444 transitions. [2021-12-18 09:54:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-18 09:54:55,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:54:55,471 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:54:55,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 09:54:55,471 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:54:55,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:54:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash 73768999, now seen corresponding path program 1 times [2021-12-18 09:54:55,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:54:55,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026172008] [2021-12-18 09:54:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:54:55,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:54:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:54:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:54:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:54:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:54:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:54:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:54:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:54:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:54:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:54:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:54:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:54:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:54:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:54:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:54:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:54:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:54:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:54:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:54:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:54:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:54:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:54:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:54:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:54:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:54:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:54:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-12-18 09:54:56,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:54:56,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026172008] [2021-12-18 09:54:56,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026172008] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:54:56,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:54:56,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 09:54:56,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430137079] [2021-12-18 09:54:56,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:54:56,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 09:54:56,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:54:56,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 09:54:56,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 09:54:56,165 INFO L87 Difference]: Start difference. First operand 7047 states and 9444 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 09:54:58,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:00,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:11,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:12,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:55:12,679 INFO L93 Difference]: Finished difference Result 16555 states and 22255 transitions. [2021-12-18 09:55:12,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 09:55:12,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 237 [2021-12-18 09:55:12,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:55:12,719 INFO L225 Difference]: With dead ends: 16555 [2021-12-18 09:55:12,719 INFO L226 Difference]: Without dead ends: 9523 [2021-12-18 09:55:12,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 09:55:12,740 INFO L933 BasicCegarLoop]: 3462 mSDtfsCounter, 1910 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 903 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 6051 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-12-18 09:55:12,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2222 Valid, 6051 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [903 Valid, 1612 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2021-12-18 09:55:12,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2021-12-18 09:55:13,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 9080. [2021-12-18 09:55:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2275232246890253) internal successors, (7796), 6472 states have internal predecessors, (7796), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-12-18 09:55:13,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12142 transitions. [2021-12-18 09:55:13,086 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12142 transitions. Word has length 237 [2021-12-18 09:55:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:55:13,088 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12142 transitions. [2021-12-18 09:55:13,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 09:55:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12142 transitions. [2021-12-18 09:55:13,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-18 09:55:13,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:55:13,095 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:55:13,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 09:55:13,096 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:55:13,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:55:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash 321915493, now seen corresponding path program 1 times [2021-12-18 09:55:13,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:55:13,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063463618] [2021-12-18 09:55:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:55:13,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:55:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:55:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:55:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:55:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:55:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:55:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:55:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:55:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:55:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:55:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:55:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:55:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:55:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:55:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:55:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:55:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:55:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:55:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:55:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:55:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:55:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:55:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:55:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:55:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:13,924 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:55:13,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:55:13,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063463618] [2021-12-18 09:55:13,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063463618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:55:13,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:55:13,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 09:55:13,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877788409] [2021-12-18 09:55:13,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:55:13,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 09:55:13,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:55:13,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 09:55:13,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 09:55:13,925 INFO L87 Difference]: Start difference. First operand 9080 states and 12142 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:55:15,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:18,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:29,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:31,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:55:31,102 INFO L93 Difference]: Finished difference Result 18582 states and 25014 transitions. [2021-12-18 09:55:31,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:55:31,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 237 [2021-12-18 09:55:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:55:31,147 INFO L225 Difference]: With dead ends: 18582 [2021-12-18 09:55:31,147 INFO L226 Difference]: Without dead ends: 9517 [2021-12-18 09:55:31,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:55:31,178 INFO L933 BasicCegarLoop]: 1990 mSDtfsCounter, 2300 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 937 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2021-12-18 09:55:31,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2519 Valid, 3505 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [937 Valid, 1858 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2021-12-18 09:55:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-12-18 09:55:31,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-12-18 09:55:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2262635805384978) internal successors, (7788), 6472 states have internal predecessors, (7788), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-12-18 09:55:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12134 transitions. [2021-12-18 09:55:31,558 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12134 transitions. Word has length 237 [2021-12-18 09:55:31,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:55:31,559 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12134 transitions. [2021-12-18 09:55:31,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:55:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12134 transitions. [2021-12-18 09:55:31,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-18 09:55:31,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:55:31,568 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:55:31,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 09:55:31,569 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:55:31,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:55:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash -813124898, now seen corresponding path program 1 times [2021-12-18 09:55:31,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:55:31,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130804982] [2021-12-18 09:55:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:55:31,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:55:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:55:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:55:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:55:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:55:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:55:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:55:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:55:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:55:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:55:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:55:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:55:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:55:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:55:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:55:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:55:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:55:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:55:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:55:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:55:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:55:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:55:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:55:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:55:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:55:32,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:55:32,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130804982] [2021-12-18 09:55:32,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130804982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:55:32,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:55:32,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:55:32,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578708486] [2021-12-18 09:55:32,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:55:32,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:55:32,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:55:32,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:55:32,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:55:32,668 INFO L87 Difference]: Start difference. First operand 9080 states and 12134 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:55:34,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:37,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:49,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:55:51,221 INFO L93 Difference]: Finished difference Result 18582 states and 24998 transitions. [2021-12-18 09:55:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:55:51,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 238 [2021-12-18 09:55:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:55:51,252 INFO L225 Difference]: With dead ends: 18582 [2021-12-18 09:55:51,252 INFO L226 Difference]: Without dead ends: 9517 [2021-12-18 09:55:51,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:55:51,278 INFO L933 BasicCegarLoop]: 1987 mSDtfsCounter, 3460 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 3501 SdHoareTripleChecker+Invalid, 4149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-12-18 09:55:51,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3460 Valid, 3501 Invalid, 4149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1857 Invalid, 3 Unknown, 0 Unchecked, 17.8s Time] [2021-12-18 09:55:51,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-12-18 09:55:51,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-12-18 09:55:51,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2250039363879703) internal successors, (7780), 6472 states have internal predecessors, (7780), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-12-18 09:55:51,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12126 transitions. [2021-12-18 09:55:51,575 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12126 transitions. Word has length 238 [2021-12-18 09:55:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:55:51,576 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12126 transitions. [2021-12-18 09:55:51,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:55:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12126 transitions. [2021-12-18 09:55:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-18 09:55:51,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:55:51,584 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:55:51,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 09:55:51,585 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:55:51,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:55:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1525122047, now seen corresponding path program 1 times [2021-12-18 09:55:51,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:55:51,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932434264] [2021-12-18 09:55:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:55:51,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:55:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:55:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:55:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:55:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:55:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:55:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:55:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:55:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:55:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:55:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:55:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:55:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:55:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:55:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:55:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:55:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:55:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:55:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:55:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:55:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:55:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:55:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:55:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:55:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:55:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:55:52,553 