./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-jme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 375b130c0dbad771cfaef84781fc161e5ae1fb4f9856cbf4d088e8198a97450e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:03:13,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:03:13,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:03:13,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:03:13,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:03:13,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:03:13,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:03:13,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:03:13,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:03:13,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:03:13,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:03:13,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:03:13,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:03:13,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:03:13,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:03:13,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:03:13,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:03:13,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:03:13,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:03:13,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:03:13,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:03:13,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:03:13,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:03:13,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:03:13,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:03:13,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:03:13,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:03:13,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:03:13,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:03:13,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:03:13,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:03:13,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:03:13,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:03:13,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:03:13,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:03:13,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:03:13,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:03:13,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:03:13,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:03:13,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:03:13,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:03:13,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:03:13,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:03:13,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:03:13,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:03:13,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:03:13,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:03:13,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:03:13,152 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:03:13,152 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:03:13,152 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:03:13,152 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:03:13,153 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:03:13,154 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:03:13,154 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:03:13,154 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:03:13,154 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:03:13,154 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:03:13,155 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:03:13,155 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:03:13,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:03:13,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:03:13,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:03:13,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:03:13,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:03:13,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:03:13,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:03:13,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:03:13,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:03:13,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:03:13,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:03:13,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:03:13,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:03:13,159 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:03:13,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:03:13,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:03:13,160 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:03:13,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:03:13,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:03:13,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:03:13,161 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 375b130c0dbad771cfaef84781fc161e5ae1fb4f9856cbf4d088e8198a97450e [2022-11-03 04:03:13,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:03:13,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:03:13,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:03:13,510 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:03:13,511 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:03:13,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-03 04:03:13,591 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/data/043185781/96956df7e56a4ca1a708e4e8366eaf1c/FLAG338dd6663 [2022-11-03 04:03:14,534 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:03:14,535 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-03 04:03:14,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/data/043185781/96956df7e56a4ca1a708e4e8366eaf1c/FLAG338dd6663 [2022-11-03 04:03:14,957 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/data/043185781/96956df7e56a4ca1a708e4e8366eaf1c [2022-11-03 04:03:14,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:03:14,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:03:14,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:03:14,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:03:14,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:03:14,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:03:14" (1/1) ... [2022-11-03 04:03:14,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fcf50ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:14, skipping insertion in model container [2022-11-03 04:03:14,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:03:14" (1/1) ... [2022-11-03 04:03:14,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:03:15,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:03:20,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466142,466155] [2022-11-03 04:03:20,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466287,466300] [2022-11-03 04:03:20,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:03:20,347 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:03:20,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466142,466155] [2022-11-03 04:03:20,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466287,466300] [2022-11-03 04:03:20,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:03:21,179 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:03:21,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21 WrapperNode [2022-11-03 04:03:21,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:03:21,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:03:21,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:03:21,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:03:21,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,606 INFO L138 Inliner]: procedures = 661, calls = 3046, calls flagged for inlining = 319, calls inlined = 257, statements flattened = 6149 [2022-11-03 04:03:21,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:03:21,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:03:21,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:03:21,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:03:21,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,894 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:03:21,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:03:21,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:03:21,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:03:21,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (1/1) ... [2022-11-03 04:03:21,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:03:21,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:21,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:03:22,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:03:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 04:03:22,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 04:03:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 04:03:22,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 04:03:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-03 04:03:22,035 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-03 04:03:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 04:03:22,035 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 04:03:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-11-03 04:03:22,035 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-11-03 04:03:22,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 04:03:22,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 04:03:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-11-03 04:03:22,036 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-11-03 04:03:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-03 04:03:22,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-03 04:03:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-11-03 04:03:22,036 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-11-03 04:03:22,036 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 04:03:22,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 04:03:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:03:22,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:03:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-11-03 04:03:22,037 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-11-03 04:03:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-11-03 04:03:22,037 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-11-03 04:03:22,037 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 04:03:22,037 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 04:03:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 04:03:22,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 