./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS --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 c76818fb304a0b40bd70831524c213fb48469a57ba59c902bf604bd33d1e93eb --- 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-8393723 [2022-11-19 07:43:47,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:43:47,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:43:47,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:43:47,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:43:47,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:43:47,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:43:47,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:43:47,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:43:47,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:43:47,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:43:47,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:43:47,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:43:47,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:43:47,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:43:47,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:43:47,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:43:47,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:43:47,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:43:47,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:43:47,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:43:47,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:43:47,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:43:47,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:43:47,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:43:47,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:43:47,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:43:47,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:43:47,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:43:47,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:43:47,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:43:47,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:43:47,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:43:47,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:43:47,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:43:47,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:43:47,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:43:47,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:43:47,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:43:47,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:43:47,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:43:47,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:43:47,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:43:47,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:43:47,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:43:47,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:43:47,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:43:47,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:43:47,819 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:43:47,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:43:47,820 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:43:47,820 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:43:47,821 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:43:47,822 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:43:47,822 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:43:47,822 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:43:47,823 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:43:47,823 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:43:47,823 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:43:47,823 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:43:47,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:43:47,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:43:47,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:43:47,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:43:47,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:43:47,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:43:47,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:43:47,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:43:47,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:43:47,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:43:47,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:43:47,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:43:47,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:43:47,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:43:47,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:43:47,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:43:47,830 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:43:47,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:43:47,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:43:47,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:43:47,831 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_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c76818fb304a0b40bd70831524c213fb48469a57ba59c902bf604bd33d1e93eb [2022-11-19 07:43:48,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:43:48,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:43:48,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:43:48,250 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:43:48,251 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:43:48,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-11-19 07:43:48,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/data/c67831e68/98da8a900c5740ad8470fcf5b0c57681/FLAG69d1261e0 [2022-11-19 07:43:49,513 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:43:49,514 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-11-19 07:43:49,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/data/c67831e68/98da8a900c5740ad8470fcf5b0c57681/FLAG69d1261e0 [2022-11-19 07:43:49,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/data/c67831e68/98da8a900c5740ad8470fcf5b0c57681 [2022-11-19 07:43:49,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:43:49,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:43:49,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:43:49,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:43:49,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:43:49,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:49" (1/1) ... [2022-11-19 07:43:49,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba67dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:49, skipping insertion in model container [2022-11-19 07:43:49,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:49" (1/1) ... [2022-11-19 07:43:49,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:43:50,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:43:53,427 WARN L234 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_20263151-cdd3-4718-ba4a-13fa91b8369e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315653,315666] [2022-11-19 07:43:53,433 WARN L234 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_20263151-cdd3-4718-ba4a-13fa91b8369e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315798,315811] [2022-11-19 07:43:53,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:43:53,499 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:43:54,051 WARN L234 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_20263151-cdd3-4718-ba4a-13fa91b8369e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315653,315666] [2022-11-19 07:43:54,052 WARN L234 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_20263151-cdd3-4718-ba4a-13fa91b8369e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315798,315811] [2022-11-19 07:43:54,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:43:54,271 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:43:54,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54 WrapperNode [2022-11-19 07:43:54,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:43:54,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:43:54,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:43:54,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:43:54,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,643 INFO L138 Inliner]: procedures = 390, calls = 1871, calls flagged for inlining = 177, calls inlined = 157, statements flattened = 4326 [2022-11-19 07:43:54,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:43:54,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:43:54,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:43:54,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:43:54,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:54,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:43:54,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:43:54,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:43:54,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:43:54,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (1/1) ... [2022-11-19 07:43:55,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:43:55,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:55,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:43:55,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:43:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:43:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:43:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-19 07:43:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-19 07:43:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_89 [2022-11-19 07:43:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_89 [2022-11-19 07:43:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:43:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:43:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:43:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:43:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-11-19 07:43:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-11-19 07:43:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-11-19 07:43:55,125 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-11-19 07:43:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-11-19 07:43:55,125 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-11-19 