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:55:52,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:55:52,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932434264] [2021-12-18 09:55:52,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932434264] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:55:52,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:55:52,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:55:52,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742388049] [2021-12-18 09:55:52,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:55:52,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:55:52,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:55:52,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:55:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:55:52,555 INFO L87 Difference]: Start difference. First operand 9080 states and 12126 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:55:54,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:55:56,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:09,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:10,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:56:10,414 INFO L93 Difference]: Finished difference Result 18582 states and 24982 transitions. [2021-12-18 09:56:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:56:10,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 239 [2021-12-18 09:56:10,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:56:10,450 INFO L225 Difference]: With dead ends: 18582 [2021-12-18 09:56:10,450 INFO L226 Difference]: Without dead ends: 9517 [2021-12-18 09:56:10,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:56:10,475 INFO L933 BasicCegarLoop]: 1986 mSDtfsCounter, 3456 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3456 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 4148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-12-18 09:56:10,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3456 Valid, 3500 Invalid, 4148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1856 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-12-18 09:56:10,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-12-18 09:56:10,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-12-18 09:56:10,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2237442922374429) internal successors, (7772), 6472 states have internal predecessors, (7772), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-12-18 09:56:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12118 transitions. [2021-12-18 09:56:10,765 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12118 transitions. Word has length 239 [2021-12-18 09:56:10,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:56:10,766 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12118 transitions. [2021-12-18 09:56:10,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:56:10,766 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12118 transitions. [2021-12-18 09:56:10,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-12-18 09:56:10,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:56:10,774 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:56:10,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 09:56:10,774 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:56:10,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:56:10,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2007680582, now seen corresponding path program 1 times [2021-12-18 09:56:10,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:56:10,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372653240] [2021-12-18 09:56:10,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:56:10,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:56:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:56:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:56:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:56:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:56:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:56:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:56:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:56:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:56:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:56:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:56:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:56:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:56:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:56:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:56:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:56:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:56:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:56:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:56:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:56:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:56:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:56:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:56:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:56:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:56:11,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:56:11,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372653240] [2021-12-18 09:56:11,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372653240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:56:11,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:56:11,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:56:11,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846566289] [2021-12-18 09:56:11,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:56:11,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:56:11,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:56:11,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:56:11,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:56:11,778 INFO L87 Difference]: Start difference. First operand 9080 states and 12118 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:56:13,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:16,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:27,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:29,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:56:29,314 INFO L93 Difference]: Finished difference Result 18582 states and 24966 transitions. [2021-12-18 09:56:29,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:56:29,314 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 240 [2021-12-18 09:56:29,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:56:29,354 INFO L225 Difference]: With dead ends: 18582 [2021-12-18 09:56:29,355 INFO L226 Difference]: Without dead ends: 9517 [2021-12-18 09:56:29,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:56:29,383 INFO L933 BasicCegarLoop]: 1986 mSDtfsCounter, 3452 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3452 SdHoareTripleChecker+Valid, 3501 SdHoareTripleChecker+Invalid, 4146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-12-18 09:56:29,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3452 Valid, 3501 Invalid, 4146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1856 Invalid, 3 Unknown, 0 Unchecked, 16.6s Time] [2021-12-18 09:56:29,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-12-18 09:56:29,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-12-18 09:56:29,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2224846480869154) internal successors, (7764), 6472 states have internal predecessors, (7764), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-12-18 09:56:29,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12110 transitions. [2021-12-18 09:56:29,781 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12110 transitions. Word has length 240 [2021-12-18 09:56:29,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:56:29,782 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12110 transitions. [2021-12-18 09:56:29,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:56:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12110 transitions. [2021-12-18 09:56:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-18 09:56:29,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:56:29,791 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:56:29,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 09:56:29,791 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:56:29,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:56:29,792 INFO L85 PathProgramCache]: Analyzing trace with hash 327390621, now seen corresponding path program 1 times [2021-12-18 09:56:29,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:56:29,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827262395] [2021-12-18 09:56:29,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:56:29,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:56:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:56:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:56:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:56:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:56:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:56:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:56:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:56:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:56:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:56:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:56:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:56:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:56:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:56:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:56:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:56:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:56:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:56:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:56:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:56:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:56:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:56:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:56:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:56:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:56:30,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:56:30,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827262395] [2021-12-18 09:56:30,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827262395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:56:30,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:56:30,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:56:30,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051525449] [2021-12-18 09:56:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:56:30,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:56:30,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:56:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:56:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:56:30,690 INFO L87 Difference]: Start difference. First operand 9080 states and 12110 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:56:32,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:35,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:47,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:48,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:56:48,972 INFO L93 Difference]: Finished difference Result 18582 states and 24950 transitions. [2021-12-18 09:56:48,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:56:48,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 241 [2021-12-18 09:56:48,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:56:49,045 INFO L225 Difference]: With dead ends: 18582 [2021-12-18 09:56:49,051 INFO L226 Difference]: Without dead ends: 9517 [2021-12-18 09:56:49,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:56:49,097 INFO L933 BasicCegarLoop]: 1984 mSDtfsCounter, 3448 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3448 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 4146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-12-18 09:56:49,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3448 Valid, 3498 Invalid, 4146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1854 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2021-12-18 09:56:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-12-18 09:56:49,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-12-18 09:56:49,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2212250039363879) internal successors, (7756), 6472 states have internal predecessors, (7756), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-12-18 09:56:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12102 transitions. [2021-12-18 09:56:49,411 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12102 transitions. Word has length 241 [2021-12-18 09:56:49,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:56:49,411 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12102 transitions. [2021-12-18 09:56:49,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:56:49,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12102 transitions. [2021-12-18 09:56:49,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-12-18 09:56:49,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:56:49,420 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:56:49,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 09:56:49,421 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:56:49,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:56:49,421 INFO L85 PathProgramCache]: Analyzing trace with hash -185329514, now seen corresponding path program 1 times [2021-12-18 09:56:49,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:56:49,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315000877] [2021-12-18 09:56:49,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:56:49,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:56:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:56:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:56:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:56:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:56:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:56:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:56:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:49,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:56:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:56:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:56:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:56:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:56:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:56:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:56:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:56:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:56:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:56:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:56:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:56:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:56:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:56:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:56:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:56:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:56:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:56:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:56:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:56:50,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:56:50,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315000877] [2021-12-18 09:56:50,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315000877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:56:50,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:56:50,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:56:50,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392817531] [2021-12-18 