./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW --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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- 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-4e7fbc6 [2022-11-23 15:28:16,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:28:16,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:28:16,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:28:16,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:28:16,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:28:16,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:28:16,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:28:16,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:28:16,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:28:16,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:28:16,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:28:16,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:28:16,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:28:16,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:28:16,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:28:16,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:28:16,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:28:16,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:28:16,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:28:16,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:28:16,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:28:16,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:28:16,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:28:16,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:28:16,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:28:16,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:28:16,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:28:16,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:28:16,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:28:16,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:28:16,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:28:16,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:28:16,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:28:16,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:28:16,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:28:16,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:28:16,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:28:16,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:28:16,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:28:16,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:28:16,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:28:16,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:28:16,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:28:16,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:28:16,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:28:16,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:28:16,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:28:16,820 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:28:16,820 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:28:16,821 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:28:16,821 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:28:16,822 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:28:16,822 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:28:16,822 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:28:16,822 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:28:16,823 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:28:16,823 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:28:16,823 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:28:16,823 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:28:16,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:28:16,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:28:16,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:28:16,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:28:16,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:28:16,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:28:16,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:28:16,825 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:28:16,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:28:16,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:28:16,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:28:16,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:28:16,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:28:16,827 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:28:16,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:28:16,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:28:16,828 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:28:16,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:28:16,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:28:16,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:28:16,829 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_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2022-11-23 15:28:17,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:28:17,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:28:17,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:28:17,128 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:28:17,128 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:28:17,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-23 15:28:20,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:28:21,049 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:28:21,050 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-23 15:28:21,136 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/data/9bf8bed0b/b1b6de56e3934f3693cc0c6eac036b05/FLAG5c564d1e0 [2022-11-23 15:28:21,157 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/data/9bf8bed0b/b1b6de56e3934f3693cc0c6eac036b05 [2022-11-23 15:28:21,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:28:21,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:28:21,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:28:21,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:28:21,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:28:21,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:28:21" (1/1) ... [2022-11-23 15:28:21,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bfec50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:21, skipping insertion in model container [2022-11-23 15:28:21,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:28:21" (1/1) ... [2022-11-23 15:28:21,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:28:21,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:28:25,341 WARN L237 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_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-11-23 15:28:25,345 WARN L237 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_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-11-23 15:28:25,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:28:25,401 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:28:25,981 WARN L237 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_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-11-23 15:28:25,982 WARN L237 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_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-11-23 15:28:25,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:28:26,213 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:28:26,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26 WrapperNode [2022-11-23 15:28:26,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:28:26,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:28:26,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:28:26,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:28:26,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,537 INFO L138 Inliner]: procedures = 533, calls = 2779, calls flagged for inlining = 243, calls inlined = 223, statements flattened = 6838 [2022-11-23 15:28:26,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:28:26,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:28:26,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:28:26,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:28:26,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:28:26,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:28:26,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:28:26,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:28:26,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (1/1) ... [2022-11-23 15:28:26,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:28:26,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:28:27,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:28:27,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f6fd1-5c55-4bc3-b021-b4617d3dd6a3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:28:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_handler_adjust [2022-11-23 15:28:27,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_handler_adjust [2022-11-23 15:28:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:28:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:28:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-23 15:28:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-23 15:28:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_core_destroy [2022-11-23 15:28:27,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_core_destroy [2022-11-23 