04:03:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 04:03:22,038 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 04:03:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 04:03:22,038 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 04:03:22,038 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-11-03 04:03:22,038 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-11-03 04:03:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 04:03:22,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 04:03:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure jme_netpoll [2022-11-03 04:03:22,039 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_netpoll [2022-11-03 04:03:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-03 04:03:22,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-03 04:03:22,039 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 04:03:22,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 04:03:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 04:03:22,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 04:03:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 04:03:22,040 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 04:03:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 04:03:22,040 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 04:03:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-03 04:03:22,040 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 04:03:22,041 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 04:03:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 04:03:22,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 04:03:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 04:03:22,041 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 04:03:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:03:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 04:03:22,041 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 04:03:22,041 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-11-03 04:03:22,042 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-11-03 04:03:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-03 04:03:22,042 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-03 04:03:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-03 04:03:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 04:03:22,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 04:03:22,042 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-11-03 04:03:22,042 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-11-03 04:03:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-03 04:03:22,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-03 04:03:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-03 04:03:22,043 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-03 04:03:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:03:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-11-03 04:03:22,043 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-11-03 04:03:22,043 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 04:03:22,043 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 04:03:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 04:03:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 04:03:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:03:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 04:03:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 04:03:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_calibration [2022-11-03 04:03:22,044 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_calibration [2022-11-03 04:03:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:03:22,044 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 04:03:22,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 04:03:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-11-03 04:03:22,045 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-11-03 04:03:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:03:22,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:03:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 04:03:22,045 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 04:03:22,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 04:03:22,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 04:03:22,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 04:03:22,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 04:03:22,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 04:03:22,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 04:03:22,046 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-03 04:03:22,046 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-03 04:03:22,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-03 04:03:22,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-03 04:03:22,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 04:03:22,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 04:03:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-11-03 04:03:22,047 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-11-03 04:03:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-11-03 04:03:22,047 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-11-03 04:03:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-11-03 04:03:22,047 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-11-03 04:03:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:03:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 04:03:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 04:03:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 04:03:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 04:03:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 04:03:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 04:03:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 04:03:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 04:03:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-11-03 04:03:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-11-03 04:03:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:03:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 04:03:22,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 04:03:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 04:03:22,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 04:03:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:03:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 04:03:22,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 04:03:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 04:03:22,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 04:03:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:03:22,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:03:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-03 04:03:22,050 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-03 04:03:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 04:03:22,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 04:03:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 04:03:22,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 04:03:22,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 04:03:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 04:03:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-11-03 04:03:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-11-03 04:03:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 04:03:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 04:03:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 04:03:22,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 04:03:22,051 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 04:03:22,052 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 04:03:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 04:03:22,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 04:03:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-11-03 04:03:22,052 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-11-03 04:03:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-03 04:03:22,052 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-03 04:03:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:03:22,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:03:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-03 04:03:22,053 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-03 04:03:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 04:03:22,053 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 04:03:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-11-03 04:03:22,053 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-11-03 04:03:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-11-03 04:03:22,053 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-11-03 04:03:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 04:03:22,054 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 04:03:22,054 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-11-03 04:03:22,054 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-11-03 04:03:22,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:03:22,054 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-11-03 04:03:22,054 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-11-03 04:03:22,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:03:22,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:03:22,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:03:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure jme_remove_one [2022-11-03 04:03:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_remove_one [2022-11-03 04:03:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-11-03 04:03:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-11-03 04:03:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-11-03 04:03:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-11-03 04:03:22,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-03 04:03:22,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-03 04:03:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-11-03 04:03:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-11-03 04:03:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 04:03:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 04:03:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-03 04:03:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-03 04:03:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure jme_intr_msi [2022-11-03 04:03:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_intr_msi [2022-11-03 04:03:22,056 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-11-03 04:03:22,056 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-11-03 04:03:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-11-03 