09:56:50,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:56:50,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:56:50,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:56:50,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:56:50,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:56:50,323 INFO L87 Difference]: Start difference. First operand 9080 states and 12102 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:56:52,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:56:54,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:57:20,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:57:23,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:57:23,910 INFO L93 Difference]: Finished difference Result 27265 states and 36644 transitions. [2021-12-18 09:57:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 09:57:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 242 [2021-12-18 09:57:23,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:57:24,024 INFO L225 Difference]: With dead ends: 27265 [2021-12-18 09:57:24,039 INFO L226 Difference]: Without dead ends: 18200 [2021-12-18 09:57:24,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-18 09:57:24,079 INFO L933 BasicCegarLoop]: 3620 mSDtfsCounter, 3633 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 4675 mSolverCounterSat, 2451 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3799 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 7129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2451 IncrementalHoareTripleChecker+Valid, 4675 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2021-12-18 09:57:24,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3799 Valid, 6906 Invalid, 7129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2451 Valid, 4675 Invalid, 3 Unknown, 0 Unchecked, 32.4s Time] [2021-12-18 09:57:24,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18200 states. [2021-12-18 09:57:24,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18200 to 17419. [2021-12-18 09:57:24,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.215337776680655) internal successors, (14770), 12386 states have internal predecessors, (14770), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 09:57:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23181 transitions. [2021-12-18 09:57:24,927 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23181 transitions. Word has length 242 [2021-12-18 09:57:24,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:57:24,929 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23181 transitions. [2021-12-18 09:57:24,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:57:24,930 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23181 transitions. [2021-12-18 09:57:24,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-12-18 09:57:24,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:57:24,937 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:57:24,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 09:57:24,938 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:57:24,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:57:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1214732089, now seen corresponding path program 1 times [2021-12-18 09:57:24,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:57:24,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368624925] [2021-12-18 09:57:24,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:57:24,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:57:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:57:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:57:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:57:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:57:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:57:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:57:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:57:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:57:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:57:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:57:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:57:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:57:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:57:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:57:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:57:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:57:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:57:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:57:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:57:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:57:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:57:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:57:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:57:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:25,829 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:57:25,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:57:25,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368624925] [2021-12-18 09:57:25,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368624925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:57:25,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:57:25,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:57:25,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069326821] [2021-12-18 09:57:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:57:25,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:57:25,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:57:25,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:57:25,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:57:25,831 INFO L87 Difference]: Start difference. First operand 17419 states and 23181 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:57:27,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:57:30,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:57:42,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:57:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:57:44,277 INFO L93 Difference]: Finished difference Result 27213 states and 36521 transitions. [2021-12-18 09:57:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:57:44,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 243 [2021-12-18 09:57:44,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:57:44,337 INFO L225 Difference]: With dead ends: 27213 [2021-12-18 09:57:44,338 INFO L226 Difference]: Without dead ends: 18148 [2021-12-18 09:57:44,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:57:44,381 INFO L933 BasicCegarLoop]: 1982 mSDtfsCounter, 3440 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 4144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-12-18 09:57:44,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3440 Valid, 3496 Invalid, 4144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1852 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-12-18 09:57:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-12-18 09:57:45,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-12-18 09:57:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2146795030033737) internal successors, (14762), 12386 states have internal predecessors, (14762), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 09:57:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23173 transitions. [2021-12-18 09:57:45,096 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23173 transitions. Word has length 243 [2021-12-18 09:57:45,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:57:45,097 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23173 transitions. [2021-12-18 09:57:45,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:57:45,097 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23173 transitions. [2021-12-18 09:57:45,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-18 09:57:45,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:57:45,105 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:57:45,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 09:57:45,105 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:57:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:57:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1781485426, now seen corresponding path program 1 times [2021-12-18 09:57:45,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:57:45,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606803455] [2021-12-18 09:57:45,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:57:45,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:57:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:57:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:57:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:57:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:57:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:57:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:57:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:57:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:57:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:57:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:57:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:57:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:57:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:57:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:57:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:57:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:57:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:57:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:57:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:57:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:57:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:57:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:57:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:57:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:57:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:57:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:57:45,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:57:45,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606803455] [2021-12-18 09:57:45,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606803455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:57:45,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:57:45,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:57:45,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706136214] [2021-12-18 09:57:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:57:45,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:57:45,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:57:45,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:57:45,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:57:45,943 INFO L87 Difference]: Start difference. First operand 17419 states and 23173 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:57:48,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:57:50,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:02,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:04,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:58:04,380 INFO L93 Difference]: Finished difference Result 27213 states and 36505 transitions. [2021-12-18 09:58:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:58:04,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 244 [2021-12-18 09:58:04,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:58:04,447 INFO L225 Difference]: With dead ends: 27213 [2021-12-18 09:58:04,447 INFO L226 Difference]: Without dead ends: 18148 [2021-12-18 09:58:04,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:58:04,481 INFO L933 BasicCegarLoop]: 1981 mSDtfsCounter, 3436 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 4143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-12-18 09:58:04,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3436 Valid, 3495 Invalid, 4143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1851 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-12-18 09:58:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-12-18 09:58:05,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-12-18 09:58:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2140212293260924) internal successors, (14754), 12386 states have internal predecessors, (14754), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 09:58:05,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23165 transitions. [2021-12-18 09:58:05,183 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23165 transitions. Word has length 244 [2021-12-18 09:58:05,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:58:05,184 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23165 transitions. [2021-12-18 09:58:05,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:58:05,184 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23165 transitions. [2021-12-18 09:58:05,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-18 09:58:05,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:58:05,191 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:58:05,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 09:58:05,191 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:58:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:58:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2009481003, now seen corresponding path program 1 times [2021-12-18 09:58:05,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:58:05,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415747883] [2021-12-18 09:58:05,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:58:05,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:58:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:58:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:58:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:58:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:58:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:58:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:58:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:58:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:58:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:58:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:58:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:58:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:58:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:58:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:58:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:58:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:58:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:58:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:58:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:58:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:58:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:58:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:58:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:58:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:06,064 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:58:06,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:58:06,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415747883] [2021-12-18 09:58:06,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415747883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:58:06,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:58:06,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:58:06,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003832171] [2021-12-18 09:58:06,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:58:06,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:58:06,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:58:06,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:58:06,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:58:06,066 INFO L87 Difference]: Start difference. First operand 17419 states and 23165 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:58:08,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:10,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:23,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:24,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:58:24,825 INFO L93 Difference]: Finished difference Result 27213 states and 36489 transitions. [2021-12-18 09:58:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:58:24,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 245 [2021-12-18 09:58:24,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:58:24,889 INFO L225 Difference]: With dead ends: 27213 [2021-12-18 09:58:24,889 INFO L226 Difference]: Without dead ends: 18148 [2021-12-18 09:58:24,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:58:24,921 INFO L933 