15:28:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:28:27,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:28:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 15:28:27,058 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 15:28:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_watermark_intr_disable [2022-11-23 15:28:27,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_watermark_intr_disable [2022-11-23 15:28:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 15:28:27,059 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 15:28:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_recv_next [2022-11-23 15:28:27,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_recv_next [2022-11-23 15:28:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-23 15:28:27,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-23 15:28:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_send_next [2022-11-23 15:28:27,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_send_next [2022-11-23 15:28:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:28:27,061 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:28:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_ce_deinit [2022-11-23 15:28:27,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_ce_deinit [2022-11-23 15:28:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_start [2022-11-23 15:28:27,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_start [2022-11-23 15:28:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_resume [2022-11-23 15:28:27,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_resume [2022-11-23 15:28:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:28:27,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:28:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_read32 [2022-11-23 15:28:27,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_read32 [2022-11-23 15:28:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-23 15:28:27,064 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-23 15:28:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:28:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:28:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2022-11-23 15:28:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2022-11-23 15:28:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-23 15:28:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-23 15:28:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:28:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-23 15:28:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-23 15:28:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_mem [2022-11-23 15:28:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_mem [2022-11-23 15:28:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 15:28:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 15:28:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:28:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:28:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_base_address [2022-11-23 15:28:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_base_address [2022-11-23 15:28:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_access [2022-11-23 15:28:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_access [2022-11-23 15:28:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-23 15:28:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-23 15:28:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:28:27,070 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:28:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:28:27,070 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 15:28:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 15:28:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:28:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:28:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:28:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:28:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:28:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:28:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_84 [2022-11-23 15:28:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_84 [2022-11-23 15:28:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 15:28:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 15:28:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:28:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:28:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_86 [2022-11-23 15:28:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_86 [2022-11-23 15:28:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2022-11-23 15:28:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2022-11-23 15:28:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 15:28:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 15:28:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 15:28:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 15:28:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_wake [2022-11-23 15:28:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_wake [2022-11-23 15:28:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:28:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:28:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 15:28:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 15:28:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_copy_complete_intr_disable [2022-11-23 15:28:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_copy_complete_intr_disable [2022-11-23 15:28:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_compl [2022-11-23 15:28:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_compl [2022-11-23 15:28:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_process_ce [2022-11-23 15:28:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_process_ce [2022-11-23 15:28:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_read32 [2022-11-23 15:28:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_read32 [2022-11-23 15:28:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 15:28:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 15:28:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 15:28:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 15:28:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 15:28:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 15:28:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_wake [2022-11-23 15:28:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_wake [2022-11-23 15:28:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_cleanup_ce [2022-11-23 15:28:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_cleanup_ce [2022-11-23 15:28:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_disable_interrupts [2022-11-23 15:28:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_disable_interrupts [2022-11-23 15:28:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:28:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 15:28:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 15:28:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 15:28:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 15:28:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_sleep [2022-11-23 15:28:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_sleep [2022-11-23 15:28:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-23 15:28:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-23 15:28:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-23 15:28:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-23 15:28:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:28:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:28:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:28:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:28:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:28:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_request_early_irq [2022-11-23 15:28:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_request_early_irq [2022-11-23 15:28:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:28:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-23 15:28:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-23 15:28:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:28:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:28:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_write32 [2022-11-23 15:28:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_write32 [2022-11-23 15:28:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:28:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:28:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-23 15:28:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-23 15:28:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:28:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 15:28:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 15:28:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 15:28:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_get_free_queue_number [2022-11-23 15:28:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_get_free_queue_number [2022-11-23 15:28:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_stop [2022-11-23 15:28:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_stop [2022-11-23 15:28:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_recv_buf_enqueue [2022-11-23 15:28:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_recv_buf_enqueue [2022-11-23 15:28:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_priv [2022-11-23 15:28:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_priv [2022-11-23 