04:03:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-11-03 04:03:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-11-03 04:03:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-11-03 04:03:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 04:03:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 04:03:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 04:03:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 04:03:22,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:03:22,057 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:03:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 04:03:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 04:03:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 04:03:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 04:03:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-03 04:03:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-03 04:03:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-11-03 04:03:22,058 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-11-03 04:03:22,058 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 04:03:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 04:03:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:03:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 04:03:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 04:03:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_112 [2022-11-03 04:03:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_112 [2022-11-03 04:03:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 04:03:22,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 04:03:22,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:03:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-11-03 04:03:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-11-03 04:03:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-11-03 04:03:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-11-03 04:03:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-11-03 04:03:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-11-03 04:03:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:03:22,060 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-11-03 04:03:22,060 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-11-03 04:03:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 04:03:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 04:03:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 04:03:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 04:03:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 04:03:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 04:03:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 04:03:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 04:03:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-11-03 04:03:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-11-03 04:03:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_103 [2022-11-03 04:03:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_103 [2022-11-03 04:03:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_setEA [2022-11-03 04:03:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_setEA [2022-11-03 04:03:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_105 [2022-11-03 04:03:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_105 [2022-11-03 04:03:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-03 04:03:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-03 04:03:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-11-03 04:03:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-11-03 04:03:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 04:03:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 04:03:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-11-03 04:03:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-11-03 04:03:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 04:03:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 04:03:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 04:03:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 04:03:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_read [2022-11-03 04:03:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_read [2022-11-03 04:03:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-11-03 04:03:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-11-03 04:03:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-11-03 04:03:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-11-03 04:03:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-11-03 04:03:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-11-03 04:03:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 04:03:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 04:03:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 04:03:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 04:03:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-11-03 04:03:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-11-03 04:03:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 04:03:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 04:03:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure jme_shutdown [2022-11-03 04:03:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_shutdown [2022-11-03 04:03:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:03:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-11-03 04:03:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-11-03 04:03:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-11-03 04:03:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-11-03 04:03:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-11-03 04:03:22,065 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-11-03 04:03:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:03:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:03:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_113 [2022-11-03 04:03:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_113 [2022-11-03 04:03:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 04:03:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 04:03:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_write [2022-11-03 04:03:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_write [2022-11-03 04:03:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 04:03:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 04:03:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-11-03 04:03:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-11-03 04:03:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-11-03 04:03:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-11-03 04:03:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 04:03:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 04:03:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_104 [2022-11-03 04:03:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_104 [2022-11-03 04:03:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_106 [2022-11-03 04:03:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_106 [2022-11-03 04:03:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 04:03:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 04:03:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-11-03 04:03:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-11-03 04:03:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-03 04:03:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-03 04:03:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 04:03:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 04:03:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-11-03 04:03:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-11-03 04:03:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-11-03 04:03:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-11-03 04:03:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-11-03 04:03:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-11-03 04:03:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-11-03 04:03:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-11-03 04:03:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-03 04:03:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-03 04:03:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 04:03:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 04:03:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:03:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-11-03 04:03:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-11-03 04:03:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 04:03:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 04:03:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-03 04:03:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-03 04:03:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-11-03 04:03:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-11-03 04:03:23,293 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:03:23,297 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:03:23,769 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:03:31,659 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 04:03:31,943 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:03:33,618 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:03:33,618 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 04:03:33,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:03:33 BoogieIcfgContainer [2022-11-03 04:03:33,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:03:33,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:03:33,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:03:33,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:03:33,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:03:14" (1/3) ... [2022-11-03 04:03:33,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da66509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:03:33, skipping insertion in model container [2022-11-03 04:03:33,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:21" (2/3) ... [2022-11-03 04:03:33,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da66509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:03:33, skipping insertion in model container [2022-11-03 04:03:33,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:03:33" (3/3) ... [2022-11-03 04:03:33,632 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-03 04:03:33,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:03:33,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:03:33,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:03:33,774 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fdd6ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:03:33,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:03:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 