07:43:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:43:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-11-19 07:43:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-11-19 07:43:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:43:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:43:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-19 07:43:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-19 07:43:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:43:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:43:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:43:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:43:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:43:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:43:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:43:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:43:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:43:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-19 07:43:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-19 07:43:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_103 [2022-11-19 07:43:55,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_103 [2022-11-19 07:43:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:43:55,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:43:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-11-19 07:43:55,130 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-11-19 07:43:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:43:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:43:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:43:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:43:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:43:55,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:43:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:43:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:43:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:43:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:43:55,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:43:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-11-19 07:43:55,135 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-11-19 07:43:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-11-19 07:43:55,136 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-11-19 07:43:55,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:43:55,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:43:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:43:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:43:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:43:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:43:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-11-19 07:43:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-11-19 07:43:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:43:55,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:43:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-11-19 07:43:55,139 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-11-19 07:43:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:43:55,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:43:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-11-19 07:43:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-11-19 07:43:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-11-19 07:43:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-11-19 07:43:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:43:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-11-19 07:43:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-11-19 07:43:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-11-19 07:43:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-11-19 07:43:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:43:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:43:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:43:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:43:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:43:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:43:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:43:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:43:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:43:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:43:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:43:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:43:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:43:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:43:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:43:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 07:43:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 07:43:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:43:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:43:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-11-19 07:43:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-11-19 07:43:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:43:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:43:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:43:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:43:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:43:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:43:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:43:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:43:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-11-19 07:43:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-11-19 07:43:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:43:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:43:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:43:55,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:43:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:43:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:43:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:43:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:43:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:43:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:43:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:43:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:43:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:43:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:43:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:43:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 07:43:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 07:43:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:43:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:43:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 07:43:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 07:43:55,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:43:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:43:55,168 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 07:43:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 07:43:55,168 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2022-11-19 07:43:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2022-11-19 07:43:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-11-19 07:43:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-11-19 07:43:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 07:43:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 07:43:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:43:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:43:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 07:43:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 07:43:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2022-11-19 07:43:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2022-11-19 07:43:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:43:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-19 07:43:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-19 07:43:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:43:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:43:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2022-11-19 07:43:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2022-11-19 07:43:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-11-19 07:43:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-11-19 07:43:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:43:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:43:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:43:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:43:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-11-19 07:43:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-11-19 07:43:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-11-19 07:43:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-11-19 07:43:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 07:43:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 07:43:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-11-19 07:43:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-11-19 07:43:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 07:43:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 07:43:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:43:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-19 07:43:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-19 07:43:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:43:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:43:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-11-19 07:43:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-11-19 07:43:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-19 07:43:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-19 07:43:56,245 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:43:56,253 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:43:56,706 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:44:01,074 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:44:01,077 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:44:01,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8566-1: assume -9223372036854775808 <= #t~ret674#1 && #t~ret674#1 <= 9223372036854775807;havoc #t~ret674#1; [2022-11-19 07:44:01,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8566: SUMMARY for call #t~ret674#1 := schedule_timeout_interruptible(1); srcloc: null [2022-11-19 07:44:01,384 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 2096896 == ~tmp___4~7#1 then ~tmp___4~7#1 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-11-19 07:44:01,384 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 2096896 == ~tmp___4~7#1 then ~tmp___4~7#1 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-11-19 07:44:01,385 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8570: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-11-19 07:44:01,385 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8570: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-11-19 07:44:01,613 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:44:03,399 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:44:03,400 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-19 07:44:03,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:03 BoogieIcfgContainer [2022-11-19 07:44:03,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:44:03,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:44:03,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:44:03,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:44:03,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:49" (1/3) ... [2022-11-19 07:44:03,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1081a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:03, skipping insertion in model container [2022-11-19 07:44:03,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:54" (2/3) ... [2022-11-19 07:44:03,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1081a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:03, skipping insertion in model container [2022-11-19 07:44:03,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:03" (3/3) ... [2022-11-19 07:44:03,417 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-11-19 07:44:03,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:44:03,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:44:03,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:44:03,552 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;@801abb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:44:03,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:44:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 1399 states, 751 states have (on average 1.315579227696405) internal successors, (988), 799 states have internal predecessors, (988), 569 states have call successors, (569), 80 states have call predecessors, (569), 79 states have return successors, (564), 548 states have call predecessors, (564), 564 states have call successors, (564) [2022-11-19 07:44:03,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-19 07:44:03,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:03,623 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 07:44:03,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:03,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:03,633 INFO L85 PathProgramCache]: Analyzing trace with hash -167230270, now seen corresponding path program 1 times [2022-11-19 07:44:03,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:03,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311103010] [2022-11-19 07:44:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:03,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:04,699 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-19 07:44:04,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:04,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311103010] [2022-11-19 07:44:04,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311103010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:04,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:04,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:04,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123017180] [2022-11-19 07:44:04,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:04,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:04,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:04,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:04,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:04,756 INFO L87 Difference]: Start difference. First operand has 1399 states, 751 states have (on average 1.315579227696405) internal successors, (988), 799 states have internal predecessors, (988), 569 states have call successors, (569), 80 states have call predecessors, (569), 79 states have return successors, (564), 548 states have call predecessors, (564), 564 states have call successors, (564) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 07:44:06,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:06,856 INFO L93 Difference]: Finished difference Result 3996 states and 6127 transitions. [2022-11-19 07:44:06,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:06,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 102 [2022-11-19 07:44:06,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:06,908 INFO L225 Difference]: With dead ends: 3996 [2022-11-19 07:44:06,908 INFO L226 Difference]: Without dead ends: 2552 [2022-11-19 07:44:06,927 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 [2022-11-19 07:44:06,931 INFO L413 NwaCegarLoop]: 2631 mSDtfsCounter, 1881 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 4515 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:06,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1881 Valid, 4515 Invalid, 411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 07:44:06,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2022-11-19 07:44:07,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2548. [2022-11-19 07:44:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 1371 states have (on average 1.3078045222465353) internal successors, (1793), 1460 states have internal predecessors, (1793), 1030 states have call successors, (1030), 148 states have call predecessors, (1030), 146 states have return successors, (1037), 993 states have call predecessors, (1037), 1030 states have call successors, (1037) [2022-11-19 07:44:07,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3860 transitions. [2022-11-19 07:44:07,425 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3860 transitions. Word has length 102 [2022-11-19 07:44:07,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:07,426 INFO L495 AbstractCegarLoop]: Abstraction has 2548 states and 3860 transitions. [2022-11-19 07:44:07,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 07:44:07,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3860 transitions. [2022-11-19 07:44:07,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-19 07:44:07,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:07,442 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-19 07:44:07,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:44:07,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:07,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:07,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1724069174, now seen corresponding path program 1 times [2022-11-19 07:44:07,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:07,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951982824] [2022-11-19 07:44:07,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:07,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-19 07:44:08,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:08,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951982824] [2022-11-19 07:44:08,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951982824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:08,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:08,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804388380] [2022-11-19 07:44:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:08,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:08,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:08,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:08,038 INFO L87 Difference]: Start difference. First operand 2548 states and 3860 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 07:44:09,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:09,870 INFO L93 Difference]: Finished difference Result 6602 states and 9979 transitions. [2022-11-19 07:44:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:09,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 151 [2022-11-19 07:44:09,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:09,907 INFO L225 Difference]: With dead ends: 6602 [2022-11-19 07:44:09,907 INFO L226 Difference]: Without dead ends: 4063 [2022-11-19 07:44:09,925 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 [2022-11-19 07:44:09,926 INFO L413 NwaCegarLoop]: 2247 mSDtfsCounter, 1218 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 4082 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:09,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 4082 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-19 07:44:09,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2022-11-19 07:44:10,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 4059. [2022-11-19 07:44:10,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4059 states, 2214 states have (on average 1.3062330623306233) internal successors, (2892), 2355 states have internal predecessors, (2892), 1600 states have call successors, (1600), 246 states have call predecessors, (1600), 244 states have return successors, (1607), 1545 states have call predecessors, (1607), 1600 states have call successors, (1607) [2022-11-19 07:44:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 6099 transitions. [2022-11-19 07:44:10,380 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 6099 transitions. Word has length 151 [2022-11-19 07:44:10,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:10,382 INFO L495 AbstractCegarLoop]: Abstraction has 4059 states and 6099 transitions. [2022-11-19 07:44:10,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 07:44:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 6099 transitions. [2022-11-19 07:44:10,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-19 07:44:10,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:10,398 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 