15:28:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:28:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:28:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 15:28:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 15:28:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_deinit [2022-11-23 15:28:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_deinit [2022-11-23 15:28:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2022-11-23 15:28:27,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2022-11-23 15:28:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:28:27,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:28:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_rx_pipe_cleanup [2022-11-23 15:28:27,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_rx_pipe_cleanup [2022-11-23 15:28:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_revoke_recv_next [2022-11-23 15:28:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_revoke_recv_next [2022-11-23 15:28:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2022-11-23 15:28:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2022-11-23 15:28:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-23 15:28:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-23 15:28:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_stop_ce [2022-11-23 15:28:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_stop_ce [2022-11-23 15:28:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_device_reset [2022-11-23 15:28:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_device_reset [2022-11-23 15:28:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:28:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:28:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:28:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:28:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:28:27,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:28:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_post_rx_pipe [2022-11-23 15:28:27,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_post_rx_pipe [2022-11-23 15:28:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_irq [2022-11-23 15:28:27,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_irq [2022-11-23 15:28:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 15:28:27,105 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 15:28:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-11-23 15:28:27,106 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-11-23 15:28:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_down [2022-11-23 15:28:27,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_down [2022-11-23 15:28:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 15:28:27,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 15:28:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_service [2022-11-23 15:28:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_service [2022-11-23 15:28:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 15:28:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 15:28:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:28:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:28:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_send [2022-11-23 15:28:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_send [2022-11-23 15:28:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_suspend [2022-11-23 15:28:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_suspend [2022-11-23 15:28:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-23 15:28:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-23 15:28:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-23 15:28:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-23 15:28:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-23 15:28:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-23 15:28:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:28:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:28:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:28:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_src_ring_read_index_get [2022-11-23 15:28:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_src_ring_read_index_get [2022-11-23 15:28:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure ATH10K_SKB_CB [2022-11-23 15:28:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ATH10K_SKB_CB [2022-11-23 15:28:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_early_irq [2022-11-23 15:28:27,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_early_irq [2022-11-23 15:28:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:28:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-23 15:28:27,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-23 15:28:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_sleep [2022-11-23 15:28:27,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_sleep [2022-11-23 15:28:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_kill_tasklet [2022-11-23 15:28:27,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_kill_tasklet [2022-11-23 15:28:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_remove [2022-11-23 15:28:27,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_remove [2022-11-23 15:28:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:28:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 15:28:27,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 15:28:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_disable_and_clear_legacy_irq [2022-11-23 15:28:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_disable_and_clear_legacy_irq [2022-11-23 15:28:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:28:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:28:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 15:28:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 15:28:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_irq_pending [2022-11-23 15:28:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_irq_pending [2022-11-23 15:28:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-23 15:28:27,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-23 15:28:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:28:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:28:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-23 15:28:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-23 15:28:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:28:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:28:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-23 15:28:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-23 15:28:27,119 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 15:28:27,119 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 15:28:27,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2022-11-23 15:28:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2022-11-23 15:28:27,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_85 [2022-11-23 15:28:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_85 [2022-11-23 15:28:27,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_83 [2022-11-23 15:28:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_83 [2022-11-23 15:28:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_write32 [2022-11-23 15:28:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_write32 [2022-11-23 15:28:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_map_service_to_pipe [2022-11-23 15:28:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_map_service_to_pipe [2022-11-23 15:28:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msi_block [2022-11-23 15:28:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msi_block [2022-11-23 15:28:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:28:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:28:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:28:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:28:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:28:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_6 [2022-11-23 15:28:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_6 [2022-11-23 15:28:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:28:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:28:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-23 15:28:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-23 15:28:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-23 15:28:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-23 15:28:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_dbg_dump [2022-11-23 15:28:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_dbg_dump [2022-11-23 15:28:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-23 15:28:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-23 15:28:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_up [2022-11-23 15:28:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_up [2022-11-23 15:28:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:28:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:28:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_deinit_irq [2022-11-23 15:28:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_deinit_irq [2022-11-23 15:28:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_master [2022-11-23 15:28:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_master [2022-11-23 15:28:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-23 15:28:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-23 15:28:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure host_interest_item_address [2022-11-23 