2080 states, 1184 states have (on average 1.3006756756756757) internal successors, (1540), 1233 states have internal predecessors, (1540), 742 states have call successors, (742), 158 states have call predecessors, (742), 157 states have return successors, (733), 717 states have call predecessors, (733), 733 states have call successors, (733) [2022-11-03 04:03:33,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-03 04:03:33,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:33,845 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:33,845 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:33,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:33,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2113783906, now seen corresponding path program 1 times [2022-11-03 04:03:33,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:33,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410589617] [2022-11-03 04:03:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:33,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-03 04:03:34,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:34,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410589617] [2022-11-03 04:03:34,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410589617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:34,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:34,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:03:34,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518856082] [2022-11-03 04:03:34,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:34,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:03:34,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:34,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:03:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:03:34,859 INFO L87 Difference]: Start difference. First operand has 2080 states, 1184 states have (on average 1.3006756756756757) internal successors, (1540), 1233 states have internal predecessors, (1540), 742 states have call successors, (742), 158 states have call predecessors, (742), 157 states have return successors, (733), 717 states have call predecessors, (733), 733 states have call successors, (733) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 04:03:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:38,207 INFO L93 Difference]: Finished difference Result 5611 states and 8180 transitions. [2022-11-03 04:03:38,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:03:38,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 234 [2022-11-03 04:03:38,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:38,255 INFO L225 Difference]: With dead ends: 5611 [2022-11-03 04:03:38,255 INFO L226 Difference]: Without dead ends: 3493 [2022-11-03 04:03:38,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:03:38,276 INFO L413 NwaCegarLoop]: 3120 mSDtfsCounter, 2171 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 5624 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:38,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 5624 Invalid, 891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 04:03:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2022-11-03 04:03:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 3491. [2022-11-03 04:03:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 1984 states have (on average 1.2857862903225807) internal successors, (2551), 2069 states have internal predecessors, (2551), 1222 states have call successors, (1222), 285 states have call predecessors, (1222), 284 states have return successors, (1223), 1188 states have call predecessors, (1223), 1222 states have call successors, (1223) [2022-11-03 04:03:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4996 transitions. [2022-11-03 04:03:38,664 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4996 transitions. Word has length 234 [2022-11-03 04:03:38,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:38,670 INFO L495 AbstractCegarLoop]: Abstraction has 3491 states and 4996 transitions. [2022-11-03 04:03:38,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 04:03:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4996 transitions. [2022-11-03 04:03:38,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1301 [2022-11-03 04:03:38,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:38,759 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 28, 27, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:38,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:03:38,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:38,761 INFO L85 PathProgramCache]: Analyzing trace with hash 443196036, now seen corresponding path program 1 times [2022-11-03 04:03:38,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:38,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517682664] [2022-11-03 04:03:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:38,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 9864 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9859 trivial. 0 not checked. [2022-11-03 04:03:41,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:41,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517682664] [2022-11-03 04:03:41,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517682664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:41,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:41,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:03:41,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298943768] [2022-11-03 04:03:41,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:41,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:03:41,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:41,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:03:41,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:03:41,520 INFO L87 Difference]: Start difference. First operand 3491 states and 4996 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) [2022-11-03 04:03:46,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:46,009 INFO L93 Difference]: Finished difference Result 9859 states and 14082 transitions. [2022-11-03 04:03:46,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:03:46,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) Word has length 1300 [2022-11-03 04:03:46,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:46,062 INFO L225 Difference]: With dead ends: 9859 [2022-11-03 04:03:46,062 INFO L226 Difference]: Without dead ends: 6405 [2022-11-03 04:03:46,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:03:46,083 INFO L413 NwaCegarLoop]: 3613 mSDtfsCounter, 2433 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 6071 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:46,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 6071 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-03 04:03:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-11-03 04:03:46,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6401. [2022-11-03 04:03:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 3646 states have (on average 1.281404278661547) internal successors, (4672), 3803 states have internal predecessors, (4672), 2217 states have call successors, (2217), 539 states have call predecessors, (2217), 537 states have return successors, (2219), 2153 states have call predecessors, (2219), 2217 states have call successors, (2219) [2022-11-03 04:03:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9108 transitions. [2022-11-03 04:03:46,495 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9108 transitions. Word has length 1300 [2022-11-03 04:03:46,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:46,496 INFO L495 AbstractCegarLoop]: Abstraction has 6401 states and 9108 transitions. [2022-11-03 04:03:46,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) [2022-11-03 04:03:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9108 transitions. [2022-11-03 04:03:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1348 [2022-11-03 04:03:46,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:46,602 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 30, 28, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:46,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:03:46,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:46,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:46,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1284700483, now seen corresponding path program 1 times [2022-11-03 04:03:46,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:46,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607255535] [2022-11-03 04:03:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:46,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 10192 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10181 trivial. 0 not checked. [2022-11-03 04:03:48,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:48,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607255535] [2022-11-03 04:03:48,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607255535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:48,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:48,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:03:48,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038743897] [2022-11-03 04:03:48,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:48,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:03:48,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:48,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:03:48,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:03:48,585 INFO L87 Difference]: Start difference. First operand 6401 states and 9108 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) [2022-11-03 04:03:52,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:52,854 INFO L93 Difference]: Finished difference Result 15677 states and 22304 transitions. [2022-11-03 04:03:52,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:03:52,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) Word has length 1347 [2022-11-03 04:03:52,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:52,933 INFO L225 Difference]: With dead ends: 15677 [2022-11-03 04:03:52,934 INFO L226 Difference]: Without dead ends: 9313 [2022-11-03 04:03:52,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:03:52,978 INFO L413 NwaCegarLoop]: 4562 mSDtfsCounter, 2434 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 7012 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:52,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 7012 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 04:03:52,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9313 states. [2022-11-03 04:03:53,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9313 