07:44:10,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:44:10,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:10,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:10,410 INFO L85 PathProgramCache]: Analyzing trace with hash 276632437, now seen corresponding path program 1 times [2022-11-19 07:44:10,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:10,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716413050] [2022-11-19 07:44:10,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:10,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-19 07:44:10,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:10,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716413050] [2022-11-19 07:44:10,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716413050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:10,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:10,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:10,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035938501] [2022-11-19 07:44:10,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:10,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:10,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:10,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:10,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:10,724 INFO L87 Difference]: Start difference. First operand 4059 states and 6099 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-19 07:44:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:13,175 INFO L93 Difference]: Finished difference Result 10783 states and 16146 transitions. [2022-11-19 07:44:13,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:13,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 202 [2022-11-19 07:44:13,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:13,237 INFO L225 Difference]: With dead ends: 10783 [2022-11-19 07:44:13,238 INFO L226 Difference]: Without dead ends: 6733 [2022-11-19 07:44:13,270 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 [2022-11-19 07:44:13,278 INFO L413 NwaCegarLoop]: 2367 mSDtfsCounter, 1859 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 4190 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:13,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 4190 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 07:44:13,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6733 states. [2022-11-19 07:44:13,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6733 to 6728. [2022-11-19 07:44:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6728 states, 3681 states have (on average 1.2961151860907363) internal successors, (4771), 3913 states have internal predecessors, (4771), 2625 states have call successors, (2625), 426 states have call predecessors, (2625), 421 states have return successors, (2640), 2531 states have call predecessors, (2640), 2625 states have call successors, (2640) [2022-11-19 07:44:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6728 states to 6728 states and 10036 transitions. [2022-11-19 07:44:14,116 INFO L78 Accepts]: Start accepts. Automaton has 6728 states and 10036 transitions. Word has length 202 [2022-11-19 07:44:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:14,117 INFO L495 AbstractCegarLoop]: Abstraction has 6728 states and 10036 transitions. [2022-11-19 07:44:14,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-19 07:44:14,119 INFO L276 IsEmpty]: Start isEmpty. Operand 6728 states and 10036 transitions. [2022-11-19 07:44:14,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-19 07:44:14,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:14,144 INFO L195 NwaCegarLoop]: trace histogram [10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:14,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:44:14,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:14,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:14,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1279039212, now seen corresponding path program 1 times [2022-11-19 07:44:14,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:14,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96074707] [2022-11-19 07:44:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:14,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:14,745 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-19 07:44:14,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:14,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96074707] [2022-11-19 07:44:14,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96074707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:14,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:14,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692991785] [2022-11-19 07:44:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:14,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:14,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:14,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:14,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:14,749 INFO L87 Difference]: Start difference. First operand 6728 states and 10036 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2022-11-19 07:44:17,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:17,794 INFO L93 Difference]: Finished difference Result 15371 states and 22887 transitions. [2022-11-19 07:44:17,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:17,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 196 [2022-11-19 07:44:17,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:17,874 INFO L225 Difference]: With dead ends: 15371 [2022-11-19 07:44:17,874 INFO L226 Difference]: Without dead ends: 8652 [2022-11-19 07:44:17,914 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 [2022-11-19 07:44:17,920 INFO L413 NwaCegarLoop]: 2981 mSDtfsCounter, 1227 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 4808 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:17,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 4808 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:44:17,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8652 states. [2022-11-19 07:44:18,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8652 to 8646. [2022-11-19 07:44:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8646 states, 4778 states have (on average 1.2925910422771034) internal successors, (6176), 5071 states have internal predecessors, (6176), 3304 states have call successors, (3304), 568 states have call predecessors, (3304), 563 states have return successors, (3319), 3190 states have call predecessors, (3319), 3304 states have call successors, (3319) [2022-11-19 07:44:18,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8646 states to 8646 states and 12799 transitions. [2022-11-19 07:44:18,908 INFO L78 Accepts]: Start accepts. Automaton has 8646 states and 12799 transitions. Word has length 196 [2022-11-19 07:44:18,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:18,909 INFO L495 AbstractCegarLoop]: Abstraction has 8646 states and 12799 transitions. [2022-11-19 07:44:18,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2022-11-19 07:44:18,909 INFO L276 IsEmpty]: Start isEmpty. Operand 8646 states and 12799 transitions. [2022-11-19 07:44:18,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-19 07:44:18,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:18,923 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-19 07:44:18,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:44:18,924 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:18,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:18,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1029349949, now seen corresponding path program 1 times [2022-11-19 07:44:18,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:18,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067588998] [2022-11-19 07:44:18,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:18,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-11-19 07:44:19,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:19,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067588998] [2022-11-19 07:44:19,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067588998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:19,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:19,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:19,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897490184] [2022-11-19 07:44:19,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:19,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:19,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:19,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:19,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:19,501 INFO L87 Difference]: Start difference. First operand 8646 states and 12799 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:44:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:21,776 INFO L93 Difference]: Finished difference Result 17337 states and 25669 transitions. [2022-11-19 07:44:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:21,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 258 [2022-11-19 07:44:21,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:21,864 INFO L225 Difference]: With dead ends: 17337 [2022-11-19 07:44:21,864 INFO L226 Difference]: Without dead ends: 8700 [2022-11-19 07:44:21,906 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 [2022-11-19 07:44:21,907 INFO L413 NwaCegarLoop]: 1869 mSDtfsCounter, 7 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3730 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:21,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3730 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 07:44:21,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8700 states. [2022-11-19 07:44:22,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8700 to 8652. [2022-11-19 07:44:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8652 states, 4784 states have (on average 1.2922240802675586) internal successors, (6182), 5077 states have internal predecessors, (6182), 3304 states have call successors, (3304), 568 states have call predecessors, (3304), 563 states have return successors, (3319), 3190 states have call predecessors, (3319), 3304 states have call successors, (3319) [2022-11-19 07:44:22,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 