15:28:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure host_interest_item_address [2022-11-23 15:28:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2022-11-23 15:28:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2022-11-23 15:28:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-23 15:28:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-23 15:28:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-23 15:28:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-23 15:28:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_cancel_send_next [2022-11-23 15:28:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_cancel_send_next [2022-11-23 15:28:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:28:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:28:27,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:28:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_engine_int_status_clear [2022-11-23 15:28:27,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_engine_int_status_clear [2022-11-23 15:28:28,298 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:28:28,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:28:28,542 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:28:33,989 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 15:28:34,297 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:28:36,034 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:28:36,034 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 15:28:36,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:36 BoogieIcfgContainer [2022-11-23 15:28:36,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:28:36,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:28:36,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:28:36,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:28:36,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:28:21" (1/3) ... [2022-11-23 15:28:36,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342eec2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:28:36, skipping insertion in model container [2022-11-23 15:28:36,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:26" (2/3) ... [2022-11-23 15:28:36,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342eec2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:28:36, skipping insertion in model container [2022-11-23 15:28:36,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:36" (3/3) ... [2022-11-23 15:28:36,052 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-23 15:28:36,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:28:36,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:28:36,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:28:36,192 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;@2063cac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:28:36,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:28:36,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 2073 states, 1194 states have (on average 1.295644891122278) internal successors, (1547), 1241 states have internal predecessors, (1547), 741 states have call successors, (741), 142 states have call predecessors, (741), 141 states have return successors, (732), 726 states have call predecessors, (732), 732 states have call successors, (732) [2022-11-23 15:28:36,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-23 15:28:36,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:28:36,307 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:28:36,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:28:36,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:28:36,313 INFO L85 PathProgramCache]: Analyzing trace with hash 59245224, now seen corresponding path program 1 times [2022-11-23 15:28:36,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:28:36,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825933429] [2022-11-23 15:28:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:28:36,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:28:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:28:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-23 15:28:37,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:28:37,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825933429] [2022-11-23 15:28:37,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825933429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:28:37,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:28:37,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:28:37,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086290200] [2022-11-23 15:28:37,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:28:37,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:28:37,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:28:37,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:28:37,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:28:37,614 INFO L87 Difference]: Start difference. First operand has 2073 states, 1194 states have (on average 1.295644891122278) internal successors, (1547), 1241 states have internal predecessors, (1547), 741 states have call successors, (741), 142 states have call predecessors, (741), 141 states have return successors, (732), 726 states have call predecessors, (732), 732 states have call successors, (732) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 15:28:39,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:42,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:44,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:46,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:28:46,000 INFO L93 Difference]: Finished difference Result 5980 states and 8785 transitions. [2022-11-23 15:28:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:28:46,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 186 [2022-11-23 15:28:46,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:28:46,052 INFO L225 Difference]: With dead ends: 5980 [2022-11-23 15:28:46,053 INFO L226 Difference]: Without dead ends: 3872 [2022-11-23 15:28:46,081 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 [2022-11-23 15:28:46,086 INFO L413 NwaCegarLoop]: 3479 mSDtfsCounter, 2708 mSDsluCounter, 2635 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2708 SdHoareTripleChecker+Valid, 6114 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:28:46,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2708 Valid, 6114 Invalid, 713 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-23 15:28:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2022-11-23 15:28:46,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3869. [2022-11-23 15:28:46,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3869 states, 2250 states have (on average 1.2835555555555556) internal successors, (2888), 2325 states have internal predecessors, (2888), 1345 states have call successors, (1345), 273 states have call predecessors, (1345), 273 states have return successors, (1345), 1332 states have call predecessors, (1345), 1345 states have call successors, (1345) [2022-11-23 15:28:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3869 states to 3869 states and 5578 transitions. [2022-11-23 15:28:46,558 INFO L78 Accepts]: Start accepts. Automaton has 3869 states and 5578 transitions. Word has length 186 [2022-11-23 15:28:46,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:28:46,561 INFO L495 AbstractCegarLoop]: Abstraction has 3869 states and 5578 transitions. [2022-11-23 15:28:46,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 15:28:46,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3869 states and 5578 transitions. [2022-11-23 15:28:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-23 15:28:46,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:28:46,588 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 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] [2022-11-23 15:28:46,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:28:46,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:28:46,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:28:46,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1066785111, now seen corresponding path program 1 times [2022-11-23 15:28:46,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:28:46,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483827415] [2022-11-23 15:28:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:28:46,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:28:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:28:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-23 15:28:47,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:28:47,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483827415] [2022-11-23 15:28:47,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483827415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:28:47,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:28:47,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:28:47,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430086942] [2022-11-23 15:28:47,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:28:47,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:28:47,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:28:47,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:28:47,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:28:47,037 INFO L87 Difference]: Start difference. First operand 3869 states and 5578 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 15:28:49,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:52,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:54,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:28:54,705 