to 9309. [2022-11-03 04:03:53,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9309 states, 5306 states have (on average 1.2798718431963814) internal successors, (6791), 5535 states have internal predecessors, (6791), 3212 states have call successors, (3212), 793 states have call predecessors, (3212), 790 states have return successors, (3215), 3118 states have call predecessors, (3215), 3212 states have call successors, (3215) [2022-11-03 04:03:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9309 states to 9309 states and 13218 transitions. [2022-11-03 04:03:53,548 INFO L78 Accepts]: Start accepts. Automaton has 9309 states and 13218 transitions. Word has length 1347 [2022-11-03 04:03:53,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:53,550 INFO L495 AbstractCegarLoop]: Abstraction has 9309 states and 13218 transitions. [2022-11-03 04:03:53,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) [2022-11-03 04:03:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 9309 states and 13218 transitions. [2022-11-03 04:03:53,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1410 [2022-11-03 04:03:53,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:53,606 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 32, 28, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:53,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:03:53,608 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:53,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:53,609 INFO L85 PathProgramCache]: Analyzing trace with hash 471149890, now seen corresponding path program 1 times [2022-11-03 04:03:53,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:53,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92370801] [2022-11-03 04:03:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:53,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 10554 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10540 trivial. 0 not checked. [2022-11-03 04:03:55,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:55,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92370801] [2022-11-03 04:03:55,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92370801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:55,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:55,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:03:55,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226137533] [2022-11-03 04:03:55,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:55,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:03:55,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:55,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:03:55,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:03:55,773 INFO L87 Difference]: Start difference. First operand 9309 states and 13218 transitions. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2022-11-03 04:04:02,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:02,949 INFO L93 Difference]: Finished difference Result 26643 states and 39215 transitions. [2022-11-03 04:04:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:04:02,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) Word has length 1409 [2022-11-03 04:04:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:03,075 INFO L225 Difference]: With dead ends: 26643 [2022-11-03 04:04:03,076 INFO L226 Difference]: Without dead ends: 17371 [2022-11-03 04:04:03,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:03,143 INFO L413 NwaCegarLoop]: 4281 mSDtfsCounter, 1991 mSDsluCounter, 8232 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2442 SdHoareTripleChecker+Valid, 11323 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:03,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2442 Valid, 11323 Invalid, 2404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [453 Valid, 1951 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 04:04:03,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17371 states. [2022-11-03 04:04:04,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17371 to 9313. [2022-11-03 04:04:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9313 states, 5310 states have (on average 1.2796610169491525) internal successors, (6795), 5539 states have internal predecessors, (6795), 3212 states have call successors, (3212), 793 states have call predecessors, (3212), 790 states have return successors, (3215), 3118 states have call predecessors, (3215), 3212 states have call successors, (3215) [2022-11-03 04:04:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9313 states to 9313 states and 13222 transitions. [2022-11-03 04:04:04,126 INFO L78 Accepts]: Start accepts. Automaton has 9313 states and 13222 transitions. Word has length 1409 [2022-11-03 04:04:04,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:04,128 INFO L495 AbstractCegarLoop]: Abstraction has 9313 states and 13222 transitions. [2022-11-03 04:04:04,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2022-11-03 04:04:04,128 INFO L276 IsEmpty]: Start isEmpty. Operand 9313 states and 13222 transitions. [2022-11-03 04:04:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1412 [2022-11-03 04:04:04,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:04,180 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 32, 28, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:04,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:04:04,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:04,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1913309069, now seen corresponding path program 1 times [2022-11-03 04:04:04,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:04,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934542955] [2022-11-03 04:04:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:04,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 10554 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10540 trivial. 0 not checked. [2022-11-03 04:04:05,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:05,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934542955] [2022-11-03 04:04:05,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934542955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:05,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:05,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:04:05,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216916798] [2022-11-03 04:04:05,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:05,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:05,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:05,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:05,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:05,964 INFO L87 Difference]: Start difference. First operand 9313 states and 13222 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) [2022-11-03 04:04:07,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:07,767 INFO L93 Difference]: Finished difference Result 18581 states and 26375 transitions. [2022-11-03 04:04:07,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:07,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) Word has length 1411 [2022-11-03 04:04:07,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:07,826 INFO L225 Difference]: With dead ends: 18581 [2022-11-03 04:04:07,826 INFO L226 Difference]: Without dead ends: 9305 [2022-11-03 04:04:07,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:07,868 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2780 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2780 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:07,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2780 Valid, 2482 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 04:04:07,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-11-03 04:04:08,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9305. [2022-11-03 04:04:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9305 states, 5306 states have (on average 1.2791179796456842) internal successors, (6787), 5531 states have internal predecessors, (6787), 3208 states have call successors, (3208), 793 states have call predecessors, (3208), 790 states have return successors, (3211), 3116 states have call predecessors, (3211), 3208 states have call successors, (3211) [2022-11-03 04:04:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9305 states to 9305 states and 13206 transitions. [2022-11-03 04:04:08,828 INFO L78 Accepts]: Start accepts. Automaton has 9305 states and 13206 transitions. Word has length 1411 [2022-11-03 04:04:08,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:08,829 INFO L495 AbstractCegarLoop]: Abstraction has 9305 states and 13206 transitions. [2022-11-03 04:04:08,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) [2022-11-03 04:04:08,830 INFO L276 IsEmpty]: Start isEmpty. Operand 9305 states and 13206 transitions. [2022-11-03 04:04:08,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1438 [2022-11-03 04:04:08,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:08,901 INFO L195 NwaCegarLoop]: trace histogram [58, 45, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:08,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:04:08,902 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:08,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:08,903 INFO L85 PathProgramCache]: Analyzing trace with hash 252991769, now seen corresponding path program 1 times [2022-11-03 04:04:08,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:08,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724474810] [2022-11-03 04:04:08,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:08,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:10,646 INFO L134 CoverageAnalysis]: Checked inductivity of 11196 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 11179 trivial. 0 not checked. [2022-11-03 04:04:10,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:10,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724474810] [2022-11-03 04:04:10,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724474810] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:10,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669980025] [2022-11-03 04:04:10,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:10,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:10,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:10,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:10,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:04:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:13,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 10507 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:04:13,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:13,800 INFO L134 CoverageAnalysis]: Checked inductivity of 11196 backedges. 