12805 transitions. [2022-11-19 07:44:22,603 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 12805 transitions. Word has length 258 [2022-11-19 07:44:22,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:22,606 INFO L495 AbstractCegarLoop]: Abstraction has 8652 states and 12805 transitions. [2022-11-19 07:44:22,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:44:22,606 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 12805 transitions. [2022-11-19 07:44:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-19 07:44:22,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:22,620 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-19 07:44:22,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:44:22,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:22,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:22,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1657175614, now seen corresponding path program 1 times [2022-11-19 07:44:22,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:22,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477578571] [2022-11-19 07:44:22,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:22,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:23,504 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-11-19 07:44:23,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:23,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477578571] [2022-11-19 07:44:23,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477578571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:23,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:23,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:23,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701894969] [2022-11-19 07:44:23,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:23,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:23,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:23,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:23,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:23,508 INFO L87 Difference]: Start difference. First operand 8652 states and 12805 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:44:26,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:26,400 INFO L93 Difference]: Finished difference Result 20858 states and 30981 transitions. [2022-11-19 07:44:26,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:26,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 263 [2022-11-19 07:44:26,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:26,524 INFO L225 Difference]: With dead ends: 20858 [2022-11-19 07:44:26,524 INFO L226 Difference]: Without dead ends: 12215 [2022-11-19 07:44:26,585 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 [2022-11-19 07:44:26,586 INFO L413 NwaCegarLoop]: 3239 mSDtfsCounter, 1839 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 4817 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:26,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 4817 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 07:44:26,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12215 states. [2022-11-19 07:44:27,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12215 to 12209. [2022-11-19 07:44:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12209 states, 6668 states have (on average 1.2907918416316737) internal successors, (8607), 7096 states have internal predecessors, (8607), 4755 states have call successors, (4755), 790 states have call predecessors, (4755), 785 states have return successors, (4770), 4587 states have call predecessors, (4770), 4755 states have call successors, (4770) [2022-11-19 07:44:27,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12209 states to 12209 states and 18132 transitions. [2022-11-19 07:44:27,994 INFO L78 Accepts]: Start accepts. Automaton has 12209 states and 18132 transitions. Word has length 263 [2022-11-19 07:44:27,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:27,994 INFO L495 AbstractCegarLoop]: Abstraction has 12209 states and 18132 transitions. [2022-11-19 07:44:27,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:44:27,995 INFO L276 IsEmpty]: Start isEmpty. Operand 12209 states and 18132 transitions. [2022-11-19 07:44:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-11-19 07:44:28,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:28,009 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:28,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:44:28,009 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:28,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash 884369384, now seen corresponding path program 1 times [2022-11-19 07:44:28,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:28,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311382377] [2022-11-19 07:44:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:28,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2022-11-19 07:44:28,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:28,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311382377] [2022-11-19 07:44:28,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311382377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:28,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:28,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:28,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315925793] [2022-11-19 07:44:28,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:28,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:28,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:28,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:28,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:28,685 INFO L87 Difference]: Start difference. First operand 12209 states and 18132 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-19 07:44:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:31,596 INFO L93 Difference]: Finished difference Result 26341 states and 39088 transitions. [2022-11-19 07:44:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:31,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 305 [2022-11-19 07:44:31,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:31,704 INFO L225 Difference]: With dead ends: 26341 [2022-11-19 07:44:31,705 INFO L226 Difference]: Without dead ends: 14141 [2022-11-19 07:44:31,774 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 [2022-11-19 07:44:31,775 INFO L413 NwaCegarLoop]: 2867 mSDtfsCounter, 1237 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 4694 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:31,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 4694 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-19 07:44:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14141 states. [2022-11-19 07:44:32,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14141 to 14135. [2022-11-19 07:44:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14135 states, 7782 states have (on average 1.2907992803906452) internal successors, (10045), 8271 states have internal predecessors, (10045), 5426 states have call successors, (5426), 931 states have call predecessors, (5426), 926 states have return successors, (5441), 5238 states have call predecessors, (5441), 5426 states have call successors, (5441) [2022-11-19 07:44:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14135 states to 14135 states and 20912 transitions. [2022-11-19 07:44:33,046 INFO L78 Accepts]: Start accepts. Automaton has 14135 states and 20912 transitions. Word has length 305 [2022-11-19 07:44:33,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:33,047 INFO L495 AbstractCegarLoop]: Abstraction has 14135 states and 20912 transitions. [2022-11-19 07:44:33,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-19 07:44:33,048 INFO L276 IsEmpty]: Start isEmpty. Operand 14135 states and 20912 transitions. [2022-11-19 07:44:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-11-19 07:44:33,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:33,064 INFO L195 NwaCegarLoop]: trace histogram [16, 14, 14, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:33,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:44:33,064 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:33,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:33,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1623849424, now seen corresponding path program 1 times [2022-11-19 07:44:33,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:33,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174673431] [2022-11-19 07:44:33,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:33,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2022-11-19 07:44:33,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:33,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174673431] [2022-11-19 07:44:33,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174673431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:33,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:33,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:44:33,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418239076] [2022-11-19 07:44:33,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:33,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:44:33,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:33,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:44:33,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:44:33,796 INFO L87 Difference]: Start difference. First operand 14135 states and 20912 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:44:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:37,957 INFO L93 Difference]: Finished difference Result 31038 states and 45900 transitions. [2022-11-19 07:44:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:44:37,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) Word has length 342 [2022-11-19 07:44:37,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:38,105 INFO L225 Difference]: With dead ends: 31038 [2022-11-19 07:44:38,105 INFO L226 Difference]: Without dead ends: 16912 [2022-11-19 07:44:38,209 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 [2022-11-19 07:44:38,210 INFO L413 NwaCegarLoop]: 2955 mSDtfsCounter, 1324 mSDsluCounter, 7729 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 10684 