INFO L93 Difference]: Finished difference Result 9498 states and 13685 transitions. [2022-11-23 15:28:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:28:54,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 233 [2022-11-23 15:28:54,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:28:54,762 INFO L225 Difference]: With dead ends: 9498 [2022-11-23 15:28:54,762 INFO L226 Difference]: Without dead ends: 5660 [2022-11-23 15:28:54,782 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 [2022-11-23 15:28:54,783 INFO L413 NwaCegarLoop]: 4886 mSDtfsCounter, 2539 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 7453 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:28:54,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2539 Valid, 7453 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 928 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-23 15:28:54,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5660 states. [2022-11-23 15:28:55,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5660 to 5656. [2022-11-23 15:28:55,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 3284 states have (on average 1.2804506699147382) internal successors, (4205), 3395 states have internal predecessors, (4205), 1965 states have call successors, (1965), 406 states have call predecessors, (1965), 406 states have return successors, (1965), 1944 states have call predecessors, (1965), 1965 states have call successors, (1965) [2022-11-23 15:28:55,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 8135 transitions. [2022-11-23 15:28:55,109 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 8135 transitions. Word has length 233 [2022-11-23 15:28:55,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:28:55,112 INFO L495 AbstractCegarLoop]: Abstraction has 5656 states and 8135 transitions. [2022-11-23 15:28:55,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 15:28:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 8135 transitions. [2022-11-23 15:28:55,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-11-23 15:28:55,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:28:55,121 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:28:55,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:28:55,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:28:55,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:28:55,133 INFO L85 PathProgramCache]: Analyzing trace with hash 785352188, now seen corresponding path program 1 times [2022-11-23 15:28:55,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:28:55,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776829724] [2022-11-23 15:28:55,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:28:55,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:28:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:28:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2022-11-23 15:28:55,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:28:55,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776829724] [2022-11-23 15:28:55,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776829724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:28:55,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:28:55,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:28:55,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265531250] [2022-11-23 15:28:55,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:28:55,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:28:55,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:28:55,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:28:55,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:28:55,673 INFO L87 Difference]: Start difference. First operand 5656 states and 8135 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-23 15:28:56,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:28:58,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:01,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:03,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:04,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:04,843 INFO L93 Difference]: Finished difference Result 13419 states and 19281 transitions. [2022-11-23 15:29:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:29:04,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 240 [2022-11-23 15:29:04,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:04,909 INFO L225 Difference]: With dead ends: 13419 [2022-11-23 15:29:04,909 INFO L226 Difference]: Without dead ends: 7794 [2022-11-23 15:29:04,938 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 [2022-11-23 15:29:04,945 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 2429 mSDsluCounter, 2550 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 7092 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:04,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 7092 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-23 15:29:04,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7794 states. [2022-11-23 15:29:05,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7794 to 7786. [2022-11-23 15:29:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7786 states, 4551 states have (on average 1.2764227642276422) internal successors, (5809), 4712 states have internal predecessors, (5809), 2667 states have call successors, (2667), 567 states have call predecessors, (2667), 567 states have return successors, (2667), 2632 states have call predecessors, (2667), 2667 states have call successors, (2667) [2022-11-23 15:29:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7786 states to 7786 states and 11143 transitions. [2022-11-23 15:29:05,403 INFO L78 Accepts]: Start accepts. Automaton has 7786 states and 11143 transitions. Word has length 240 [2022-11-23 15:29:05,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:05,404 INFO L495 AbstractCegarLoop]: Abstraction has 7786 states and 11143 transitions. [2022-11-23 15:29:05,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-23 15:29:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 7786 states and 11143 transitions. [2022-11-23 15:29:05,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-23 15:29:05,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:05,417 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 3, 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] [2022-11-23 15:29:05,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:29:05,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:05,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:05,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2000768085, now seen corresponding path program 1 times [2022-11-23 15:29:05,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:05,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584902559] [2022-11-23 15:29:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:05,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:06,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2022-11-23 15:29:06,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:06,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584902559] [2022-11-23 15:29:06,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584902559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:06,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:06,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:29:06,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598569713] [2022-11-23 15:29:06,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:06,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:29:06,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:06,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:29:06,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:29:06,008 INFO L87 Difference]: Start difference. First operand 7786 states and 11143 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-23 15:29:08,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:09,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:11,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:12,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:12,891 INFO L93 Difference]: Finished difference Result 15764 states and 22516 transitions. [2022-11-23 15:29:12,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:29:12,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 255 [2022-11-23 15:29:12,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:12,962 INFO L225 Difference]: With dead ends: 15764 [2022-11-23 15:29:12,963 INFO L226 Difference]: Without dead ends: 8009 [2022-11-23 15:29:13,008 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 [2022-11-23 15:29:13,009 INFO L413 NwaCegarLoop]: 2646 mSDtfsCounter, 262 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 5222 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:13,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 5222 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 638 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-23 15:29:13,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2022-11-23 15:29:13,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 8009. [2022-11-23 15:29:13,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8009 states, 4698 states have (on average 1.2735206470838654) internal successors, (5983), 4861 states have internal predecessors, (5983), 2716 states have call successors, (2716), 594 states have call predecessors, (2716), 594 states have return successors, (2716), 2681 states have call predecessors, (2716), 2716 states have call successors, (2716) [2022-11-23 