2256 proven. 0 refuted. 0 times theorem prover too weak. 8940 trivial. 0 not checked. [2022-11-03 04:04:13,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:04:13,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669980025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:13,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:04:13,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2022-11-03 04:04:13,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40482301] [2022-11-03 04:04:13,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:13,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:13,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:13,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:13,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:13,805 INFO L87 Difference]: Start difference. First operand 9305 states and 13206 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) [2022-11-03 04:04:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:16,692 INFO L93 Difference]: Finished difference Result 18615 states and 26934 transitions. [2022-11-03 04:04:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:16,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) Word has length 1437 [2022-11-03 04:04:16,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:16,747 INFO L225 Difference]: With dead ends: 18615 [2022-11-03 04:04:16,747 INFO L226 Difference]: Without dead ends: 9347 [2022-11-03 04:04:16,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1439 GetRequests, 1438 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:16,789 INFO L413 NwaCegarLoop]: 2483 mSDtfsCounter, 4 mSDsluCounter, 2892 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4961 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:16,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4961 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-03 04:04:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9347 states. [2022-11-03 04:04:17,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9347 to 9311. [2022-11-03 04:04:17,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9311 states, 5312 states have (on average 1.2788027108433735) internal successors, (6793), 5537 states have internal predecessors, (6793), 3208 states have call successors, (3208), 793 states have call predecessors, (3208), 790 states have return successors, (3211), 3116 states have call predecessors, (3211), 3208 states have call successors, (3211) [2022-11-03 04:04:17,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9311 states to 9311 states and 13212 transitions. [2022-11-03 04:04:17,623 INFO L78 Accepts]: Start accepts. Automaton has 9311 states and 13212 transitions. Word has length 1437 [2022-11-03 04:04:17,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:17,626 INFO L495 AbstractCegarLoop]: Abstraction has 9311 states and 13212 transitions. [2022-11-03 04:04:17,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) [2022-11-03 04:04:17,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9311 states and 13212 transitions. [2022-11-03 04:04:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1462 [2022-11-03 04:04:17,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:17,693 INFO L195 NwaCegarLoop]: trace histogram [58, 47, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:17,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:04:17,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 04:04:17,909 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:17,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash 382791337, now seen corresponding path program 1 times [2022-11-03 04:04:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:17,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015538198] [2022-11-03 04:04:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:17,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:19,727 INFO L134 CoverageAnalysis]: Checked inductivity of 11448 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11434 trivial. 0 not checked. [2022-11-03 04:04:19,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:19,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015538198] [2022-11-03 04:04:19,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015538198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:19,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:19,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:04:19,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122820231] [2022-11-03 04:04:19,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:19,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:19,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:19,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:19,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:19,731 INFO L87 Difference]: Start difference. First operand 9311 states and 13212 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) [2022-11-03 04:04:22,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:22,907 INFO L93 Difference]: Finished difference Result 18675 states and 26990 transitions. [2022-11-03 04:04:22,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:22,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) Word has length 1461 [2022-11-03 04:04:22,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:22,955 INFO L225 Difference]: With dead ends: 18675 [2022-11-03 04:04:22,955 INFO L226 Difference]: Without dead ends: 9401 [2022-11-03 04:04:22,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:22,994 INFO L413 NwaCegarLoop]: 2491 mSDtfsCounter, 9 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4970 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:22,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4970 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 04:04:23,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2022-11-03 04:04:23,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9347. [2022-11-03 04:04:23,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9347 states, 5336 states have (on average 1.2786731634182908) internal successors, (6823), 5561 states have internal predecessors, (6823), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-03 04:04:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9347 states to 9347 states and 13266 transitions. [2022-11-03 04:04:23,599 INFO L78 Accepts]: Start accepts. Automaton has 9347 states and 13266 transitions. Word has length 1461 [2022-11-03 04:04:23,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:23,601 INFO L495 AbstractCegarLoop]: Abstraction has 9347 states and 13266 transitions. [2022-11-03 04:04:23,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) [2022-11-03 04:04:23,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9347 states and 13266 transitions. [2022-11-03 04:04:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1475 [2022-11-03 04:04:23,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:23,737 INFO L195 NwaCegarLoop]: trace histogram [58, 48, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:23,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:04:23,738 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:23,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:23,738 INFO L85 PathProgramCache]: Analyzing trace with hash 766831360, now seen corresponding path program 1 times [2022-11-03 04:04:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:23,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394246249] [2022-11-03 04:04:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:23,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 11584 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11570 trivial. 0 not checked. [2022-11-03 04:04:25,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:25,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394246249] [2022-11-03 04:04:25,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394246249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:25,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:25,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:04:25,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883285903] [2022-11-03 04:04:25,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:25,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:25,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:25,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:25,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:25,343 INFO L87 Difference]: Start difference. First operand 9347 states and 13266 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (171), 2 states have call predecessors, (171), 2 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) [2022-11-03 04:04:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:27,998 INFO L93 Difference]: Finished difference Result 18711 states and 26743 transitions. [2022-11-03 04:04:27,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:27,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (171), 2 states have call predecessors, (171), 2 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) Word has length 1474 [2022-11-03 04:04:28,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:28,069 INFO L225 Difference]: With dead ends: 18711 [2022-11-03 04:04:28,069 INFO L226 Difference]: Without dead ends: 9401 [2022-11-03 04:04:28,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:28,128 INFO L413 NwaCegarLoop]: 2487 mSDtfsCounter, 5 mSDsluCounter, 2893 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:28,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4968 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 04:04:28,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2022-11-03 04:04:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9353. [2022-11-03 04:04:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9353 states, 5342 states have (on average 1.27836016473231) internal successors, (6829), 5567 states have internal predecessors, (6829), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-03 04:04:28,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9353 states to 9353 states and 13272 transitions. [2022-11-03 04:04:28,964 INFO L78 Accepts]: Start accepts. Automaton has 9353 states and 13272 transitions. Word has length 1474 [2022-11-03 04:04:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:28,966 INFO L495 AbstractCegarLoop]: Abstraction has 9353 states and 13272 transitions. [2022-11-03 04:04:28,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (171), 2 states have call predecessors, (171), 2 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) [2022-11-03 04:04:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 9353 states and 13272 transitions. [2022-11-03 04:04:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1516 [2022-11-03 04:04:29,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:29,010 INFO L195 NwaCegarLoop]: trace histogram [62, 50, 32, 31, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:29,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:04:29,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:29,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:29,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1846934192, now seen corresponding path program 1 times [2022-11-03 04:04:29,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:29,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148850589] [2022-11-03 04:04:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:29,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:30,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12743 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12728 trivial. 