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:38,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 10684 Invalid, 1104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 07:44:38,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16912 states. [2022-11-19 07:44:39,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16912 to 16898. [2022-11-19 07:44:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16898 states, 9311 states have (on average 1.2910535925249704) internal successors, (12021), 9894 states have internal predecessors, (12021), 6466 states have call successors, (6466), 1126 states have call predecessors, (6466), 1120 states have return successors, (6485), 6249 states have call predecessors, (6485), 6466 states have call successors, (6485) [2022-11-19 07:44:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16898 states to 16898 states and 24972 transitions. [2022-11-19 07:44:40,129 INFO L78 Accepts]: Start accepts. Automaton has 16898 states and 24972 transitions. Word has length 342 [2022-11-19 07:44:40,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:40,130 INFO L495 AbstractCegarLoop]: Abstraction has 16898 states and 24972 transitions. [2022-11-19 07:44:40,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:44:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 16898 states and 24972 transitions. [2022-11-19 07:44:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-11-19 07:44:40,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:40,149 INFO L195 NwaCegarLoop]: trace histogram [16, 14, 14, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:40,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:44:40,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:40,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:40,150 INFO L85 PathProgramCache]: Analyzing trace with hash -46161565, now seen corresponding path program 1 times [2022-11-19 07:44:40,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:40,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734995151] [2022-11-19 07:44:40,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:40,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2022-11-19 07:44:40,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:40,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734995151] [2022-11-19 07:44:40,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734995151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:40,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:40,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:44:40,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007489048] [2022-11-19 07:44:40,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:40,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:44:40,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:40,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:44:40,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:44:40,767 INFO L87 Difference]: Start difference. First operand 16898 states and 24972 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:44:45,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:45,527 INFO L93 Difference]: Finished difference Result 35703 states and 52716 transitions. [2022-11-19 07:44:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:44:45,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) Word has length 343 [2022-11-19 07:44:45,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:45,676 INFO L225 Difference]: With dead ends: 35703 [2022-11-19 07:44:45,677 INFO L226 Difference]: Without dead ends: 18814 [2022-11-19 07:44:45,789 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 [2022-11-19 07:44:45,792 INFO L413 NwaCegarLoop]: 2987 mSDtfsCounter, 1221 mSDsluCounter, 7801 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 10788 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:45,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 10788 Invalid, 1139 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-19 07:44:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18814 states. [2022-11-19 07:44:47,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18814 to 18800. [2022-11-19 07:44:47,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18800 states, 10393 states have (on average 1.2903877609929761) internal successors, (13411), 11037 states have internal predecessors, (13411), 7137 states have call successors, (7137), 1271 states have call predecessors, (7137), 1269 states have return successors, (7160), 6904 states have call predecessors, (7160), 7137 states have call successors, (7160) [2022-11-19 07:44:47,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18800 states to 18800 states and 27708 transitions. [2022-11-19 07:44:47,548 INFO L78 Accepts]: Start accepts. Automaton has 18800 states and 27708 transitions. Word has length 343 [2022-11-19 07:44:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:47,549 INFO L495 AbstractCegarLoop]: Abstraction has 18800 states and 27708 transitions. [2022-11-19 07:44:47,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:44:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 18800 states and 27708 transitions. [2022-11-19 07:44:47,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-11-19 07:44:47,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:47,569 INFO L195 NwaCegarLoop]: trace histogram [16, 14, 14, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:47,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:44:47,569 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:47,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:47,570 INFO L85 PathProgramCache]: Analyzing trace with hash 359850108, now seen corresponding path program 1 times [2022-11-19 07:44:47,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:47,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654065630] [2022-11-19 07:44:47,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:47,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:48,311 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2022-11-19 07:44:48,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:48,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654065630] [2022-11-19 07:44:48,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654065630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:48,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:48,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:44:48,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962502264] [2022-11-19 07:44:48,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:48,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:44:48,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:48,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:44:48,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:44:48,315 INFO L87 Difference]: Start difference. First operand 18800 states and 27708 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:44:53,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:53,020 INFO L93 Difference]: Finished difference Result 39479 states and 58172 transitions. [2022-11-19 07:44:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:44:53,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) Word has length 343 [2022-11-19 07:44:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:53,109 INFO L225 Difference]: With dead ends: 39479 [2022-11-19 07:44:53,109 INFO L226 Difference]: Without dead ends: 20688 [2022-11-19 07:44:53,193 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 [2022-11-19 07:44:53,194 INFO L413 NwaCegarLoop]: 2984 mSDtfsCounter, 1211 mSDsluCounter, 7801 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 10785 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:53,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 10785 Invalid, 1142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-19 07:44:53,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20688 states. [2022-11-19 07:44:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20688 to 20674. [2022-11-19 07:44:54,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20674 states, 11463 states have (on average 1.2901509203524384) internal successors, (14789), 12168 states have internal predecessors, (14789), 7804 states have call successors, (7804), 1408 states have call predecessors, (7804), 1406 states have return successors, (7827), 7551 states have call predecessors, (7827), 7804 states have call successors, (7827) [2022-11-19 07:44:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20674 states to 20674 states and 30420 transitions. [2022-11-19 07:44:54,758 INFO L78 Accepts]: Start accepts. Automaton has 20674 states and 30420 transitions. Word has length 343 [2022-11-19 07:44:54,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:54,759 INFO L495 AbstractCegarLoop]: Abstraction has 20674 states and 30420 transitions. [2022-11-19 07:44:54,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:44:54,760 INFO L276 IsEmpty]: Start isEmpty. Operand 20674 states and 30420 transitions. [2022-11-19 07:44:54,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-11-19 07:44:54,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:54,786 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:54,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:44:54,787 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:54,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:54,788 INFO L85 PathProgramCache]: Analyzing trace with hash 689320878, now seen corresponding path program 1 times [2022-11-19 07:44:54,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:54,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043866974] [2022-11-19 07:44:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:54,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:55,206 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-11-19 07:44:55,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:55,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043866974] [2022-11-19 07:44:55,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043866974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:55,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:55,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:55,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511352112] [2022-11-19 07:44:55,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:55,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:55,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:55,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:55,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:55,213 INFO L87 Difference]: Start difference. First operand 20674 states and 30420 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:44:58,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:58,381 INFO L93 Difference]: Finished difference Result 43861 states and 64554 transitions. [2022-11-19 07:44:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:58,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 355 [2022-11-19 07:44:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:58,488 INFO L225 Difference]: With dead ends: 43861 [2022-11-19 07:44:58,489 INFO L226 Difference]: Without dead ends: 23196 [2022-11-19 07:44:58,566 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 [2022-11-19 07:44:58,567 INFO L413 NwaCegarLoop]: 3035 mSDtfsCounter, 1316 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:58,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 4865 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 07:44:58,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23196 states. [2022-11-19 07:45:00,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23196 to 23190. [2022-11-19 07:45:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23190 states, 12861 states have (on average 1.2914236840059092) internal successors, (16609), 13659 states have internal predecessors, (16609), 8751 states have call successors, (8751), 1581 states have call predecessors, (8751), 1577 states have return successors, (8774), 8468 states have call predecessors, (8774), 8751 states have call successors, (8774) [2022-11-19 07:45:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23190 states to 23190 states and 34134 transitions. [2022-11-19 07:45:00,284 INFO L78 Accepts]: Start accepts. Automaton has 23190 states and 34134 transitions. Word has length 355 [2022-11-19 07:45:00,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:00,286 INFO L495 AbstractCegarLoop]: Abstraction has 23190 states and 34134 transitions. [2022-11-19 07:45:00,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:45:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 23190 states and 34134 transitions. [2022-11-19 07:45:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-11-19 07:45:00,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:00,493 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-11-19 07:45:00,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:45:00,493 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:00,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:00,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1393137695, now seen corresponding path program 1 times [2022-11-19 07:45:00,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:00,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831068974] [2022-11-19 07:45:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:00,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-11-19 07:45:00,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:00,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831068974] [2022-11-19 07:45:00,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831068974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:00,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:00,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:45:00,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793702214] [2022-11-19 07:45:00,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:00,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:45:00,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:00,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:45:00,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:45:00,897 INFO L87 Difference]: Start difference. First operand 23190 states and 34134 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:45:03,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:03,401 INFO L93 Difference]: Finished difference Result 48279 states and 71044 transitions. [2022-11-19 07:45:03,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:45:03,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 363 [2022-11-19 07:45:03,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:03,510 INFO L225 Difference]: With dead ends: 48279 [2022-11-19 07:45:03,510 INFO L226 Difference]: Without dead ends: 25098 [2022-11-19 07:45:03,587 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 [2022-11-19 07:45:03,588 INFO L413 NwaCegarLoop]: 2804 mSDtfsCounter, 1222 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 4637 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:03,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 4637 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:45:03,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25098 states. [2022-11-19 07:45:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25098 to 25092. [2022-11-19 07:45:05,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25092 states, 13951 states have (on average 1.2913052827754283) internal successors, (18015), 14810 states have internal predecessors, (18015), 9422 states have call successors, (9422), 1722 states have call predecessors, (9422), 1718 states have return successors, (9445), 9119 states have call predecessors, (9445), 9422 states have call successors, (9445) [2022-11-19 07:45:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25092 states to 25092 states and 36882 transitions. [2022-11-19 07:45:05,408 INFO L78 Accepts]: Start accepts. Automaton has 25092 states and 36882 transitions. Word has length 363 [2022-11-19 07:45:05,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:05,409 INFO L495 AbstractCegarLoop]: Abstraction has 25092 states and 36882 transitions. [2022-11-19 07:45:05,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:45:05,410 INFO L276 IsEmpty]: Start isEmpty. Operand 25092 states and 36882 transitions. [2022-11-19 07:45:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-19 07:45:05,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:05,437 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:45:05,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:45:05,438 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:05,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:05,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1348401681, now seen corresponding path program 1 times [2022-11-19 07:45:05,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:05,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50804561] [2022-11-19 07:45:05,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:05,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2022-11-19 07:45:05,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:05,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50804561] [2022-11-19 07:45:05,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50804561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:05,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:05,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:45:05,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476351773] [2022-11-19 07:45:05,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:05,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:45:05,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:05,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:45:05,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:45:05,861 INFO L87 Difference]: Start difference. First operand 25092 states and 36882 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-19 07:45:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:08,908 INFO L93 Difference]: Finished difference Result 52043 states and 76484 transitions. [2022-11-19 07:45:08,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:45:08,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 373 [2022-11-19 07:45:08,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:09,058 INFO L225 Difference]: With dead ends: 52043 [2022-11-19 07:45:09,058 INFO L226 Difference]: Without dead ends: 26960 [2022-11-19 07:45:09,158 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 [2022-11-19 07:45:09,159 INFO L413 NwaCegarLoop]: 2983 mSDtfsCounter, 1220 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 4812 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:09,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 4812 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 07:45:09,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26960 states. [2022-11-19 07:45:10,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26960 to 26954. [2022-11-19 07:45:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26954 states, 15009 states have (on average 1.2912918915317477) internal successors, (19381), 15929 states have internal predecessors, (19381), 10089 states have call successors, (10089), 1859 states have call predecessors, (10089), 1855 states have return successors, (10112), 9766 states have call predecessors, (10112), 10089 states have call successors, (10112) [2022-11-19 07:45:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26954 states to 26954 states and 39582 transitions. [2022-11-19 07:45:10,797 INFO L78 Accepts]: Start accepts. Automaton has 26954 states and 39582 transitions. Word has length 373 [2022-11-19 07:45:10,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:10,797 INFO L495 AbstractCegarLoop]: Abstraction has 26954 states and 39582 transitions. [2022-11-19 07:45:10,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-19 07:45:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 26954 states and 39582 transitions. [2022-11-19 07:45:10,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-11-19 07:45:10,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:10,822 INFO L195 NwaCegarLoop]: trace histogram [19, 14, 14, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:45:10,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:45:10,822 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:10,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:10,823 INFO L85 PathProgramCache]: Analyzing trace with hash -962903233, now seen corresponding path program 1 times [2022-11-19 07:45:10,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:10,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16599813] [2022-11-19 07:45:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:10,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2022-11-19 07:45:11,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:11,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16599813] [2022-11-19 07:45:11,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16599813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:11,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:11,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:45:11,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106178270] [2022-11-19 07:45:11,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:11,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:45:11,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:11,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:45:11,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:45:11,543 INFO L87 Difference]: Start difference. First operand 26954 states and 39582 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-19 07:45:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:16,407 INFO L93 Difference]: Finished difference Result 56559 states and 83041 transitions. [2022-11-19 07:45:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:45:16,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 390 [2022-11-19 07:45:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:16,534 INFO L225 Difference]: With dead ends: 56559 [2022-11-19 07:45:16,535 INFO L226 Difference]: Without dead ends: 29614 [2022-11-19 07:45:16,614 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 [2022-11-19 07:45:16,615 INFO L413 NwaCegarLoop]: 2847 mSDtfsCounter, 1323 mSDsluCounter, 7513 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 10360 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:16,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 10360 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-19 07:45:16,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29614 states. [2022-11-19 07:45:18,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29614 to 27754. [2022-11-19 07:45:18,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27754 states, 15434 states have (on average 1.2915640793054295) internal successors, (19934), 16382 states have internal predecessors, (19934), 10401 states have call successors, (10401), 1918 states have call predecessors, (10401), 1918 states have return successors, (10428), 10074 states have call predecessors, (10428), 10401 states have call successors, (10428) [2022-11-19 07:45:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27754 states to 27754 states and 40763 transitions. [2022-11-19 07:45:18,246 INFO L78 Accepts]: Start accepts. Automaton has 27754 states and 40763 transitions. Word has length 390 [2022-11-19 07:45:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:18,248 INFO L495 AbstractCegarLoop]: Abstraction has 27754 states and 40763 transitions. [2022-11-19 07:45:18,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-19 07:45:18,248 INFO L276 IsEmpty]: Start isEmpty. Operand 27754 states and 40763 transitions. [2022-11-19 07:45:18,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-11-19 07:45:18,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:18,269 INFO L195 NwaCegarLoop]: trace histogram [19, 14, 14, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:45:18,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 07:45:18,269 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:18,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:18,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1482409688, now seen corresponding path program 1 times [2022-11-19 07:45:18,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:18,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281108631] [2022-11-19 07:45:18,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:18,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-11-19 07:45:18,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:18,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281108631] [2022-11-19 07:45:18,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281108631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:18,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:18,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:45:18,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877102733] [2022-11-19 07:45:18,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:18,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:45:18,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:18,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:45:18,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:45:18,839 INFO L87 Difference]: Start difference. First operand 27754 states and 40763 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-19 07:45:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:23,767 INFO L93 Difference]: Finished difference Result 57419 states and 84298 transitions. [2022-11-19 07:45:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:45:23,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 391 [2022-11-19 07:45:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:23,889 INFO L225 Difference]: With dead ends: 57419 [2022-11-19 07:45:23,889 INFO L226 Difference]: Without dead ends: 29674 [2022-11-19 07:45:23,976 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 [2022-11-19 07:45:23,977 INFO L413 NwaCegarLoop]: 2985 mSDtfsCounter, 1221 mSDsluCounter, 7797 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 10782 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:23,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 10782 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-19 07:45:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29674 states. [2022-11-19 07:45:25,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29674 to 27794. [2022-11-19 07:45:25,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27794 states, 15458 states have (on average 1.2911113986285419) internal successors, (19958), 16406 states have internal predecessors, (19958), 10405 states have call successors, (10405), 1926 states have call predecessors, (10405), 1930 states have return successors, (10436), 10082 states have call predecessors, (10436), 10405 states have call successors, (10436) [2022-11-19 07:45:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27794 states to 27794 states and 40799 transitions. [2022-11-19 07:45:25,773 INFO L78 Accepts]: Start accepts. Automaton has 27794 states and 40799 transitions. Word has length 391 [2022-11-19 07:45:25,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:25,775 INFO L495 AbstractCegarLoop]: Abstraction has 27794 states and 40799 transitions. [2022-11-19 07:45:25,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-19 07:45:25,776 INFO L276 IsEmpty]: Start isEmpty. Operand 27794 states and 40799 transitions. [2022-11-19 07:45:25,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-11-19 07:45:25,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:25,795 INFO L195 NwaCegarLoop]: trace histogram [19, 14, 14, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:45:25,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:45:25,795 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:25,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:25,796 INFO L85 PathProgramCache]: Analyzing trace with hash 614126310, now seen corresponding path program 1 times [2022-11-19 07:45:25,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:25,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638449270] [2022-11-19 07:45:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:25,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 120 proven. 24 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2022-11-19 07:45:26,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:26,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638449270] [2022-11-19 07:45:26,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638449270] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:45:26,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915990993] [2022-11-19 07:45:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:26,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:45:26,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:45:26,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:45:26,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20263151-cdd3-4718-ba4a-13fa91b8369e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:45:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:28,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:45:28,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:45:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2022-11-19 07:45:28,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:45:28,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915990993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:28,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:45:28,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-11-19 07:45:28,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678989800] [2022-11-19 07:45:28,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:28,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:45:28,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:28,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:45:28,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:45:28,623 INFO L87 Difference]: Start difference. First operand 27794 states and 40799 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (48), 3 states have call predecessors, (48), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-19 07:45:33,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:33,646 INFO L93 Difference]: Finished difference Result 57487 states and 84390 transitions. [2022-11-19 07:45:33,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:45:33,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (48), 3 states have call predecessors, (48), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 392 [2022-11-19 07:45:33,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.