BasicCegarLoop]: 1981 mSDtfsCounter, 3432 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3432 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 4141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-12-18 09:58:24,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3432 Valid, 3496 Invalid, 4141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1851 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2021-12-18 09:58:24,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-12-18 09:58:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-12-18 09:58:25,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.213362955648811) internal successors, (14746), 12386 states have internal predecessors, (14746), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 09:58:25,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23157 transitions. [2021-12-18 09:58:25,636 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23157 transitions. Word has length 245 [2021-12-18 09:58:25,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:58:25,637 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23157 transitions. [2021-12-18 09:58:25,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:58:25,637 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23157 transitions. [2021-12-18 09:58:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-18 09:58:25,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:58:25,644 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:58:25,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 09:58:25,644 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:58:25,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:58:25,645 INFO L85 PathProgramCache]: Analyzing trace with hash 844160590, now seen corresponding path program 1 times [2021-12-18 09:58:25,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:58:25,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162122891] [2021-12-18 09:58:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:58:25,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:58:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:58:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:58:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:58:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:58:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:58:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:58:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:58:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:58:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:58:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:58:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:58:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:58:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:58:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:58:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:58:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:58:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:58:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:58:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:58:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:58:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:58:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:58:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:58:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:26,652 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:58:26,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:58:26,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162122891] [2021-12-18 09:58:26,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162122891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:58:26,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:58:26,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:58:26,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442512281] [2021-12-18 09:58:26,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:58:26,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:58:26,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:58:26,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:58:26,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:58:26,655 INFO L87 Difference]: Start difference. First operand 17419 states and 23157 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:58:28,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:30,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:43,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:58:45,030 INFO L93 Difference]: Finished difference Result 27213 states and 36473 transitions. [2021-12-18 09:58:45,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:58:45,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 246 [2021-12-18 09:58:45,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:58:45,080 INFO L225 Difference]: With dead ends: 27213 [2021-12-18 09:58:45,080 INFO L226 Difference]: Without dead ends: 18148 [2021-12-18 09:58:45,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:58:45,107 INFO L933 BasicCegarLoop]: 1979 mSDtfsCounter, 3428 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1849 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3428 SdHoareTripleChecker+Valid, 3493 SdHoareTripleChecker+Invalid, 4141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1849 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-12-18 09:58:45,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3428 Valid, 3493 Invalid, 4141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1849 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-12-18 09:58:45,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-12-18 09:58:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-12-18 09:58:45,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2127046819715297) internal successors, (14738), 12386 states have internal predecessors, (14738), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 09:58:45,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23149 transitions. [2021-12-18 09:58:45,811 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23149 transitions. Word has length 246 [2021-12-18 09:58:45,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:58:45,812 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23149 transitions. [2021-12-18 09:58:45,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:58:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23149 transitions. [2021-12-18 09:58:45,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-12-18 09:58:45,818 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:58:45,818 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:58:45,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 09:58:45,819 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:58:45,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:58:45,819 INFO L85 PathProgramCache]: Analyzing trace with hash -772746639, now seen corresponding path program 1 times [2021-12-18 09:58:45,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:58:45,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228318275] [2021-12-18 09:58:45,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:58:45,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:58:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:58:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:58:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:58:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:58:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:58:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:58:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:58:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:58:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:58:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:58:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:58:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:58:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:58:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:58:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:58:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:58:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:58:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:58:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:58:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:58:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:58:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:58:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:58:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:58:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:58:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:58:46,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:58:46,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228318275] [2021-12-18 09:58:46,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228318275] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:58:46,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:58:46,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:58:46,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315649379] [2021-12-18 09:58:46,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:58:46,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:58:46,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:58:46,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:58:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:58:46,715 INFO L87 Difference]: Start difference. First operand 17419 states and 23149 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:58:48,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:58:51,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:03,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:04,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:59:04,646 INFO L93 Difference]: Finished difference Result 27213 states and 36457 transitions. [2021-12-18 09:59:04,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:59:04,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 247 [2021-12-18 09:59:04,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:59:04,698 INFO L225 Difference]: With dead ends: 27213 [2021-12-18 09:59:04,699 INFO L226 Difference]: Without dead ends: 18148 [2021-12-18 09:59:04,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:59:04,806 INFO L933 BasicCegarLoop]: 1978 mSDtfsCounter, 3424 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3424 SdHoareTripleChecker+Valid, 3492 SdHoareTripleChecker+Invalid, 4140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2021-12-18 09:59:04,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3424 Valid, 3492 Invalid, 4140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1848 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2021-12-18 09:59:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-12-18 09:59:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-12-18 09:59:05,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2120464082942484) internal successors, (14730), 12386 states have internal predecessors, (14730), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 09:59:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23141 transitions. [2021-12-18 09:59:05,519 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23141 transitions. Word has length 247 [2021-12-18 09:59:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:59:05,519 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23141 transitions. [2021-12-18 09:59:05,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:59:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23141 transitions. [2021-12-18 09:59:05,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-18 09:59:05,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:59:05,526 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:59:05,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 09:59:05,527 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:59:05,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:59:05,527 INFO L85 PathProgramCache]: Analyzing trace with hash 757253418, now seen corresponding path program 1 times [2021-12-18 09:59:05,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:59:05,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429565977] [2021-12-18 09:59:05,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:59:05,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:59:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:59:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:59:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:59:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:59:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:59:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:59:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:59:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:59:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:59:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:59:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:59:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:59:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:59:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:59:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:59:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:59:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:59:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:59:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:59:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:59:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:59:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:59:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:59:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:59:06,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:59:06,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429565977] [2021-12-18 09:59:06,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429565977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:59:06,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:59:06,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:59:06,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003193950] [2021-12-18 09:59:06,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:59:06,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:59:06,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:59:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:59:06,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:59:06,360 INFO L87 Difference]: Start difference. First operand 17419 states and 23141 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:59:08,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:10,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:23,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:24,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:59:24,829 INFO L93 Difference]: Finished difference Result 27213 states and 36441 transitions. [2021-12-18 09:59:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:59:24,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 248 [2021-12-18 09:59:24,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:59:24,877 INFO L225 Difference]: With dead ends: 27213 [2021-12-18 09:59:24,877 INFO L226 Difference]: Without dead ends: 18148 [2021-12-18 09:59:24,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:59:24,902 INFO L933 BasicCegarLoop]: 1977 mSDtfsCounter, 3420 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 4139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-12-18 09:59:24,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3420 Valid, 3491 Invalid, 4139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1847 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-12-18 09:59:24,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-12-18 09:59:25,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-12-18 09:59:25,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.211388134616967) internal successors, (14722), 12386 states have internal predecessors, (14722), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 09:59:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23133 transitions. [2021-12-18 09:59:25,624 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23133 transitions. Word has length 248 [2021-12-18 09:59:25,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:59:25,624 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23133 transitions. [2021-12-18 09:59:25,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:59:25,625 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23133 transitions. [2021-12-18 