0 not checked. [2022-11-03 04:04:30,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:30,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148850589] [2022-11-03 04:04:30,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148850589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:30,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:30,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:04:30,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651039736] [2022-11-03 04:04:30,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:30,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:30,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:30,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:30,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:30,920 INFO L87 Difference]: Start difference. First operand 9353 states and 13272 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (172), 2 states have call predecessors, (172), 2 states have call successors, (172) [2022-11-03 04:04:33,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:33,516 INFO L93 Difference]: Finished difference Result 18699 states and 26713 transitions. [2022-11-03 04:04:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (172), 2 states have call predecessors, (172), 2 states have call successors, (172) Word has length 1515 [2022-11-03 04:04:33,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:33,577 INFO L225 Difference]: With dead ends: 18699 [2022-11-03 04:04:33,577 INFO L226 Difference]: Without dead ends: 9383 [2022-11-03 04:04:33,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:33,622 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4960 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:33,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4960 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-03 04:04:33,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2022-11-03 04:04:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 9359. [2022-11-03 04:04:34,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9359 states, 5348 states have (on average 1.2780478683620045) internal successors, (6835), 5573 states have internal predecessors, (6835), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-03 04:04:34,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 13278 transitions. [2022-11-03 04:04:34,327 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 13278 transitions. Word has length 1515 [2022-11-03 04:04:34,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:34,329 INFO L495 AbstractCegarLoop]: Abstraction has 9359 states and 13278 transitions. [2022-11-03 04:04:34,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (172), 2 states have call predecessors, (172), 2 states have call successors, (172) [2022-11-03 04:04:34,330 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 13278 transitions. [2022-11-03 04:04:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1557 [2022-11-03 04:04:34,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:34,373 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 33, 32, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:34,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 04:04:34,373 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:34,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:34,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1535104100, now seen corresponding path program 1 times [2022-11-03 04:04:34,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:34,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768492974] [2022-11-03 04:04:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:34,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 13990 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 13974 trivial. 0 not checked. [2022-11-03 04:04:36,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:36,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768492974] [2022-11-03 04:04:36,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768492974] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:36,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701045741] [2022-11-03 04:04:36,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:36,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:36,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:36,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:36,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:04:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:39,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 11146 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:04:39,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 13990 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 13780 trivial. 0 not checked. [2022-11-03 04:04:40,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:04:40,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701045741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:40,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:04:40,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 04:04:40,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415265902] [2022-11-03 04:04:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:40,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:40,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:40,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:40,023 INFO L87 Difference]: Start difference. First operand 9359 states and 13278 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) [2022-11-03 04:04:42,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:45,786 INFO L93 Difference]: Finished difference Result 22637 states and 32123 transitions. [2022-11-03 04:04:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) Word has length 1556 [2022-11-03 04:04:45,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:45,882 INFO L225 Difference]: With dead ends: 22637 [2022-11-03 04:04:45,882 INFO L226 Difference]: Without dead ends: 13315 [2022-11-03 04:04:45,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1559 GetRequests, 1556 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:45,938 INFO L413 NwaCegarLoop]: 4244 mSDtfsCounter, 2185 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 6590 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:45,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 6590 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 04:04:45,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13315 states. [2022-11-03 04:04:46,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13315 to 13311. [2022-11-03 04:04:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 7608 states have (on average 1.2718191377497372) internal successors, (9676), 7937 states have internal predecessors, (9676), 4565 states have call successors, (4565), 1143 states have call predecessors, (4565), 1137 states have return successors, (4571), 4426 states have call predecessors, (4571), 4565 states have call successors, (4571) [2022-11-03 04:04:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 18812 transitions. [2022-11-03 04:04:46,961 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 18812 transitions. Word has length 1556 [2022-11-03 04:04:46,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:46,964 INFO L495 AbstractCegarLoop]: Abstraction has 13311 states and 18812 transitions. [2022-11-03 04:04:46,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) [2022-11-03 04:04:46,964 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 18812 transitions. [2022-11-03 04:04:47,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1577 [2022-11-03 04:04:47,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:47,015 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 34, 33, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:47,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 04:04:47,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 04:04:47,237 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:47,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1449754364, now seen corresponding path program 1 times [2022-11-03 04:04:47,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:47,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507180924] [2022-11-03 04:04:47,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:47,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 14140 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 14111 trivial. 0 not checked. [2022-11-03 04:04:49,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:49,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507180924] [2022-11-03 04:04:49,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507180924] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:49,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140988694] [2022-11-03 04:04:49,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:49,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:49,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:49,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:49,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:04:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:52,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 11207 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 04:04:52,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 14140 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 13782 trivial. 