15:29:13,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8009 states to 8009 states and 11415 transitions. [2022-11-23 15:29:13,450 INFO L78 Accepts]: Start accepts. Automaton has 8009 states and 11415 transitions. Word has length 255 [2022-11-23 15:29:13,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:13,451 INFO L495 AbstractCegarLoop]: Abstraction has 8009 states and 11415 transitions. [2022-11-23 15:29:13,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-23 15:29:13,452 INFO L276 IsEmpty]: Start isEmpty. Operand 8009 states and 11415 transitions. [2022-11-23 15:29:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-23 15:29:13,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:13,467 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 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] [2022-11-23 15:29:13,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:29:13,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:13,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:13,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1610117920, now seen corresponding path program 1 times [2022-11-23 15:29:13,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:13,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321700306] [2022-11-23 15:29:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:13,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2022-11-23 15:29:13,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:13,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321700306] [2022-11-23 15:29:13,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321700306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:13,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:13,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:29:13,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942913589] [2022-11-23 15:29:13,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:13,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:29:13,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:13,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:29:13,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:29:13,947 INFO L87 Difference]: Start difference. First operand 8009 states and 11415 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-23 15:29:15,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:17,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:20,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:23,115 INFO L93 Difference]: Finished difference Result 17977 states and 25626 transitions. [2022-11-23 15:29:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:29:23,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 278 [2022-11-23 15:29:23,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:23,174 INFO L225 Difference]: With dead ends: 17977 [2022-11-23 15:29:23,174 INFO L226 Difference]: Without dead ends: 10176 [2022-11-23 15:29:23,210 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 [2022-11-23 15:29:23,211 INFO L413 NwaCegarLoop]: 4774 mSDtfsCounter, 2437 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 7313 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:23,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2437 Valid, 7313 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 956 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-23 15:29:23,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10176 states. [2022-11-23 15:29:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10176 to 10168. [2022-11-23 15:29:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10168 states, 5977 states have (on average 1.2713735987953823) internal successors, (7599), 6190 states have internal predecessors, (7599), 3425 states have call successors, (3425), 765 states have call predecessors, (3425), 765 states have return successors, (3425), 3376 states have call predecessors, (3425), 3425 states have call successors, (3425) [2022-11-23 15:29:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10168 states to 10168 states and 14449 transitions. [2022-11-23 15:29:23,853 INFO L78 Accepts]: Start accepts. Automaton has 10168 states and 14449 transitions. Word has length 278 [2022-11-23 15:29:23,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:23,854 INFO L495 AbstractCegarLoop]: Abstraction has 10168 states and 14449 transitions. [2022-11-23 15:29:23,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-23 15:29:23,855 INFO L276 IsEmpty]: Start isEmpty. Operand 10168 states and 14449 transitions. [2022-11-23 15:29:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-11-23 15:29:23,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:23,866 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:29:23,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:29:23,867 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2028203910, now seen corresponding path program 1 times [2022-11-23 15:29:23,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:23,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590361426] [2022-11-23 15:29:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:23,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2022-11-23 15:29:29,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:29,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590361426] [2022-11-23 15:29:29,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590361426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:29,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:29,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:29:29,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084854030] [2022-11-23 15:29:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:29,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:29:29,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:29:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:29:29,340 INFO L87 Difference]: Start difference. First operand 10168 states and 14449 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 15:29:33,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:36,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:38,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:40,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:42,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:46,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:29:51,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:29:51,167 INFO L93 Difference]: Finished difference Result 17760 states and 25264 transitions. [2022-11-23 15:29:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:29:51,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 297 [2022-11-23 15:29:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:29:51,310 INFO L225 Difference]: With dead ends: 17760 [2022-11-23 15:29:51,324 INFO L226 Difference]: Without dead ends: 17758 [2022-11-23 15:29:51,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:29:51,353 INFO L413 NwaCegarLoop]: 3141 mSDtfsCounter, 2092 mSDsluCounter, 10880 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 14021 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:29:51,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 14021 Invalid, 2795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 2788 Invalid, 2 Unknown, 0 Unchecked, 20.2s Time] [2022-11-23 15:29:51,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17758 states. [2022-11-23 15:29:53,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17758 to 17728. [2022-11-23 15:29:53,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17728 states, 10468 states have (on average 1.2719717233473442) internal successors, (13315), 10885 states have internal predecessors, (13315), 5885 states have call successors, (5885), 1416 states have call predecessors, (5885), 1374 states have return successors, (6009), 5679 states have call predecessors, (6009), 5885 states have call successors, (6009) [2022-11-23 15:29:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17728 states to 17728 states and 25209 transitions. [2022-11-23 15:29:53,220 INFO L78 Accepts]: Start accepts. Automaton has 17728 states and 25209 transitions. Word has length 297 [2022-11-23 15:29:53,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:29:53,221 INFO L495 AbstractCegarLoop]: Abstraction has 17728 states and 25209 transitions. [2022-11-23 15:29:53,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 15:29:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 17728 states and 25209 transitions. [2022-11-23 15:29:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-23 15:29:53,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:29:53,272 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 10, 10, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:29:53,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:29:53,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:29:53,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:29:53,273 INFO L85 PathProgramCache]: Analyzing trace with hash 469522759, now seen corresponding path program 1 times [2022-11-23 15:29:53,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:29:53,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732235776] [2022-11-23 15:29:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:29:53,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:29:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:29:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2022-11-23 15:29:53,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:29:53,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732235776] [2022-11-23 15:29:53,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732235776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:29:53,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:29:53,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:29:53,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347469794] [2022-11-23 15:29:53,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:29:53,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:29:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:53,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:29:53,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:29:53,895 INFO L87 Difference]: Start difference. First operand 17728 states and 25209 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-23 15:29:57,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:00,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:02,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:04,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:05,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:09,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:09,551 INFO L93 Difference]: Finished difference Result 35308 states and 50375 transitions. [2022-11-23 15:30:09,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:30:09,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 404 [2022-11-23 15:30:09,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:09,673 INFO L225 Difference]: With dead ends: 35308 [2022-11-23 15:30:09,673 INFO L226 Difference]: Without dead ends: 17788 [2022-11-23 15:30:09,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:30:09,753 INFO L413 NwaCegarLoop]: 2609 mSDtfsCounter, 19 mSDsluCounter, 7792 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:09,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10401 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1265 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-23 15:30:09,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17788 states. [2022-11-23 15:30:11,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17788 to 17768. [2022-11-23 15:30:11,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17768 states, 10498 states have (on average 1.2711945132406173) internal successors, (13345), 10915 states have internal predecessors, (13345), 5885 states have call successors, (5885), 1416 states have call predecessors, (5885), 1384 states have return successors, (6045), 5689 states have call predecessors, (6045), 5885 states have call successors, (6045) [2022-11-23 15:30:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17768 states to 17768 states and 25275 transitions. [2022-11-23 15:30:12,052 INFO L78 Accepts]: Start accepts. Automaton has 17768 states and 25275 transitions. Word has length 404 [2022-11-23 15:30:12,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:12,054 INFO L495 AbstractCegarLoop]: Abstraction has 17768 states and 25275 transitions. [2022-11-23 15:30:12,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-23 15:30:12,055 INFO L276 IsEmpty]: Start isEmpty. Operand 17768 states and 25275 transitions. [2022-11-23 15:30:12,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-23 15:30:12,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:12,118 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 14, 14, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:30:12,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:30:12,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:30:12,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:12,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1596056362, now seen corresponding path program 1 times [2022-11-23 15:30:12,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:12,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916896441] [2022-11-23 15:30:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:12,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-23 15:30:22,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:22,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916896441] [2022-11-23 15:30:22,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916896441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:22,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:30:22,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 15:30:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862886529] [2022-11-23 15:30:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:22,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:30:22,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:22,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:30:22,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:30:22,549 INFO L87 Difference]: Start difference. First operand 17768 states and 25275 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-11-23 15:30:26,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:31,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:33,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:35,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:36,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:47,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:49,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:30:58,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:58,123 INFO L93 Difference]: Finished difference Result 28653 states and 40448 transitions. [2022-11-23 15:30:58,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 15:30:58,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) Word has length 419 [2022-11-23 15:30:58,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:58,295 INFO L225 Difference]: With dead ends: 28653 [2022-11-23 15:30:58,296 INFO L226 Difference]: Without dead ends: 28651 [2022-11-23 15:30:58,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:30:58,314 INFO L413 NwaCegarLoop]: 3291 mSDtfsCounter, 6134 mSDsluCounter, 11856 mSDsCounter, 0 mSdLazyCounter, 5885 mSolverCounterSat, 2910 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6157 SdHoareTripleChecker+Valid, 15147 SdHoareTripleChecker+Invalid, 8797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2910 IncrementalHoareTripleChecker+Valid, 5885 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:58,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6157 Valid, 15147 Invalid, 8797 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2910 Valid, 5885 Invalid, 2 Unknown, 0 Unchecked, 32.3s Time] [2022-11-23 15:30:58,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28651 states. [2022-11-23 15:31:01,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28651 to 28596. [2022-11-23 15:31:01,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28596 states, 16842 states have (on average 1.2664172901080633) internal successors, (21329), 17500 states have internal predecessors, (21329), 9375 states have call successors, (9375), 2415 states have call predecessors, (9375), 2378 states have return successors, (9654), 9105 states have call predecessors, (9654), 9375 states have call successors, (9654) [2022-11-23 15:31:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28596 states to 28596 states and 40358 transitions. [2022-11-23 15:31:01,290 INFO L78 Accepts]: Start accepts. Automaton has 28596 states and 40358 transitions. Word has length 419 [2022-11-23 15:31:01,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:31:01,291 INFO L495 AbstractCegarLoop]: Abstraction has 28596 states and 40358 transitions. [2022-11-23 15:31:01,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-11-23 15:31:01,292 INFO L276 IsEmpty]: Start isEmpty. Operand 28596 states and 40358 transitions. [2022-11-23 15:31:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-11-23 15:31:01,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:31:01,385 INFO L195 NwaCegarLoop]: trace histogram [22, 19, 19, 15, 15, 15, 15, 15, 15, 10, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:31:01,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:31:01,385 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:31:01,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:31:01,386 INFO L85 PathProgramCache]: Analyzing trace with hash 376341493, now seen corresponding path program 1 times [2022-11-23 15:31:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:31:01,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128584553] [2022-11-23 15:31:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:31:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:31:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:31:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1906 trivial. 0 not checked. [2022-11-23 15:31:01,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:31:01,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128584553] [2022-11-23 15:31:01,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128584553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:31:01,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:31:01,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:31:01,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741953598] [2022-11-23 15:31:01,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:31:01,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:31:01,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:31:01,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:31:01,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:31:01,973 INFO L87 Difference]: Start difference. First operand 28596 states and 40358 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) [2022-11-23 15:31:03,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:05,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:07,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:09,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:11,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:13,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:14,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:18,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:31:18,836 INFO L93 Difference]: Finished difference Result 57094 states and 80960 transitions. [2022-11-23 15:31:18,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:31:18,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) Word has length 571 [2022-11-23 15:31:18,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:31:19,051 INFO L225 Difference]: With dead ends: 57094 [2022-11-23 15:31:19,051 INFO L226 Difference]: Without dead ends: 28706 [2022-11-23 15:31:19,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:31:19,191 INFO L413 NwaCegarLoop]: 2606 mSDtfsCounter, 10 mSDsluCounter, 7786 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 10392 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:31:19,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 10392 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1275 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-23 15:31:19,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28706 states. [2022-11-23 15:31:21,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28706 to 28656. [2022-11-23 15:31:21,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28656 states, 16887 states have (on average 1.2657073488482264) internal successors, (21374), 17545 states have internal predecessors, (21374), 9375 states have call successors, (9375), 2415 states have call predecessors, (9375), 2393 states have return successors, (9793), 9120 states have call predecessors, (9793), 9375 states have call successors, (9793) [2022-11-23 15:31:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28656 states to 28656 states and 40542 transitions. [2022-11-23 15:31:22,284 INFO L78 Accepts]: Start accepts. Automaton has 28656 states and 40542 transitions. Word has length 571 [2022-11-23 15:31:22,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:31:22,285 INFO L495 AbstractCegarLoop]: Abstraction has 28656 states and 40542 transitions. [2022-11-23 15:31:22,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) [2022-11-23 15:31:22,285 INFO L276 IsEmpty]: Start isEmpty. Operand 28656 states and 40542 transitions. [2022-11-23 15:31:22,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2022-11-23 15:31:22,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:31:22,370 INFO L195 NwaCegarLoop]: trace histogram [21, 16, 16, 15, 15, 15, 15, 15, 15, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:31:22,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:31:22,370 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:31:22,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:31:22,371 INFO L85 PathProgramCache]: Analyzing trace with hash -52506420, now seen corresponding path program 1 times [2022-11-23 15:31:22,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:31:22,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888386973] [2022-11-23 15:31:22,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:31:22,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:31:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:31:28,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2022-11-23 15:31:28,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:31:28,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888386973] [2022-11-23 15:31:28,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888386973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:31:28,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:31:28,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 15:31:28,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224631094] [2022-11-23 15:31:28,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:31:28,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:31:28,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:31:28,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:31:28,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:31:28,787 INFO L87 Difference]: Start difference. First operand 28656 states and 40542 transitions. Second operand has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 8 states have call successors, (70), 4 states have call predecessors, (70), 5 states have return successors, (66), 9 states have call predecessors, (66), 8 states have call successors, (66) [2022-11-23 15:31:33,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:39,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:44,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:31:59,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:32:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:39,853 INFO L93 Difference]: Finished difference Result 126320 states and 179329 transitions. [2022-11-23 15:32:39,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 15:32:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 8 states have call successors, (70), 4 states have call predecessors, (70), 5 states have return successors, (66), 9 states have call predecessors, (66), 8 states have call successors, (66) Word has length 463 [2022-11-23 15:32:39,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:40,980 INFO L225 Difference]: With dead ends: 126320 [2022-11-23 15:32:40,980 INFO L226 Difference]: Without dead ends: 126318 [2022-11-23 15:32:41,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=260, Invalid=1000, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:32:41,047 INFO L413 NwaCegarLoop]: 6364 mSDtfsCounter, 13477 mSDsluCounter, 48374 mSDsCounter, 0 mSdLazyCounter, 19367 mSolverCounterSat, 8043 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13546 SdHoareTripleChecker+Valid, 54738 SdHoareTripleChecker+Invalid, 27411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 8043 IncrementalHoareTripleChecker+Valid, 19367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:41,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13546 Valid, 54738 Invalid, 27411 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [8043 Valid, 19367 Invalid, 1 Unknown, 0 Unchecked, 56.9s Time] [2022-11-23 15:32:41,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126318 states. [2022-11-23 15:32:52,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126318 to 118486. [2022-11-23 15:32:52,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118486 states, 69760 states have (on average 1.2654099770642202) internal successors, (88275), 72612 states have internal predecessors, (88275), 38688 states have call successors, (38688), 10209 states have call predecessors, (38688), 10037 states have return successors, (41062), 37349 states have call predecessors, (41062), 38688 states have call successors, (41062) [2022-11-23 15:32:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118486 states to 118486 states and 168025 transitions. [2022-11-23 15:32:53,643 INFO L78 Accepts]: Start accepts. Automaton has 118486 states and 168025 transitions. Word has length 463 [2022-11-23 15:32:53,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:53,645 INFO L495 AbstractCegarLoop]: Abstraction has 118486 states and 168025 transitions. [2022-11-23 15:32:53,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 8 states have call successors, (70), 4 states have call predecessors, (70), 5 states have return successors, (66), 9 states have call predecessors, (66), 8 states have call successors, (66) [2022-11-23 15:32:53,645 INFO L276 IsEmpty]: Start isEmpty. Operand 118486 states and 168025 transitions. [2022-11-23 15:32:53,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2022-11-23 15:32:53,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:53,915 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 15, 15, 15, 15, 15, 15, 8, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:32:53,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:32:53,916 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:53,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:53,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1595337731, now seen corresponding path program 1 times [2022-11-23 15:32:53,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:53,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144228193] [2022-11-23 15:32:53,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:53,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1828 trivial. 0 not checked. [2022-11-23 15:32:54,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:54,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144228193] [2022-11-23 15:32:54,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144228193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:54,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:54,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:32:54,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573258887] [2022-11-23 15:32:54,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:54,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:32:54,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:54,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:32:54,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:54,821 INFO L87 Difference]: Start difference. First operand 118486 states and 168025 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2022-11-23 15:32:59,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:33:01,270 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 []