09:59:25,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-18 09:59:25,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:59:25,631 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:59:25,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 09:59:25,631 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:59:25,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:59:25,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1057131533, now seen corresponding path program 1 times [2021-12-18 09:59:25,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:59:25,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565599231] [2021-12-18 09:59:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:59:25,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:59:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:59:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:59:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:59:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:59:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:59:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:59:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:59:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:59:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:59:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:59:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:59:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:59:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:59:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:59:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:59:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:59:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:59:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:59:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:59:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:59:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:59:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:59:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:59:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:26,559 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:59:26,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:59:26,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565599231] [2021-12-18 09:59:26,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565599231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:59:26,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:59:26,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:59:26,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719674047] [2021-12-18 09:59:26,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:59:26,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:59:26,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:59:26,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:59:26,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:59:26,560 INFO L87 Difference]: Start difference. First operand 17419 states and 23133 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:59:28,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:30,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:42,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:44,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 09:59:44,624 INFO L93 Difference]: Finished difference Result 27213 states and 36425 transitions. [2021-12-18 09:59:44,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 09:59:44,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 249 [2021-12-18 09:59:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 09:59:44,676 INFO L225 Difference]: With dead ends: 27213 [2021-12-18 09:59:44,676 INFO L226 Difference]: Without dead ends: 18148 [2021-12-18 09:59:44,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 09:59:44,703 INFO L933 BasicCegarLoop]: 1976 mSDtfsCounter, 3416 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3416 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 4138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2021-12-18 09:59:44,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3416 Valid, 3490 Invalid, 4138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1846 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2021-12-18 09:59:44,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-12-18 09:59:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-12-18 09:59:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2107298609396857) internal successors, (14714), 12386 states have internal predecessors, (14714), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 09:59:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23125 transitions. [2021-12-18 09:59:45,438 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23125 transitions. Word has length 249 [2021-12-18 09:59:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 09:59:45,439 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23125 transitions. [2021-12-18 09:59:45,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:59:45,439 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23125 transitions. [2021-12-18 09:59:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-12-18 09:59:45,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 09:59:45,445 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 09:59:45,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 09:59:45,445 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 09:59:45,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 09:59:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1877935110, now seen corresponding path program 1 times [2021-12-18 09:59:45,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 09:59:45,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102741728] [2021-12-18 09:59:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 09:59:45,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 09:59:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 09:59:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 09:59:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 09:59:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 09:59:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 09:59:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 09:59:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 09:59:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 09:59:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 09:59:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 09:59:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 09:59:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 09:59:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 09:59:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 09:59:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:59:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:59:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 09:59:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 09:59:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 09:59:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 09:59:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 09:59:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 09:59:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 09:59:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:45,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 09:59:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 09:59:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 09:59:46,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 09:59:46,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102741728] [2021-12-18 09:59:46,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102741728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 09:59:46,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 09:59:46,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 09:59:46,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935945798] [2021-12-18 09:59:46,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 09:59:46,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 09:59:46,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 09:59:46,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 09:59:46,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 09:59:46,219 INFO L87 Difference]: Start difference. First operand 17419 states and 23125 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 09:59:48,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 09:59:50,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:00:02,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:00:04,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:00:04,740 INFO L93 Difference]: Finished difference Result 27213 states and 36409 transitions. [2021-12-18 10:00:04,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 10:00:04,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 250 [2021-12-18 10:00:04,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:00:04,786 INFO L225 Difference]: With dead ends: 27213 [2021-12-18 10:00:04,787 INFO L226 Difference]: Without dead ends: 18148 [2021-12-18 10:00:04,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 10:00:04,809 INFO L933 BasicCegarLoop]: 1976 mSDtfsCounter, 3412 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 4136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-12-18 10:00:04,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3412 Valid, 3491 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1846 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2021-12-18 10:00:04,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-12-18 10:00:05,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-12-18 10:00:05,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2100715872624044) internal successors, (14706), 12386 states have internal predecessors, (14706), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-12-18 10:00:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23117 transitions. [2021-12-18 10:00:05,543 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23117 transitions. Word has length 250 [2021-12-18 10:00:05,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:00:05,543 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23117 transitions. [2021-12-18 10:00:05,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:00:05,544 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23117 transitions. [2021-12-18 10:00:05,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-12-18 10:00:05,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:00:05,549 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:00:05,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 10:00:05,552 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:00:05,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:00:05,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1667558825, now seen corresponding path program 1 times [2021-12-18 10:00:05,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:00:05,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792587855] [2021-12-18 10:00:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:00:05,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:00:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:00:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:00:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:00:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:00:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:00:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:00:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:00:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:00:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:00:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:00:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:00:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:00:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:00:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:00:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:00:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:00:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:00:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:00:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:00:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:00:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:00:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 10:00:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:00:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 10:00:06,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:00:06,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792587855] [2021-12-18 10:00:06,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792587855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:00:06,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:00:06,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:00:06,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972697382] [2021-12-18 10:00:06,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:00:06,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:00:06,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:00:06,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:00:06,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:00:06,440 INFO L87 Difference]: Start difference. First operand 17419 states and 23117 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:00:08,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:00:10,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:00:37,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:00:42,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:00:50,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:00:50,294 INFO L93 Difference]: Finished difference Result 63287 states and 84881 transitions. [2021-12-18 10:00:50,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:00:50,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 251 [2021-12-18 10:00:50,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:00:50,486 INFO L225 Difference]: With dead ends: 63287 [2021-12-18 10:00:50,487 INFO L226 Difference]: Without dead ends: 54222 [2021-12-18 10:00:50,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:00:50,529 INFO L933 BasicCegarLoop]: 4169 mSDtfsCounter, 9425 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 4944 mSolverCounterSat, 5035 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9887 SdHoareTripleChecker+Valid, 7185 SdHoareTripleChecker+Invalid, 9983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5035 IncrementalHoareTripleChecker+Valid, 4944 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2021-12-18 10:00:50,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9887 Valid, 7185 Invalid, 9983 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5035 Valid, 4944 Invalid, 4 Unknown, 0 Unchecked, 40.3s Time] [2021-12-18 10:00:50,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54222 states. [2021-12-18 10:00:52,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54222 to 34707. [2021-12-18 10:00:52,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34707 states, 24198 states have (on average 1.2106785684767336) internal successors, (29296), 24679 states have internal predecessors, (29296), 8323 states have call successors, (8323), 2192 states have call predecessors, (8323), 2184 states have return successors, (8489), 8179 states have call predecessors, (8489), 8323 states have call successors, (8489) [2021-12-18 10:00:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34707 states to 34707 states and 46108 transitions. [2021-12-18 10:00:52,634 INFO L78 Accepts]: Start accepts. Automaton has 34707 states and 46108 transitions. Word has length 251 [2021-12-18 10:00:52,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:00:52,635 INFO L470 AbstractCegarLoop]: Abstraction has 34707 states and 46108 transitions. [2021-12-18 10:00:52,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 10:00:52,635 INFO L276 IsEmpty]: Start isEmpty. Operand 34707 states and 46108 transitions. [2021-12-18 10:00:52,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-12-18 10:00:52,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:00:52,647 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:00:52,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 10:00:52,647 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:00:52,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:00:52,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1696187976, now seen corresponding path program 1 times [2021-12-18 10:00:52,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:00:52,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955940165] [2021-12-18 10:00:52,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:00:52,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:00:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:00:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:00:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:00:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:00:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:00:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:00:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:00:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:00:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:00:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:00:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:00:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:00:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:00:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:00:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:00:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:00:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:00:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:00:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:00:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:00:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:00:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:00:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 10:00:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 10:00:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:00:53,316 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-12-18 10:00:53,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:00:53,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955940165] [2021-12-18 10:00:53,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955940165] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:00:53,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:00:53,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:00:53,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103784620] [2021-12-18 10:00:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:00:53,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:00:53,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:00:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:00:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:00:53,317 INFO L87 Difference]: Start difference. First operand 34707 states and 46108 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-18 10:00:55,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:12,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:14,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:01:14,166 INFO L93 Difference]: Finished difference Result 36193 states and 48392 transitions. [2021-12-18 10:01:14,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 10:01:14,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 251 [2021-12-18 10:01:14,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:01:14,261 INFO L225 Difference]: With dead ends: 36193 [2021-12-18 10:01:14,261 INFO L226 Difference]: Without dead ends: 36191 [2021-12-18 10:01:14,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-18 10:01:14,275 INFO L933 BasicCegarLoop]: 1978 mSDtfsCounter, 656 mSDsluCounter, 4994 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 418 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 6972 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-12-18 10:01:14,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [825 Valid, 6972 Invalid, 3098 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [418 Valid, 2678 Invalid, 2 Unknown, 0 Unchecked, 18.8s Time] [2021-12-18 10:01:14,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36191 states. [2021-12-18 10:01:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36191 to 34727. [2021-12-18 10:01:15,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34727 states, 24213 states have (on average 1.2103415520588114) internal successors, (29306), 24694 states have internal predecessors, (29306), 8323 states have call successors, (8323), 2192 states have call predecessors, (8323), 2189 states have return successors, (8499), 8184 states have call predecessors, (8499), 8323 states have call successors, (8499) [2021-12-18 10:01:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34727 states to 34727 states and 46128 transitions. [2021-12-18 10:01:15,936 INFO L78 Accepts]: Start accepts. Automaton has 34727 states and 46128 transitions. Word has length 251 [2021-12-18 10:01:15,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:01:15,937 INFO L470 AbstractCegarLoop]: Abstraction has 34727 states and 46128 transitions. [2021-12-18 10:01:15,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2021-12-18 10:01:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 34727 states and 46128 transitions. [2021-12-18 10:01:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-12-18 10:01:15,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:01:15,953 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 10, 10, 10, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:01:15,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 10:01:15,953 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:01:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:01:15,954 INFO L85 PathProgramCache]: Analyzing trace with hash -2073421253, now seen corresponding path program 1 times [2021-12-18 10:01:15,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:01:15,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058775565] [2021-12-18 10:01:15,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:01:15,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:01:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:01:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:01:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:01:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:01:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:01:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:01:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:01:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:01:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:01:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:01:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:01:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:01:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:01:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 10:01:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:01:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 10:01:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 10:01:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 10:01:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 10:01:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 10:01:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 10:01:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:01:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 10:01:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 10:01:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 10:01:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:01:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:01:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 10:01:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:01:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:01:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-18 10:01:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 10:01:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-18 10:01:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 10:01:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2021-12-18 10:01:16,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:01:16,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058775565] [2021-12-18 10:01:16,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058775565] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:01:16,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:01:16,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:01:16,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203236965] [2021-12-18 10:01:16,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:01:16,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:01:16,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:01:16,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:01:16,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:01:16,674 INFO L87 Difference]: Start difference. First operand 34727 states and 46128 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-18 10:01:18,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:21,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:26,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:31,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:37,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:01:37,677 INFO L93 Difference]: Finished difference Result 64716 states and 85900 transitions. [2021-12-18 10:01:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:01:37,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 346 [2021-12-18 10:01:37,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:01:37,763 INFO L225 Difference]: With dead ends: 64716 [2021-12-18 10:01:37,763 INFO L226 Difference]: Without dead ends: 30004 [2021-12-18 10:01:37,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:01:37,818 INFO L933 BasicCegarLoop]: 2156 mSDtfsCounter, 2541 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 1246 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 4262 SdHoareTripleChecker+Invalid, 2823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-12-18 10:01:37,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 4262 Invalid, 2823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1573 Invalid, 4 Unknown, 0 Unchecked, 19.1s Time] [2021-12-18 10:01:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30004 states. [2021-12-18 10:01:39,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30004 to 28480. [2021-12-18 10:01:39,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28480 states, 19986 states have (on average 1.2048934253977786) internal successors, (24081), 20395 states have internal predecessors, (24081), 6574 states have call successors, (6574), 1913 states have call predecessors, (6574), 1918 states have return successors, (6702), 6459 states have call predecessors, (6702), 6574 states have call successors, (6702) [2021-12-18 10:01:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28480 states to 28480 states and 37357 transitions. [2021-12-18 10:01:39,287 INFO L78 Accepts]: Start accepts. Automaton has 28480 states and 37357 transitions. Word has length 346 [2021-12-18 10:01:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:01:39,287 INFO L470 AbstractCegarLoop]: Abstraction has 28480 states and 37357 transitions. [2021-12-18 10:01:39,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-18 10:01:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 28480 states and 37357 transitions. [2021-12-18 10:01:39,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-12-18 10:01:39,292 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:01:39,292 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 8, 8, 8, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:01:39,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 10:01:39,293 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:01:39,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:01:39,293 INFO L85 PathProgramCache]: Analyzing trace with hash 701684613, now seen corresponding path program 1 times [2021-12-18 10:01:39,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:01:39,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099326437] [2021-12-18 10:01:39,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:01:39,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:01:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:01:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:01:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:01:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:01:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:01:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:01:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:01:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:01:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:01:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:01:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:01:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:01:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:01:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:01:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:01:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:01:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:01:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:01:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:01:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:01:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:01:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:01:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 10:01:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 10:01:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 10:01:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:01:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 10:01:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:01:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:01:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-18 10:01:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-18 10:01:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-18 10:01:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-12-18 10:01:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:01:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2021-12-18 10:01:40,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:01:40,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099326437] [2021-12-18 10:01:40,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099326437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:01:40,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:01:40,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:01:40,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467292485] [2021-12-18 10:01:40,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:01:40,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:01:40,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:01:40,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:01:40,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:01:40,039 INFO L87 Difference]: Start difference. First operand 28480 states and 37357 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 10:01:42,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:44,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:46,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:55,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:01:57,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:02:11,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:02:11,565 INFO L93 Difference]: Finished difference Result 65618 states and 87127 transitions. [2021-12-18 10:02:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 10:02:11,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 370 [2021-12-18 10:02:11,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:02:11,796 INFO L225 Difference]: With dead ends: 65618 [2021-12-18 10:02:11,811 INFO L226 Difference]: Without dead ends: 37174 [2021-12-18 10:02:11,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 10:02:11,940 INFO L933 BasicCegarLoop]: 3180 mSDtfsCounter, 2901 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 2901 mSolverCounterSat, 1940 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3167 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 4846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1940 IncrementalHoareTripleChecker+Valid, 2901 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2021-12-18 10:02:11,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3167 Valid, 6503 Invalid, 4846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1940 Valid, 2901 Invalid, 5 Unknown, 0 Unchecked, 29.1s Time] [2021-12-18 10:02:11,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37174 states. [2021-12-18 10:02:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37174 to 33343. [2021-12-18 10:02:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33343 states, 23445 states have (on average 1.2043079547878013) internal successors, (28235), 23920 states have internal predecessors, (28235), 7702 states have call successors, (7702), 2189 states have call predecessors, (7702), 2194 states have return successors, (7806), 7573 states have call predecessors, (7806), 7702 states have call successors, (7806) [2021-12-18 10:02:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33343 states to 33343 states and 43743 transitions. [2021-12-18 10:02:13,775 INFO L78 Accepts]: Start accepts. Automaton has 33343 states and 43743 transitions. Word has length 370 [2021-12-18 10:02:13,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:02:13,776 INFO L470 AbstractCegarLoop]: Abstraction has 33343 states and 43743 transitions. [2021-12-18 10:02:13,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 10:02:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 33343 states and 43743 transitions. [2021-12-18 10:02:13,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-12-18 10:02:13,781 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:02:13,781 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:02:13,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 10:02:13,782 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:02:13,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:02:13,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1452614250, now seen corresponding path program 1 times [2021-12-18 10:02:13,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:02:13,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000276642] [2021-12-18 10:02:13,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:02:13,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:02:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:02:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:02:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:02:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:02:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:02:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:02:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:02:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:02:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:02:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:02:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:02:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:02:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:02:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:02:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:02:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:02:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:02:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:02:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:02:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:02:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:02:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 10:02:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 10:02:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 10:02:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 10:02:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 10:02:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 10:02:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 10:02:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-18 10:02:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-18 10:02:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 10:02:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:02:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-18 10:02:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:02:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-18 10:02:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-12-18 10:02:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-18 10:02:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-18 10:02:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:14,792 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2021-12-18 10:02:14,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:02:14,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000276642] [2021-12-18 10:02:14,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000276642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:02:14,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:02:14,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:02:14,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876683389] [2021-12-18 10:02:14,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:02:14,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:02:14,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:02:14,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:02:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:02:14,794 INFO L87 Difference]: Start difference. First operand 33343 states and 43743 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-12-18 10:02:16,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:02:19,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:02:21,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:02:30,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:02:32,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:02:47,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:02:47,480 INFO L93 Difference]: Finished difference Result 75611 states and 100293 transitions. [2021-12-18 10:02:47,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 10:02:47,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 460 [2021-12-18 10:02:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:02:47,639 INFO L225 Difference]: With dead ends: 75611 [2021-12-18 10:02:47,639 INFO L226 Difference]: Without dead ends: 42647 [2021-12-18 10:02:47,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 10:02:47,715 INFO L933 BasicCegarLoop]: 3008 mSDtfsCounter, 2621 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 2870 mSolverCounterSat, 1993 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 4868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1993 IncrementalHoareTripleChecker+Valid, 2870 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2021-12-18 10:02:47,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2828 Valid, 6313 Invalid, 4868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1993 Valid, 2870 Invalid, 5 Unknown, 0 Unchecked, 29.6s Time] [2021-12-18 10:02:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42647 states. [2021-12-18 10:02:49,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42647 to 38279. [2021-12-18 10:02:49,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38279 states, 26938 states have (on average 1.203281609622095) internal successors, (32414), 27479 states have internal predecessors, (32414), 8808 states have call successors, (8808), 2527 states have call predecessors, (8808), 2531 states have return successors, (8916), 8660 states have call predecessors, (8916), 8808 states have call successors, (8916) [2021-12-18 10:02:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38279 states to 38279 states and 50138 transitions. [2021-12-18 10:02:49,692 INFO L78 Accepts]: Start accepts. Automaton has 38279 states and 50138 transitions. Word has length 460 [2021-12-18 10:02:49,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:02:49,692 INFO L470 AbstractCegarLoop]: Abstraction has 38279 states and 50138 transitions. [2021-12-18 10:02:49,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-12-18 10:02:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 38279 states and 50138 transitions. [2021-12-18 10:02:49,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-12-18 10:02:49,697 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:02:49,698 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:02:49,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 10:02:49,698 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:02:49,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:02:49,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1472155372, now seen corresponding path program 1 times [2021-12-18 10:02:49,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:02:49,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337713512] [2021-12-18 10:02:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:02:49,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:02:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:02:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:02:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:02:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:02:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:02:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:02:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:02:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:02:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:02:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:02:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:02:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:02:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:02:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:02:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:02:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:02:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:02:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:02:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:02:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:02:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:02:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 10:02:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 10:02:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 10:02:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 10:02:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 10:02:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 10:02:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 10:02:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-18 10:02:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-18 10:02:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 10:02:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:02:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-18 10:02:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:02:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:02:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-18 10:02:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-12-18 10:02:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-18 10:02:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-18 10:02:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:02:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2021-12-18 10:02:50,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:02:50,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337713512] [2021-12-18 10:02:50,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337713512] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:02:50,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:02:50,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:02:50,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484042740] [2021-12-18 10:02:50,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:02:50,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:02:50,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:02:50,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:02:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:02:50,514 INFO L87 Difference]: Start difference. First operand 38279 states and 50138 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-12-18 10:02:52,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:02:54,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:02:57,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:03:04,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:03:07,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:03:09,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:03:24,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:03:24,965 INFO L93 Difference]: Finished difference Result 86113 states and 114021 transitions. [2021-12-18 10:03:24,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 10:03:24,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 460 [2021-12-18 10:03:24,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:03:25,111 INFO L225 Difference]: With dead ends: 86113 [2021-12-18 10:03:25,112 INFO L226 Difference]: Without dead ends: 48213 [2021-12-18 10:03:25,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 10:03:25,186 INFO L933 BasicCegarLoop]: 3190 mSDtfsCounter, 2630 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 2895 mSolverCounterSat, 1921 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2838 SdHoareTripleChecker+Valid, 6770 SdHoareTripleChecker+Invalid, 4822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1921 IncrementalHoareTripleChecker+Valid, 2895 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:03:25,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2838 Valid, 6770 Invalid, 4822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1921 Valid, 2895 Invalid, 6 Unknown, 0 Unchecked, 31.2s Time] [2021-12-18 10:03:25,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48213 states. [2021-12-18 10:03:27,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48213 to 43311. [2021-12-18 10:03:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43311 states, 30511 states have (on average 1.2024843499065911) internal successors, (36689), 31118 states have internal predecessors, (36689), 9922 states have call successors, (9922), 2873 states have call predecessors, (9922), 2876 states have return successors, (10034), 9755 states have call predecessors, (10034), 9922 states have call successors, (10034) [2021-12-18 10:03:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43311 states to 43311 states and 56645 transitions. [2021-12-18 10:03:27,554 INFO L78 Accepts]: Start accepts. Automaton has 43311 states and 56645 transitions. Word has length 460 [2021-12-18 10:03:27,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:03:27,554 INFO L470 AbstractCegarLoop]: Abstraction has 43311 states and 56645 transitions. [2021-12-18 10:03:27,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-12-18 10:03:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 43311 states and 56645 transitions. [2021-12-18 10:03:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-12-18 10:03:27,560 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:03:27,560 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 11, 11, 11, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:03:27,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 10:03:27,561 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:03:27,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:03:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1780685391, now seen corresponding path program 1 times [2021-12-18 10:03:27,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:03:27,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103897848] [2021-12-18 10:03:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:03:27,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:03:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:03:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:03:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:03:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:03:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:03:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:03:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:03:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:03:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:03:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:03:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:03:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:03:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:03:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:03:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:03:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:03:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:03:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:03:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:03:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:03:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:03:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 10:03:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 10:03:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 10:03:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 10:03:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 10:03:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 10:03:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 10:03:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-18 10:03:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 10:03:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 10:03:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-18 10:03:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-12-18 10:03:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-12-18 10:03:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:03:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-12-18 10:03:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:03:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:03:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-18 10:03:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-18 10:03:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2021-12-18 10:03:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-12-18 10:03:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:03:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-12-18 10:03:28,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:03:28,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103897848] [2021-12-18 10:03:28,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103897848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:03:28,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:03:28,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 10:03:28,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816298864] [2021-12-18 10:03:28,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:03:28,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 10:03:28,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:03:28,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 10:03:28,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 10:03:28,637 INFO L87 Difference]: Start difference. First operand 43311 states and 56645 transitions. Second operand has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 10:03:30,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:03:33,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:03:35,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:03:52,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:03:54,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:04:18,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:04:18,431 INFO L93 Difference]: Finished difference Result 97919 states and 129353 transitions. [2021-12-18 10:04:18,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 10:04:18,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) Word has length 501 [2021-12-18 10:04:18,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:04:18,630 INFO L225 Difference]: With dead ends: 97919 [2021-12-18 10:04:18,631 INFO L226 Difference]: Without dead ends: 54987 [2021-12-18 10:04:18,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-18 10:04:18,712 INFO L933 BasicCegarLoop]: 3044 mSDtfsCounter, 3066 mSDsluCounter, 8155 mSDsCounter, 0 mSdLazyCounter, 5493 mSolverCounterSat, 2138 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3281 SdHoareTripleChecker+Valid, 11199 SdHoareTripleChecker+Invalid, 7636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2138 IncrementalHoareTripleChecker+Valid, 5493 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2021-12-18 10:04:18,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3281 Valid, 11199 Invalid, 7636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2138 Valid, 5493 Invalid, 5 Unknown, 0 Unchecked, 46.0s Time] [2021-12-18 10:04:18,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54987 states. [2021-12-18 10:04:21,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54987 to 49419. [2021-12-18 10:04:21,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49419 states, 34744 states have (on average 1.2010706884641953) internal successors, (41730), 35449 states have internal predecessors, (41730), 11336 states have call successors, (11336), 3327 states have call predecessors, (11336), 3337 states have return successors, (11460), 11150 states have call predecessors, (11460), 11336 states have call successors, (11460) [2021-12-18 10:04:21,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49419 states to 49419 states and 64526 transitions. [2021-12-18 10:04:21,692 INFO L78 Accepts]: Start accepts. Automaton has 49419 states and 64526 transitions. Word has length 501 [2021-12-18 10:04:21,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:04:21,693 INFO L470 AbstractCegarLoop]: Abstraction has 49419 states and 64526 transitions. [2021-12-18 10:04:21,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 10:04:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 49419 states and 64526 transitions. [2021-12-18 10:04:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-12-18 10:04:21,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:04:21,701 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 11, 11, 11, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:04:21,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 10:04:21,702 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:04:21,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:04:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash 256034543, now seen corresponding path program 1 times [2021-12-18 10:04:21,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:04:21,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302441400] [2021-12-18 10:04:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:04:21,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:04:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:04:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:04:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:04:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:04:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:04:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:04:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:04:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:04:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:04:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:04:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:04:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:04:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:04:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:04:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:04:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:04:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:04:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:04:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:04:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:04:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:04:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 10:04:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 10:04:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 10:04:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 10:04:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 10:04:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 10:04:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 10:04:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-18 10:04:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 10:04:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-18 10:04:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-12-18 10:04:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 10:04:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-18 10:04:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:04:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-18 10:04:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:04:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:04:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-12-18 10:04:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-12-18 10:04:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-12-18 10:04:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2021-12-18 10:04:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:04:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-12-18 10:04:22,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:04:22,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302441400] [2021-12-18 10:04:22,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302441400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:04:22,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:04:22,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 10:04:22,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495386722] [2021-12-18 10:04:22,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:04:22,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 10:04:22,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:04:22,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 10:04:22,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 10:04:22,672 INFO L87 Difference]: Start difference. First operand 49419 states and 64526 transitions. Second operand has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 10:04:24,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:04:27,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:04:29,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:04:45,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:04:47,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:05:12,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:05:12,889 INFO L93 Difference]: Finished difference Result 109553 states and 144535 transitions. [2021-12-18 10:05:12,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 10:05:12,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) Word has length 502 [2021-12-18 10:05:12,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:05:13,163 INFO L225 Difference]: With dead ends: 109553 [2021-12-18 10:05:13,163 INFO L226 Difference]: Without dead ends: 60513 [2021-12-18 10:05:13,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-18 10:05:13,309 INFO L933 BasicCegarLoop]: 3227 mSDtfsCounter, 2580 mSDsluCounter, 8259 mSDsCounter, 0 mSdLazyCounter, 5934 mSolverCounterSat, 1915 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 11486 SdHoareTripleChecker+Invalid, 7854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1915 IncrementalHoareTripleChecker+Valid, 5934 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.8s IncrementalHoareTripleChecker+Time [2021-12-18 10:05:13,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2787 Valid, 11486 Invalid, 7854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1915 Valid, 5934 Invalid, 5 Unknown, 0 Unchecked, 45.8s Time] [2021-12-18 10:05:13,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60513 states. [2021-12-18 10:05:16,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60513 to 54411. [2021-12-18 10:05:16,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54411 states, 38261 states have (on average 1.2005174982358016) internal successors, (45933), 39032 states have internal predecessors, (45933), 12450 states have call successors, (12450), 3681 states have call predecessors, (12450), 3698 states have return successors, (12586), 12253 states have call predecessors, (12586), 12450 states have call successors, (12586) [2021-12-18 10:05:16,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54411 states to 54411 states and 70969 transitions. [2021-12-18 10:05:16,417 INFO L78 Accepts]: Start accepts. Automaton has 54411 states and 70969 transitions. Word has length 502 [2021-12-18 10:05:16,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:05:16,418 INFO L470 AbstractCegarLoop]: Abstraction has 54411 states and 70969 transitions. [2021-12-18 10:05:16,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 10:05:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 54411 states and 70969 transitions. [2021-12-18 10:05:16,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-12-18 10:05:16,426 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:05:16,427 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 11, 11, 11, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:05:16,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 10:05:16,427 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 10:05:16,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:05:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash 649722516, now seen corresponding path program 1 times [2021-12-18 10:05:16,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:05:16,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466707110] [2021-12-18 10:05:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:05:16,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:05:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:05:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:05:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:05:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:05:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:05:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 10:05:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 10:05:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:05:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 10:05:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 10:05:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 10:05:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 10:05:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 10:05:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 10:05:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:05:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:05:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 10:05:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 10:05:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 10:05:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 10:05:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 10:05:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 10:05:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 10:05:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 10:05:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 10:05:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 10:05:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 10:05:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 10:05:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-18 10:05:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-18 10:05:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-18 10:05:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 10:05:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-18 10:05:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-18 10:05:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:05:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2021-12-18 10:05:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 10:05:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:05:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-12-18 10:05:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2021-12-18 10:05:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2021-12-18 10:05:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2021-12-18 10:05:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:05:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-12-18 10:05:17,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:05:17,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466707110] [2021-12-18 10:05:17,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466707110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:05:17,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:05:17,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 10:05:17,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980547591] [2021-12-18 10:05:17,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:05:17,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 10:05:17,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:05:17,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 10:05:17,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 10:05:17,483 INFO L87 Difference]: Start difference. First operand 54411 states and 70969 transitions. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 4 states have internal predecessors, (217), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 10:05:19,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:05:21,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:05:24,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:05:40,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:05:42,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15