0 not checked. [2022-11-03 04:04:52,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:04:52,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140988694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:52,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:04:52,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 04:04:52,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530029719] [2022-11-03 04:04:52,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:52,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:52,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:52,788 INFO L87 Difference]: Start difference. First operand 13311 states and 18812 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (179), 3 states have call predecessors, (179), 3 states have return successors, (178), 3 states have call predecessors, (178), 3 states have call successors, (178) [2022-11-03 04:04:54,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:57,952 INFO L93 Difference]: Finished difference Result 31749 states and 44685 transitions. [2022-11-03 04:04:57,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:57,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (179), 3 states have call predecessors, (179), 3 states have return successors, (178), 3 states have call predecessors, (178), 3 states have call successors, (178) Word has length 1576 [2022-11-03 04:04:57,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:58,066 INFO L225 Difference]: With dead ends: 31749 [2022-11-03 04:04:58,067 INFO L226 Difference]: Without dead ends: 18475 [2022-11-03 04:04:58,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1579 GetRequests, 1576 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:04:58,129 INFO L413 NwaCegarLoop]: 2980 mSDtfsCounter, 2750 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:58,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2750 Valid, 4875 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 04:04:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18475 states. [2022-11-03 04:04:59,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18475 to 18471. [2022-11-03 04:04:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18471 states, 10544 states have (on average 1.2687784522003034) internal successors, (13378), 11025 states have internal predecessors, (13378), 6264 states have call successors, (6264), 1671 states have call predecessors, (6264), 1662 states have return successors, (6273), 6060 states have call predecessors, (6273), 6264 states have call successors, (6273) [2022-11-03 04:04:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18471 states to 18471 states and 25915 transitions. [2022-11-03 04:04:59,545 INFO L78 Accepts]: Start accepts. Automaton has 18471 states and 25915 transitions. Word has length 1576 [2022-11-03 04:04:59,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:59,548 INFO L495 AbstractCegarLoop]: Abstraction has 18471 states and 25915 transitions. [2022-11-03 04:04:59,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (179), 3 states have call predecessors, (179), 3 states have return successors, (178), 3 states have call predecessors, (178), 3 states have call successors, (178) [2022-11-03 04:04:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 18471 states and 25915 transitions. [2022-11-03 04:04:59,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1579 [2022-11-03 04:04:59,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:59,592 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 34, 33, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 4, 4, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:59,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:04:59,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 04:04:59,793 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:59,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash -57374553, now seen corresponding path program 1 times [2022-11-03 04:04:59,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:59,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046578880] [2022-11-03 04:04:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:59,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 14142 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 14113 trivial. 0 not checked. [2022-11-03 04:05:01,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:01,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046578880] [2022-11-03 04:05:01,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046578880] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:01,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071683624] [2022-11-03 04:05:01,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:01,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:01,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:01,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:05:02,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:05:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:05,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 11209 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:05:05,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 14142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14142 trivial. 0 not checked. [2022-11-03 04:05:05,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:05,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071683624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:05,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:05:05,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 04:05:05,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393914254] [2022-11-03 04:05:05,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:05,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:05:05,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:05,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:05:05,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:05:05,381 INFO L87 Difference]: Start difference. First operand 18471 states and 25915 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2022-11-03 04:05:08,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:12,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:12,278 INFO L93 Difference]: Finished difference Result 41922 states and 59676 transitions. [2022-11-03 04:05:12,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:05:12,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) Word has length 1578 [2022-11-03 04:05:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:12,417 INFO L225 Difference]: With dead ends: 41922 [2022-11-03 04:05:12,417 INFO L226 Difference]: Without dead ends: 23488 [2022-11-03 04:05:12,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1581 GetRequests, 1578 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:05:12,508 INFO L413 NwaCegarLoop]: 3476 mSDtfsCounter, 709 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 6207 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:12,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 6207 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1019 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 04:05:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23488 states. [2022-11-03 04:05:14,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23488 to 18474. [2022-11-03 04:05:14,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18474 states, 10547 states have (on average 1.268702000568882) internal successors, (13381), 11028 states have internal predecessors, (13381), 6264 states have call successors, (6264), 1671 states have call predecessors, (6264), 1662 states have return successors, (6273), 6060 states have call predecessors, (6273), 6264 states have call successors, (6273) [2022-11-03 04:05:14,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18474 states to 18474 states and 25918 transitions. [2022-11-03 04:05:14,408 INFO L78 Accepts]: Start accepts. Automaton has 18474 states and 25918 transitions. Word has length 1578 [2022-11-03 04:05:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:14,411 INFO L495 AbstractCegarLoop]: Abstraction has 18474 states and 25918 transitions. [2022-11-03 04:05:14,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2022-11-03 04:05:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 18474 states and 25918 transitions. [2022-11-03 04:05:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1585 [2022-11-03 04:05:14,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:14,463 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 34, 33, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 4, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:14,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:14,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-03 04:05:14,664 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:14,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:14,665 INFO L85 PathProgramCache]: Analyzing trace with hash -101724608, now seen corresponding path program 1 times [2022-11-03 04:05:14,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:14,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132161360] [2022-11-03 04:05:14,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:14,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 14150 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 14121 trivial. 0 not checked. [2022-11-03 04:05:16,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:16,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132161360] [2022-11-03 04:05:16,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132161360] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:16,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762652680] [2022-11-03 04:05:16,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:16,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:16,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:16,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:05:16,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_790fa31c-8bb9-4160-8dd5-0c6cf54c135a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 04:05:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:19,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 11243 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:05:20,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:20,096 INFO L134 CoverageAnalysis]: Checked inductivity of 14150 backedges. 2260 proven. 1 refuted. 0 times theorem prover too weak. 11889 trivial. 0 not checked. [2022-11-03 04:05:20,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 14150 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 14121 trivial. 0 not checked. [2022-11-03 04:05:22,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762652680] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:05:22,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1753601346] [2022-11-03 04:05:22,708 INFO L159 IcfgInterpreter]: Started Sifa with 538 locations of interest [2022-11-03 04:05:22,708 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:05:22,717 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:05:22,723 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:05:22,723 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs