./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/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 abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 --- 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 07:59:38,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:59:38,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:59:38,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:59:38,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:59:38,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:59:38,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:59:38,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:59:38,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:59:38,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:59:38,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:59:38,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:59:38,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:59:38,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:59:38,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:59:38,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:59:38,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:59:38,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:59:38,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:59:38,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:59:38,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:59:38,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:59:38,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:59:38,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:59:38,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:59:38,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:59:38,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:59:38,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:59:38,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:59:38,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:59:38,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:59:38,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:59:38,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:59:38,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:59:38,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:59:38,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:59:38,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:59:38,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:59:38,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:59:38,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:59:38,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:59:38,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:59:38,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:59:38,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:59:38,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:59:38,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:59:38,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:59:38,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:59:38,194 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:59:38,194 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:59:38,194 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:59:38,195 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:59:38,196 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:59:38,196 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:59:38,197 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:59:38,197 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:59:38,197 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:59:38,197 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:59:38,197 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:59:38,198 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:59:38,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:59:38,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:59:38,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:59:38,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:59:38,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:59:38,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:59:38,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:59:38,202 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:59:38,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:59:38,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:59:38,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:59:38,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:38,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:59:38,204 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:59:38,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:59:38,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:59:38,204 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:59:38,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:59:38,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:59:38,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:59:38,205 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 [2022-11-19 07:59:38,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:59:38,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:59:38,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:59:38,545 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:59:38,546 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:59:38,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-19 07:59:38,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data/c7538792d/d6ae7da623ce4aeeb835297d32fa4383/FLAGa8de7df2d [2022-11-19 07:59:39,663 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:59:39,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-19 07:59:39,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data/c7538792d/d6ae7da623ce4aeeb835297d32fa4383/FLAGa8de7df2d [2022-11-19 07:59:40,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data/c7538792d/d6ae7da623ce4aeeb835297d32fa4383 [2022-11-19 07:59:40,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:59:40,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:59:40,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:40,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:59:40,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:59:40,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:40" (1/1) ... [2022-11-19 07:59:40,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f497db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:40, skipping insertion in model container [2022-11-19 07:59:40,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:40" (1/1) ... [2022-11-19 07:59:40,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:59:40,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:59:44,397 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2022-11-19 07:59:44,403 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2022-11-19 07:59:44,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:44,484 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:59:45,039 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2022-11-19 07:59:45,040 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2022-11-19 07:59:45,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:45,351 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:59:45,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45 WrapperNode [2022-11-19 07:59:45,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:45,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:45,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:59:45,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:59:45,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:45,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:45,738 INFO L138 Inliner]: procedures = 556, calls = 2976, calls flagged for inlining = 291, calls inlined = 260, statements flattened = 7518 [2022-11-19 07:59:45,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:45,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:59:45,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:59:45,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:59:45,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:45,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:45,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:45,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:45,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:45,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:46,027 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:46,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:46,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:59:46,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:59:46,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:59:46,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:59:46,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (1/1) ... [2022-11-19 07:59:46,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:46,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:46,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:59:46,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:59:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-19 07:59:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-19 07:59:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:59:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:59:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-19 07:59:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-19 07:59:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:59:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:59:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2022-11-19 07:59:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2022-11-19 07:59:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:59:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:59:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:59:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:59:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:59:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:59:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 07:59:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 07:59:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2022-11-19 07:59:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2022-11-19 07:59:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 07:59:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 07:59:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:59:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:59:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:59:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:59:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:59:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:59:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:59:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:59:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:59:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:59:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:59:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:59:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:59:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2022-11-19 07:59:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2022-11-19 07:59:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:59:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:59:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:59:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:59:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:59:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-11-19 07:59:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-11-19 07:59:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:59:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:59:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 07:59:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 07:59:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:59:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:59:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:59:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2022-11-19 07:59:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2022-11-19 07:59:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:59:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:59:46,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:59:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 07:59:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 07:59:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:59:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:59:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2022-11-19 07:59:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2022-11-19 07:59:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:59:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:59:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:59:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:59:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:59:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:59:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:59:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:59:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:59:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:59:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:59:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:59:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2022-11-19 07:59:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2022-11-19 07:59:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-19 07:59:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-19 07:59:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2022-11-19 07:59:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2022-11-19 07:59:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:59:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:59:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:59:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:59:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:59:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-19 07:59:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-19 07:59:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-19 07:59:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-19 07:59:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 07:59:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 07:59:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 07:59:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 07:59:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2022-11-19 07:59:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2022-11-19 07:59:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:59:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 07:59:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 07:59:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:59:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:59:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:59:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:59:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:59:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:59:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:59:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:59:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2022-11-19 07:59:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2022-11-19 07:59:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:59:46,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:59:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 07:59:46,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 07:59:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-11-19 07:59:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-11-19 07:59:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 07:59:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 07:59:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2022-11-19 07:59:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2022-11-19 07:59:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:59:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:59:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-19 07:59:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-19 07:59:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:59:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:59:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:59:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:59:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:59:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:59:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2022-11-19 07:59:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2022-11-19 07:59:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-19 07:59:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-19 07:59:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:59:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:59:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2022-11-19 07:59:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2022-11-19 07:59:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-19 07:59:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-19 07:59:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:59:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:59:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 07:59:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 07:59:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:59:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:59:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:59:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:59:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2022-11-19 07:59:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2022-11-19 07:59:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2022-11-19 07:59:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2022-11-19 07:59:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2022-11-19 07:59:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2022-11-19 07:59:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 07:59:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:59:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:59:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2022-11-19 07:59:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2022-11-19 07:59:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2022-11-19 07:59:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2022-11-19 07:59:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:59:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:59:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:59:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:59:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-19 07:59:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-19 07:59:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:59:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:59:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 07:59:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 07:59:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-11-19 07:59:46,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-11-19 07:59:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2022-11-19 07:59:46,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2022-11-19 07:59:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2022-11-19 07:59:46,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2022-11-19 07:59:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2022-11-19 07:59:46,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2022-11-19 07:59:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:59:46,213 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:59:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:59:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2022-11-19 07:59:46,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2022-11-19 07:59:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:59:46,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:59:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:59:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-11-19 07:59:46,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-11-19 07:59:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:59:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2022-11-19 07:59:46,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2022-11-19 07:59:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2022-11-19 07:59:46,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2022-11-19 07:59:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 07:59:46,214 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 07:59:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:59:46,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:59:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-11-19 07:59:46,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-11-19 07:59:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:59:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:59:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2022-11-19 07:59:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2022-11-19 07:59:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 07:59:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 07:59:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 07:59:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 07:59:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2022-11-19 07:59:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2022-11-19 07:59:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-11-19 07:59:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-11-19 07:59:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-11-19 07:59:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-11-19 07:59:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2022-11-19 07:59:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2022-11-19 07:59:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 07:59:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 07:59:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 07:59:46,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 07:59:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:59:46,217 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:59:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2022-11-19 07:59:46,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2022-11-19 07:59:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:59:46,217 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:59:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2022-11-19 07:59:46,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2022-11-19 07:59:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2022-11-19 07:59:46,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2022-11-19 07:59:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 07:59:46,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 07:59:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:59:46,218 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:59:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:59:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2022-11-19 07:59:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2022-11-19 07:59:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:59:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:59:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:59:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:59:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:59:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:59:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2022-11-19 07:59:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2022-11-19 07:59:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2022-11-19 07:59:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2022-11-19 07:59:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 07:59:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 07:59:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2022-11-19 07:59:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2022-11-19 07:59:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:59:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:59:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:59:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:59:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:59:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:59:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 07:59:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 07:59:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 07:59:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 07:59:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:59:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-19 07:59:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-19 07:59:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-19 07:59:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-19 07:59:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:59:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:59:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 07:59:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 07:59:47,428 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:59:47,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:59:47,630 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:59:57,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:59:57,864 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:00:00,440 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:00:00,440 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 08:00:00,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:00 BoogieIcfgContainer [2022-11-19 08:00:00,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:00:00,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:00:00,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:00:00,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:00:00,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:40" (1/3) ... [2022-11-19 08:00:00,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316b97b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:00, skipping insertion in model container [2022-11-19 08:00:00,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:45" (2/3) ... [2022-11-19 08:00:00,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316b97b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:00, skipping insertion in model container [2022-11-19 08:00:00,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:00" (3/3) ... [2022-11-19 08:00:00,467 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-19 08:00:00,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:00:00,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:00:00,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:00:00,624 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;@75d6a788, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:00:00,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:00:00,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 2005 states, 1182 states have (on average 1.3121827411167513) internal successors, (1551), 1222 states have internal predecessors, (1551), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) [2022-11-19 08:00:00,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-19 08:00:00,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:00,691 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 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] [2022-11-19 08:00:00,691 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1456777961, now seen corresponding path program 1 times [2022-11-19 08:00:00,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:00,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493006993] [2022-11-19 08:00:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:00,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:01,824 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-19 08:00:01,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:01,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493006993] [2022-11-19 08:00:01,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493006993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:01,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:01,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:01,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696017599] [2022-11-19 08:00:01,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:01,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:01,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:01,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:01,881 INFO L87 Difference]: Start difference. First operand has 2005 states, 1182 states have (on average 1.3121827411167513) internal successors, (1551), 1222 states have internal predecessors, (1551), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:00:06,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:06,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:06,829 INFO L93 Difference]: Finished difference Result 5464 states and 8069 transitions. [2022-11-19 08:00:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:06,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 225 [2022-11-19 08:00:06,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:06,953 INFO L225 Difference]: With dead ends: 5464 [2022-11-19 08:00:06,953 INFO L226 Difference]: Without dead ends: 3316 [2022-11-19 08:00:07,014 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 08:00:07,035 INFO L413 NwaCegarLoop]: 3084 mSDtfsCounter, 2164 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 5569 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:07,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 5569 Invalid, 880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 862 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 08:00:07,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2022-11-19 08:00:07,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3313. [2022-11-19 08:00:07,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 1988 states have (on average 1.3138832997987928) internal successors, (2612), 2054 states have internal predecessors, (2612), 1101 states have call successors, (1101), 223 states have call predecessors, (1101), 223 states have return successors, (1102), 1079 states have call predecessors, (1102), 1101 states have call successors, (1102) [2022-11-19 08:00:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 4815 transitions. [2022-11-19 08:00:07,477 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 4815 transitions. Word has length 225 [2022-11-19 08:00:07,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:07,482 INFO L495 AbstractCegarLoop]: Abstraction has 3313 states and 4815 transitions. [2022-11-19 08:00:07,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:00:07,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 4815 transitions. [2022-11-19 08:00:07,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-19 08:00:07,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:07,520 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 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] [2022-11-19 08:00:07,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:00:07,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:07,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:07,522 INFO L85 PathProgramCache]: Analyzing trace with hash -590955197, now seen corresponding path program 1 times [2022-11-19 08:00:07,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:07,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405279206] [2022-11-19 08:00:07,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:07,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-19 08:00:08,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:08,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405279206] [2022-11-19 08:00:08,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405279206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:08,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:08,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:08,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607747995] [2022-11-19 08:00:08,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:08,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:08,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:08,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:08,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:08,085 INFO L87 Difference]: Start difference. First operand 3313 states and 4815 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:00:10,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:13,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:13,474 INFO L93 Difference]: Finished difference Result 8470 states and 12244 transitions. [2022-11-19 08:00:13,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:13,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 235 [2022-11-19 08:00:13,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:13,513 INFO L225 Difference]: With dead ends: 8470 [2022-11-19 08:00:13,514 INFO L226 Difference]: Without dead ends: 5184 [2022-11-19 08:00:13,529 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 08:00:13,531 INFO L413 NwaCegarLoop]: 2895 mSDtfsCounter, 1856 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:13,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 5267 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 850 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 08:00:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2022-11-19 08:00:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5181. [2022-11-19 08:00:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 3108 states have (on average 1.308880308880309) internal successors, (4068), 3204 states have internal predecessors, (4068), 1691 states have call successors, (1691), 382 states have call predecessors, (1691), 381 states have return successors, (1698), 1650 states have call predecessors, (1698), 1691 states have call successors, (1698) [2022-11-19 08:00:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 7457 transitions. [2022-11-19 08:00:13,843 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 7457 transitions. Word has length 235 [2022-11-19 08:00:13,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:13,845 INFO L495 AbstractCegarLoop]: Abstraction has 5181 states and 7457 transitions. [2022-11-19 08:00:13,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:00:13,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 7457 transitions. [2022-11-19 08:00:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-19 08:00:13,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:13,860 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 5, 5, 4, 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 08:00:13,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:00:13,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:13,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:13,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1864248722, now seen corresponding path program 1 times [2022-11-19 08:00:13,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:13,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185569148] [2022-11-19 08:00:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:13,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2022-11-19 08:00:14,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:14,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185569148] [2022-11-19 08:00:14,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185569148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:14,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:14,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:14,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770779501] [2022-11-19 08:00:14,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:14,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:14,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:14,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:14,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:14,447 INFO L87 Difference]: Start difference. First operand 5181 states and 7457 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:00:17,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:19,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:19,447 INFO L93 Difference]: Finished difference Result 12273 states and 17683 transitions. [2022-11-19 08:00:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:19,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 274 [2022-11-19 08:00:19,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:19,492 INFO L225 Difference]: With dead ends: 12273 [2022-11-19 08:00:19,492 INFO L226 Difference]: Without dead ends: 7119 [2022-11-19 08:00:19,515 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 08:00:19,516 INFO L413 NwaCegarLoop]: 3499 mSDtfsCounter, 1975 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 5886 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:19,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1976 Valid, 5886 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1008 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 08:00:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7119 states. [2022-11-19 08:00:19,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7119 to 7115. [2022-11-19 08:00:19,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7115 states, 4286 states have (on average 1.3135790947270183) internal successors, (5630), 4418 states have internal predecessors, (5630), 2297 states have call successors, (2297), 532 states have call predecessors, (2297), 531 states have return successors, (2306), 2241 states have call predecessors, (2306), 2297 states have call successors, (2306) [2022-11-19 08:00:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7115 states to 7115 states and 10233 transitions. [2022-11-19 08:00:19,868 INFO L78 Accepts]: Start accepts. Automaton has 7115 states and 10233 transitions. Word has length 274 [2022-11-19 08:00:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:19,869 INFO L495 AbstractCegarLoop]: Abstraction has 7115 states and 10233 transitions. [2022-11-19 08:00:19,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:00:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand 7115 states and 10233 transitions. [2022-11-19 08:00:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-19 08:00:19,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:19,887 INFO L195 NwaCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:19,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:00:19,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:19,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:19,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1846390551, now seen corresponding path program 1 times [2022-11-19 08:00:19,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:19,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282040530] [2022-11-19 08:00:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:19,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:20,501 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-11-19 08:00:20,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:20,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282040530] [2022-11-19 08:00:20,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282040530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:20,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:20,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:20,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792455846] [2022-11-19 08:00:20,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:20,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:20,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:20,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:20,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:20,505 INFO L87 Difference]: Start difference. First operand 7115 states and 10233 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-19 08:00:23,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:24,438 INFO L93 Difference]: Finished difference Result 14096 states and 20164 transitions. [2022-11-19 08:00:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:24,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 350 [2022-11-19 08:00:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:24,483 INFO L225 Difference]: With dead ends: 14096 [2022-11-19 08:00:24,483 INFO L226 Difference]: Without dead ends: 7008 [2022-11-19 08:00:24,515 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 08:00:24,516 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 2618 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2619 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:24,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2619 Valid, 3355 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-19 08:00:24,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2022-11-19 08:00:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 7006. [2022-11-19 08:00:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 4187 states have (on average 1.29997611655123) internal successors, (5443), 4315 states have internal predecessors, (5443), 2258 states have call successors, (2258), 560 states have call predecessors, (2258), 560 states have return successors, (2263), 2203 states have call predecessors, (2263), 2258 states have call successors, (2263) [2022-11-19 08:00:24,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 9964 transitions. [2022-11-19 08:00:24,944 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 9964 transitions. Word has length 350 [2022-11-19 08:00:24,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:24,945 INFO L495 AbstractCegarLoop]: Abstraction has 7006 states and 9964 transitions. [2022-11-19 08:00:24,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-19 08:00:24,946 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 9964 transitions. [2022-11-19 08:00:24,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-19 08:00:24,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:24,962 INFO L195 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 9, 9, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:24,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:00:24,962 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:24,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:24,963 INFO L85 PathProgramCache]: Analyzing trace with hash -743252685, now seen corresponding path program 1 times [2022-11-19 08:00:24,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:24,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361062751] [2022-11-19 08:00:24,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:24,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2022-11-19 08:00:25,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:25,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361062751] [2022-11-19 08:00:25,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361062751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:25,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:25,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:25,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115215798] [2022-11-19 08:00:25,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:25,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:25,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:25,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:25,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:25,618 INFO L87 Difference]: Start difference. First operand 7006 states and 9964 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-19 08:00:28,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:29,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:29,779 INFO L93 Difference]: Finished difference Result 14041 states and 20014 transitions. [2022-11-19 08:00:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:29,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 336 [2022-11-19 08:00:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:29,831 INFO L225 Difference]: With dead ends: 14041 [2022-11-19 08:00:29,831 INFO L226 Difference]: Without dead ends: 7062 [2022-11-19 08:00:29,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 08:00:29,866 INFO L413 NwaCegarLoop]: 2406 mSDtfsCounter, 8 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4803 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:29,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4803 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 804 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 08:00:29,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2022-11-19 08:00:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7010. [2022-11-19 08:00:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 4191 states have (on average 1.299689811500835) internal successors, (5447), 4319 states have internal predecessors, (5447), 2258 states have call successors, (2258), 560 states have call predecessors, (2258), 560 states have return successors, (2263), 2203 states have call predecessors, (2263), 2258 states have call successors, (2263) [2022-11-19 08:00:30,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 9968 transitions. [2022-11-19 08:00:30,287 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 9968 transitions. Word has length 336 [2022-11-19 08:00:30,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:30,288 INFO L495 AbstractCegarLoop]: Abstraction has 7010 states and 9968 transitions. [2022-11-19 08:00:30,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-19 08:00:30,289 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 9968 transitions. [2022-11-19 08:00:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-19 08:00:30,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:30,305 INFO L195 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 9, 9, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:30,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:00:30,306 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:30,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1411790654, now seen corresponding path program 1 times [2022-11-19 08:00:30,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:30,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747920436] [2022-11-19 08:00:30,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:30,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:31,238 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2022-11-19 08:00:31,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:31,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747920436] [2022-11-19 08:00:31,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747920436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:31,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:31,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:31,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959300310] [2022-11-19 08:00:31,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:31,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:31,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:31,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:31,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:31,242 INFO L87 Difference]: Start difference. First operand 7010 states and 9968 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-19 08:00:34,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:36,220 INFO L93 Difference]: Finished difference Result 15660 states and 22288 transitions. [2022-11-19 08:00:36,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:36,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 354 [2022-11-19 08:00:36,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:36,273 INFO L225 Difference]: With dead ends: 15660 [2022-11-19 08:00:36,273 INFO L226 Difference]: Without dead ends: 8677 [2022-11-19 08:00:36,305 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 08:00:36,306 INFO L413 NwaCegarLoop]: 3893 mSDtfsCounter, 1983 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 6112 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:36,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1984 Valid, 6112 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 08:00:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2022-11-19 08:00:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 8673. [2022-11-19 08:00:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8673 states, 5201 states have (on average 1.3035954624110748) internal successors, (6780), 5361 states have internal predecessors, (6780), 2773 states have call successors, (2773), 698 states have call predecessors, (2773), 698 states have return successors, (2778), 2705 states have call predecessors, (2778), 2773 states have call successors, (2778) [2022-11-19 08:00:37,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8673 states to 8673 states and 12331 transitions. [2022-11-19 08:00:37,006 INFO L78 Accepts]: Start accepts. Automaton has 8673 states and 12331 transitions. Word has length 354 [2022-11-19 08:00:37,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:37,007 INFO L495 AbstractCegarLoop]: Abstraction has 8673 states and 12331 transitions. [2022-11-19 08:00:37,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-19 08:00:37,007 INFO L276 IsEmpty]: Start isEmpty. Operand 8673 states and 12331 transitions. [2022-11-19 08:00:37,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-11-19 08:00:37,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:37,026 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 11, 11, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:37,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:00:37,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:37,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2043586535, now seen corresponding path program 1 times [2022-11-19 08:00:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:37,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739017112] [2022-11-19 08:00:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2022-11-19 08:00:37,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:37,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739017112] [2022-11-19 08:00:37,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739017112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:37,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:37,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:37,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079801126] [2022-11-19 08:00:37,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:37,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:37,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:37,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:37,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:37,833 INFO L87 Difference]: Start difference. First operand 8673 states and 12331 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, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 08:00:40,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:42,979 INFO L93 Difference]: Finished difference Result 18967 states and 27003 transitions. [2022-11-19 08:00:42,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:42,980 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, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 397 [2022-11-19 08:00:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:43,032 INFO L225 Difference]: With dead ends: 18967 [2022-11-19 08:00:43,032 INFO L226 Difference]: Without dead ends: 10321 [2022-11-19 08:00:43,067 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 08:00:43,067 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 1793 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 5784 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:43,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 5784 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1009 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-19 08:00:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2022-11-19 08:00:43,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 10317. [2022-11-19 08:00:43,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10317 states, 6205 states have (on average 1.3070104754230458) internal successors, (8110), 6397 states have internal predecessors, (8110), 3284 states have call successors, (3284), 827 states have call predecessors, (3284), 827 states have return successors, (3289), 3203 states have call predecessors, (3289), 3284 states have call successors, (3289) [2022-11-19 08:00:43,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10317 states to 10317 states and 14683 transitions. [2022-11-19 08:00:43,780 INFO L78 Accepts]: Start accepts. Automaton has 10317 states and 14683 transitions. Word has length 397 [2022-11-19 08:00:43,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:43,782 INFO L495 AbstractCegarLoop]: Abstraction has 10317 states and 14683 transitions. [2022-11-19 08:00:43,782 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, (56), 2 states have call predecessors, (56), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 08:00:43,782 INFO L276 IsEmpty]: Start isEmpty. Operand 10317 states and 14683 transitions. [2022-11-19 08:00:43,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-11-19 08:00:43,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:43,798 INFO L195 NwaCegarLoop]: trace histogram [23, 13, 13, 13, 13, 13, 13, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:43,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:00:43,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:43,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:43,799 INFO L85 PathProgramCache]: Analyzing trace with hash 343562985, now seen corresponding path program 1 times [2022-11-19 08:00:43,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:43,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702956646] [2022-11-19 08:00:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:43,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:45,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-11-19 08:00:45,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:45,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702956646] [2022-11-19 08:00:45,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702956646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:45,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:45,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:00:45,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650218223] [2022-11-19 08:00:45,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:45,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:00:45,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:45,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:00:45,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:00:45,509 INFO L87 Difference]: Start difference. First operand 10317 states and 14683 transitions. Second operand has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-19 08:00:48,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:51,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:51,694 INFO L93 Difference]: Finished difference Result 20625 states and 29430 transitions. [2022-11-19 08:00:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:00:51,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 433 [2022-11-19 08:00:51,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:51,749 INFO L225 Difference]: With dead ends: 20625 [2022-11-19 08:00:51,749 INFO L226 Difference]: Without dead ends: 10335 [2022-11-19 08:00:51,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:00:51,788 INFO L413 NwaCegarLoop]: 2400 mSDtfsCounter, 6 mSDsluCounter, 7194 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9594 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:51,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9594 Invalid, 1610 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1609 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-19 08:00:51,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10335 states. [2022-11-19 08:00:52,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10335 to 10335. [2022-11-19 08:00:52,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 6219 states have (on average 1.3059977488342178) internal successors, (8122), 6411 states have internal predecessors, (8122), 3283 states have call successors, (3283), 832 states have call predecessors, (3283), 832 states have return successors, (3288), 3202 states have call predecessors, (3288), 3283 states have call successors, (3288) [2022-11-19 08:00:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 14693 transitions. [2022-11-19 08:00:52,372 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 14693 transitions. Word has length 433 [2022-11-19 08:00:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:52,373 INFO L495 AbstractCegarLoop]: Abstraction has 10335 states and 14693 transitions. [2022-11-19 08:00:52,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-19 08:00:52,374 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 14693 transitions. [2022-11-19 08:00:52,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2022-11-19 08:00:52,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:52,389 INFO L195 NwaCegarLoop]: trace histogram [22, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:52,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:00:52,390 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:52,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:52,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2081377674, now seen corresponding path program 1 times [2022-11-19 08:00:52,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:52,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78741232] [2022-11-19 08:00:52,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:52,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2022-11-19 08:00:53,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:53,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78741232] [2022-11-19 08:00:53,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78741232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:53,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:53,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:53,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831184671] [2022-11-19 08:00:53,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:53,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:53,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:53,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:53,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:53,340 INFO L87 Difference]: Start difference. First operand 10335 states and 14693 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-19 08:00:56,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:58,352 INFO L93 Difference]: Finished difference Result 20663 states and 29383 transitions. [2022-11-19 08:00:58,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 450 [2022-11-19 08:00:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:58,417 INFO L225 Difference]: With dead ends: 20663 [2022-11-19 08:00:58,417 INFO L226 Difference]: Without dead ends: 10355 [2022-11-19 08:00:58,460 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 08:00:58,461 INFO L413 NwaCegarLoop]: 2402 mSDtfsCounter, 7 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:58,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4789 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 08:00:58,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2022-11-19 08:00:59,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10341. [2022-11-19 08:00:59,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10341 states, 6225 states have (on average 1.30570281124498) internal successors, (8128), 6417 states have internal predecessors, (8128), 3283 states have call successors, (3283), 832 states have call predecessors, (3283), 832 states have return successors, (3288), 3202 states have call predecessors, (3288), 3283 states have call successors, (3288) [2022-11-19 08:00:59,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10341 states to 10341 states and 14699 transitions. [2022-11-19 08:00:59,245 INFO L78 Accepts]: Start accepts. Automaton has 10341 states and 14699 transitions. Word has length 450 [2022-11-19 08:00:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:59,246 INFO L495 AbstractCegarLoop]: Abstraction has 10341 states and 14699 transitions. [2022-11-19 08:00:59,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-19 08:00:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 10341 states and 14699 transitions. [2022-11-19 08:00:59,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-11-19 08:00:59,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:59,263 INFO L195 NwaCegarLoop]: trace histogram [22, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:59,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:00:59,264 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:59,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:59,265 INFO L85 PathProgramCache]: Analyzing trace with hash -935699978, now seen corresponding path program 1 times [2022-11-19 08:00:59,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:59,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549071756] [2022-11-19 08:00:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:59,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2022-11-19 08:01:02,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:02,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549071756] [2022-11-19 08:01:02,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549071756] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:01:02,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961196748] [2022-11-19 08:01:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:02,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:01:02,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:01:02,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:01:02,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:01:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:04,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 5404 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:01:04,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2022-11-19 08:01:04,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2022-11-19 08:01:05,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961196748] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:05,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1147428867] [2022-11-19 08:01:05,269 INFO L159 IcfgInterpreter]: Started Sifa with 230 locations of interest [2022-11-19 08:01:05,269 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:01:05,274 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:01:05,279 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:01:05,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:05:32,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:05:32,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 08:05:32,548 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:05:32,551 INFO L158 Benchmark]: Toolchain (without parser) took 352454.50ms. Allocated memory was 127.9MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 75.4MB in the beginning and 872.5MB in the end (delta: -797.1MB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2022-11-19 08:05:32,552 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:05:32,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5251.38ms. Allocated memory was 127.9MB in the beginning and 245.4MB in the end (delta: 117.4MB). Free memory was 75.2MB in the beginning and 142.2MB in the end (delta: -67.1MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2022-11-19 08:05:32,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 385.86ms. Allocated memory is still 245.4MB. Free memory was 142.2MB in the beginning and 97.2MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-19 08:05:32,552 INFO L158 Benchmark]: Boogie Preprocessor took 345.42ms. Allocated memory is still 245.4MB. Free memory was 97.2MB in the beginning and 107.0MB in the end (delta: -9.9MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-11-19 08:05:32,552 INFO L158 Benchmark]: RCFGBuilder took 14361.36ms. Allocated memory was 245.4MB in the beginning and 612.4MB in the end (delta: 367.0MB). Free memory was 107.0MB in the beginning and 346.5MB in the end (delta: -239.5MB). Peak memory consumption was 361.8MB. Max. memory is 16.1GB. [2022-11-19 08:05:32,553 INFO L158 Benchmark]: TraceAbstraction took 332101.30ms. Allocated memory was 612.4MB in the beginning and 2.7GB in the end (delta: 2.1GB). Free memory was 346.5MB in the beginning and 872.5MB in the end (delta: -525.9MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2022-11-19 08:05:32,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5251.38ms. Allocated memory was 127.9MB in the beginning and 245.4MB in the end (delta: 117.4MB). Free memory was 75.2MB in the beginning and 142.2MB in the end (delta: -67.1MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 385.86ms. Allocated memory is still 245.4MB. Free memory was 142.2MB in the beginning and 97.2MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 345.42ms. Allocated memory is still 245.4MB. Free memory was 97.2MB in the beginning and 107.0MB in the end (delta: -9.9MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * RCFGBuilder took 14361.36ms. Allocated memory was 245.4MB in the beginning and 612.4MB in the end (delta: 367.0MB). Free memory was 107.0MB in the beginning and 346.5MB in the end (delta: -239.5MB). Peak memory consumption was 361.8MB. Max. memory is 16.1GB. * TraceAbstraction took 332101.30ms. Allocated memory was 612.4MB in the beginning and 2.7GB in the end (delta: 2.1GB). Free memory was 346.5MB in the beginning and 872.5MB in the end (delta: -525.9MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 08:05:32,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/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 abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 --- 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 08:05:35,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:05:35,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:05:35,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:05:35,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:05:35,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:05:35,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:05:35,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:05:35,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:05:35,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:05:35,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:05:35,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:05:35,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:05:35,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:05:35,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:05:35,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:05:35,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:05:35,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:05:35,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:05:35,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:05:35,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:05:35,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:05:35,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:05:35,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:05:35,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:05:35,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:05:35,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:05:35,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:05:35,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:05:35,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:05:35,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:05:35,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:05:35,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:05:35,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:05:35,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:05:35,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:05:35,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:05:35,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:05:35,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:05:35,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:05:35,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:05:35,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:05:35,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:05:35,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:05:35,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:05:35,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:05:35,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:05:35,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:05:35,306 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:05:35,306 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:05:35,306 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:05:35,307 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:05:35,308 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:05:35,308 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:05:35,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:05:35,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:05:35,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:05:35,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:05:35,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:05:35,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:05:35,311 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:05:35,311 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:05:35,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:05:35,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:05:35,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:05:35,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:05:35,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:05:35,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:05:35,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:35,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:05:35,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:05:35,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:05:35,314 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:05:35,314 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:05:35,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:05:35,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:05:35,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:05:35,316 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 [2022-11-19 08:05:35,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:05:35,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:05:35,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:05:35,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:05:35,750 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:05:35,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-19 08:05:35,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data/33b1a9f06/b71f20a09b734ba4be0e22b31a3a9fb0/FLAGdf126d1b4 [2022-11-19 08:05:36,934 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:05:36,934 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-19 08:05:37,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data/33b1a9f06/b71f20a09b734ba4be0e22b31a3a9fb0/FLAGdf126d1b4 [2022-11-19 08:05:37,225 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/data/33b1a9f06/b71f20a09b734ba4be0e22b31a3a9fb0 [2022-11-19 08:05:37,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:05:37,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:05:37,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:37,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:05:37,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:05:37,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:37" (1/1) ... [2022-11-19 08:05:37,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67100e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:37, skipping insertion in model container [2022-11-19 08:05:37,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:37" (1/1) ... [2022-11-19 08:05:37,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:05:37,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:05:41,537 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2022-11-19 08:05:41,548 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2022-11-19 08:05:41,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:41,650 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 08:05:41,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:05:42,172 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2022-11-19 08:05:42,172 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2022-11-19 08:05:42,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:42,252 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:05:42,758 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2022-11-19 08:05:42,759 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_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2022-11-19 08:05:42,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:43,179 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:05:43,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43 WrapperNode [2022-11-19 08:05:43,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:43,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:05:43,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:05:43,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:05:43,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,581 INFO L138 Inliner]: procedures = 570, calls = 2976, calls flagged for inlining = 291, calls inlined = 260, statements flattened = 7216 [2022-11-19 08:05:43,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:05:43,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:05:43,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:05:43,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:05:43,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:05:43,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:05:43,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:05:43,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:05:43,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (1/1) ... [2022-11-19 08:05:43,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:43,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:44,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:05:44,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:05:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-19 08:05:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-19 08:05:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:05:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:05:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-19 08:05:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-19 08:05:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 08:05:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 08:05:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2022-11-19 08:05:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2022-11-19 08:05:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:05:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:05:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:05:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:05:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:05:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:05:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:05:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:05:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2022-11-19 08:05:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2022-11-19 08:05:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 08:05:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 08:05:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:05:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:05:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:05:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:05:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:05:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:05:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:05:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:05:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:05:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:05:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 08:05:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 08:05:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:05:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:05:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 08:05:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2022-11-19 08:05:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2022-11-19 08:05:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-19 08:05:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:05:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:05:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:05:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:05:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~X~C_INT~TO~~u16~0 [2022-11-19 08:05:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~X~C_INT~TO~~u16~0 [2022-11-19 08:05:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-11-19 08:05:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2022-11-19 08:05:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:05:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:05:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 08:05:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 08:05:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:05:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:05:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2022-11-19 08:05:44,149 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2022-11-19 08:05:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:05:44,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:05:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 08:05:44,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 08:05:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:05:44,150 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:05:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2022-11-19 08:05:44,150 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2022-11-19 08:05:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 08:05:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 08:05:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:05:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:05:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:05:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:05:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 08:05:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 08:05:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 08:05:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 08:05:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:05:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:05:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2022-11-19 08:05:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2022-11-19 08:05:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-19 08:05:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-19 08:05:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:05:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:05:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:05:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:05:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:05:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-19 08:05:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-19 08:05:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-19 08:05:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-19 08:05:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 08:05:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 08:05:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 08:05:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 08:05:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2022-11-19 08:05:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2022-11-19 08:05:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:05:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 08:05:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 08:05:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:05:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:05:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:05:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:05:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:05:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:05:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-19 08:05:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-19 08:05:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:05:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:05:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2022-11-19 08:05:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2022-11-19 08:05:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-19 08:05:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 08:05:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 08:05:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 08:05:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 08:05:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-11-19 08:05:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-11-19 08:05:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 08:05:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 08:05:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2022-11-19 08:05:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2022-11-19 08:05:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 08:05:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 08:05:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-19 08:05:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-19 08:05:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:05:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:05:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 08:05:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 08:05:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:05:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:05:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2022-11-19 08:05:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2022-11-19 08:05:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:05:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:05:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-19 08:05:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2022-11-19 08:05:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2022-11-19 08:05:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-19 08:05:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-19 08:05:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:05:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:05:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-19 08:05:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 08:05:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 08:05:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-19 08:05:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 08:05:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:05:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-19 08:05:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:05:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:05:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:05:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2022-11-19 08:05:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2022-11-19 08:05:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2022-11-19 08:05:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2022-11-19 08:05:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2022-11-19 08:05:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2022-11-19 08:05:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 08:05:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 08:05:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 08:05:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2022-11-19 08:05:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2022-11-19 08:05:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2022-11-19 08:05:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2022-11-19 08:05:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 08:05:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 08:05:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:05:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:05:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-19 08:05:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-19 08:05:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:05:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:05:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 08:05:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 08:05:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-11-19 08:05:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-11-19 08:05:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2022-11-19 08:05:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2022-11-19 08:05:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2022-11-19 08:05:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2022-11-19 08:05:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2022-11-19 08:05:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2022-11-19 08:05:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:05:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:05:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:05:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2022-11-19 08:05:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2022-11-19 08:05:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 08:05:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 08:05:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:05:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-11-19 08:05:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-11-19 08:05:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-19 08:05:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-19 08:05:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-19 08:05:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 08:05:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:05:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2022-11-19 08:05:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2022-11-19 08:05:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2022-11-19 08:05:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2022-11-19 08:05:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 08:05:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 08:05:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:05:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:05:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-11-19 08:05:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-11-19 08:05:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:05:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:05:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2022-11-19 08:05:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2022-11-19 08:05:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 08:05:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 08:05:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 08:05:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 08:05:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2022-11-19 08:05:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2022-11-19 08:05:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-11-19 08:05:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-11-19 08:05:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2022-11-19 08:05:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2022-11-19 08:05:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 08:05:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 08:05:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 08:05:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 08:05:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:05:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:05:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2022-11-19 08:05:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2022-11-19 08:05:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:05:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:05:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2022-11-19 08:05:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2022-11-19 08:05:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2022-11-19 08:05:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2022-11-19 08:05:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 08:05:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 08:05:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:05:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:05:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2022-11-19 08:05:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2022-11-19 08:05:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-19 08:05:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-19 08:05:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-19 08:05:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-19 08:05:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:05:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:05:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:05:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 08:05:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 08:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2022-11-19 08:05:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2022-11-19 08:05:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2022-11-19 08:05:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2022-11-19 08:05:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 08:05:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 08:05:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2022-11-19 08:05:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2022-11-19 08:05:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~X~C_INT~X~~u16~0~TO~VOID [2022-11-19 08:05:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~X~C_INT~X~~u16~0~TO~VOID [2022-11-19 08:05:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:05:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:05:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 08:05:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 08:05:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:05:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:05:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 08:05:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 08:05:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-11-19 08:05:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-11-19 08:05:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 08:05:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 08:05:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-19 08:05:44,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-19 08:05:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-19 08:05:44,184 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-19 08:05:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:05:44,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:05:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 08:05:44,184 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 08:05:45,400 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:05:45,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:05:46,647 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:06:52,846 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:06:53,261 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:06:53,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:06:53,301 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-19 08:06:53,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:53 BoogieIcfgContainer [2022-11-19 08:06:53,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:06:53,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:06:53,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:06:53,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:06:53,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:37" (1/3) ... [2022-11-19 08:06:53,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54295e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:53, skipping insertion in model container [2022-11-19 08:06:53,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:43" (2/3) ... [2022-11-19 08:06:53,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54295e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:53, skipping insertion in model container [2022-11-19 08:06:53,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:53" (3/3) ... [2022-11-19 08:06:53,320 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-19 08:06:53,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:06:53,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:06:53,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:06:53,490 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;@507ead5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:06:53,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:06:53,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 2659 states, 1836 states have (on average 1.298474945533769) internal successors, (2384), 1876 states have internal predecessors, (2384), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) [2022-11-19 08:06:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-19 08:06:53,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:53,577 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:06:53,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:06:53,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2047214684, now seen corresponding path program 1 times [2022-11-19 08:06:53,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:06:53,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573812213] [2022-11-19 08:06:53,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:53,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:06:53,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:06:53,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:06:53,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:06:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:56,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 2142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:06:56,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:06:56,761 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2022-11-19 08:06:56,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:06:56,764 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:06:56,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573812213] [2022-11-19 08:06:56,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573812213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:06:56,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:06:56,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:06:56,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371211164] [2022-11-19 08:06:56,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:56,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:06:56,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:06:56,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:06:56,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:06:56,829 INFO L87 Difference]: Start difference. First operand has 2659 states, 1836 states have (on average 1.298474945533769) internal successors, (2384), 1876 states have internal predecessors, (2384), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:06:58,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:06:58,166 INFO L93 Difference]: Finished difference Result 7619 states and 10959 transitions. [2022-11-19 08:06:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:06:58,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 258 [2022-11-19 08:06:58,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:06:58,224 INFO L225 Difference]: With dead ends: 7619 [2022-11-19 08:06:58,224 INFO L226 Difference]: Without dead ends: 4828 [2022-11-19 08:06:58,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:06:58,252 INFO L413 NwaCegarLoop]: 4791 mSDtfsCounter, 3335 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 8442 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:06:58,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 8442 Invalid, 86 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:06:58,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2022-11-19 08:06:58,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4825. [2022-11-19 08:06:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 3368 states have (on average 1.2883016627078385) internal successors, (4339), 3437 states have internal predecessors, (4339), 1223 states have call successors, (1223), 233 states have call predecessors, (1223), 233 states have return successors, (1223), 1199 states have call predecessors, (1223), 1223 states have call successors, (1223) [2022-11-19 08:06:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 6785 transitions. [2022-11-19 08:06:58,780 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 6785 transitions. Word has length 258 [2022-11-19 08:06:58,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:06:58,781 INFO L495 AbstractCegarLoop]: Abstraction has 4825 states and 6785 transitions. [2022-11-19 08:06:58,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:06:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 6785 transitions. [2022-11-19 08:06:58,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-19 08:06:58,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:58,800 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:06:58,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:06:59,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:06:59,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:06:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:59,016 INFO L85 PathProgramCache]: Analyzing trace with hash -885997932, now seen corresponding path program 1 times [2022-11-19 08:06:59,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:06:59,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406913988] [2022-11-19 08:06:59,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:59,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:06:59,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:06:59,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:06:59,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:07:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:01,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 2115 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:07:01,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2022-11-19 08:07:01,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:07:01,881 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:07:01,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406913988] [2022-11-19 08:07:01,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406913988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:01,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:01,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361403703] [2022-11-19 08:07:01,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:01,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:07:01,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:01,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:01,893 INFO L87 Difference]: Start difference. First operand 4825 states and 6785 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:07:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:03,394 INFO L93 Difference]: Finished difference Result 12949 states and 18148 transitions. [2022-11-19 08:07:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:03,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 268 [2022-11-19 08:07:03,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:03,468 INFO L225 Difference]: With dead ends: 12949 [2022-11-19 08:07:03,468 INFO L226 Difference]: Without dead ends: 8155 [2022-11-19 08:07:03,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 266 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 08:07:03,492 INFO L413 NwaCegarLoop]: 4095 mSDtfsCounter, 2636 mSDsluCounter, 3506 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2636 SdHoareTripleChecker+Valid, 7601 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:03,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2636 Valid, 7601 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:07:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8155 states. [2022-11-19 08:07:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8155 to 8150. [2022-11-19 08:07:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8150 states, 5692 states have (on average 1.2907589599437808) internal successors, (7347), 5798 states have internal predecessors, (7347), 2020 states have call successors, (2020), 438 states have call predecessors, (2020), 437 states have return successors, (2026), 1972 states have call predecessors, (2026), 2020 states have call successors, (2026) [2022-11-19 08:07:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8150 states to 8150 states and 11393 transitions. [2022-11-19 08:07:04,030 INFO L78 Accepts]: Start accepts. Automaton has 8150 states and 11393 transitions. Word has length 268 [2022-11-19 08:07:04,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:04,031 INFO L495 AbstractCegarLoop]: Abstraction has 8150 states and 11393 transitions. [2022-11-19 08:07:04,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:07:04,032 INFO L276 IsEmpty]: Start isEmpty. Operand 8150 states and 11393 transitions. [2022-11-19 08:07:04,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-19 08:07:04,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:04,052 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:07:04,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:07:04,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:04,267 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:04,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash -802910020, now seen corresponding path program 1 times [2022-11-19 08:07:04,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:07:04,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418229230] [2022-11-19 08:07:04,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:04,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:04,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:07:04,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:07:04,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 08:07:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:06,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:07:06,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2022-11-19 08:07:08,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:07:08,761 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:07:08,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418229230] [2022-11-19 08:07:08,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418229230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:08,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:08,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:07:08,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819487630] [2022-11-19 08:07:08,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:08,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:08,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:07:08,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:08,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:08,765 INFO L87 Difference]: Start difference. First operand 8150 states and 11393 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 08:07:09,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:09,655 INFO L93 Difference]: Finished difference Result 16269 states and 22742 transitions. [2022-11-19 08:07:09,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:09,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 330 [2022-11-19 08:07:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:09,718 INFO L225 Difference]: With dead ends: 16269 [2022-11-19 08:07:09,719 INFO L226 Difference]: Without dead ends: 8150 [2022-11-19 08:07:09,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 328 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 08:07:09,758 INFO L413 NwaCegarLoop]: 3609 mSDtfsCounter, 3538 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 3609 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:09,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 3609 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:07:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8150 states. [2022-11-19 08:07:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8150 to 8150. [2022-11-19 08:07:10,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8150 states, 5692 states have (on average 1.2900562192550948) internal successors, (7343), 5798 states have internal predecessors, (7343), 2020 states have call successors, (2020), 438 states have call predecessors, (2020), 437 states have return successors, (2026), 1972 states have call predecessors, (2026), 2020 states have call successors, (2026) [2022-11-19 08:07:10,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8150 states to 8150 states and 11389 transitions. [2022-11-19 08:07:10,629 INFO L78 Accepts]: Start accepts. Automaton has 8150 states and 11389 transitions. Word has length 330 [2022-11-19 08:07:10,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:10,631 INFO L495 AbstractCegarLoop]: Abstraction has 8150 states and 11389 transitions. [2022-11-19 08:07:10,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 08:07:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8150 states and 11389 transitions. [2022-11-19 08:07:10,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-19 08:07:10,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:10,663 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:07:10,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:07:10,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:10,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:10,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:10,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1588907910, now seen corresponding path program 1 times [2022-11-19 08:07:10,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:07:10,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290484136] [2022-11-19 08:07:10,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:10,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:10,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:07:10,893 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:07:10,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 08:07:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:13,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 2298 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:07:13,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-11-19 08:07:16,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:07:16,115 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:07:16,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290484136] [2022-11-19 08:07:16,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290484136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:16,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:16,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:07:16,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460696278] [2022-11-19 08:07:16,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:16,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:16,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:07:16,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:16,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:16,120 INFO L87 Difference]: Start difference. First operand 8150 states and 11389 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 08:07:18,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:19,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:19,455 INFO L93 Difference]: Finished difference Result 18802 states and 26229 transitions. [2022-11-19 08:07:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:19,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 330 [2022-11-19 08:07:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:19,536 INFO L225 Difference]: With dead ends: 18802 [2022-11-19 08:07:19,536 INFO L226 Difference]: Without dead ends: 10683 [2022-11-19 08:07:19,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 328 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 08:07:19,571 INFO L413 NwaCegarLoop]: 4081 mSDtfsCounter, 2357 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 7638 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:19,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2357 Valid, 7638 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:07:19,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-11-19 08:07:20,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 10677. [2022-11-19 08:07:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10677 states, 7456 states have (on average 1.290906652360515) internal successors, (9625), 7592 states have internal predecessors, (9625), 2620 states have call successors, (2620), 601 states have call predecessors, (2620), 600 states have return successors, (2632), 2555 states have call predecessors, (2632), 2620 states have call successors, (2632) [2022-11-19 08:07:20,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10677 states to 10677 states and 14877 transitions. [2022-11-19 08:07:20,699 INFO L78 Accepts]: Start accepts. Automaton has 10677 states and 14877 transitions. Word has length 330 [2022-11-19 08:07:20,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:20,701 INFO L495 AbstractCegarLoop]: Abstraction has 10677 states and 14877 transitions. [2022-11-19 08:07:20,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-19 08:07:20,701 INFO L276 IsEmpty]: Start isEmpty. Operand 10677 states and 14877 transitions. [2022-11-19 08:07:20,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-19 08:07:20,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:20,723 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:07:20,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:07:20,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:20,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:20,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:20,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1225441412, now seen corresponding path program 1 times [2022-11-19 08:07:20,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:07:20,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823387539] [2022-11-19 08:07:20,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:20,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:20,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:07:20,946 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:07:20,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 08:07:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:23,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 2297 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:07:23,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-19 08:07:24,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:07:24,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:07:24,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823387539] [2022-11-19 08:07:24,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823387539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:24,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:24,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:24,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020241826] [2022-11-19 08:07:24,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:24,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:24,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:07:24,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:24,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:24,153 INFO L87 Difference]: Start difference. First operand 10677 states and 14877 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, (43), 3 states have call predecessors, (43), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:07:26,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:26,177 INFO L93 Difference]: Finished difference Result 25761 states and 35942 transitions. [2022-11-19 08:07:26,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:26,178 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, (43), 3 states have call predecessors, (43), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 330 [2022-11-19 08:07:26,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:26,273 INFO L225 Difference]: With dead ends: 25761 [2022-11-19 08:07:26,273 INFO L226 Difference]: Without dead ends: 15136 [2022-11-19 08:07:26,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 328 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 08:07:26,317 INFO L413 NwaCegarLoop]: 5504 mSDtfsCounter, 3144 mSDsluCounter, 3545 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3144 SdHoareTripleChecker+Valid, 9049 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:26,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3144 Valid, 9049 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:07:26,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15136 states. [2022-11-19 08:07:27,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15136 to 15131. [2022-11-19 08:07:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15131 states, 10604 states have (on average 1.2931912485854395) internal successors, (13713), 10791 states have internal predecessors, (13713), 3677 states have call successors, (3677), 850 states have call predecessors, (3677), 849 states have return successors, (3692), 3586 states have call predecessors, (3692), 3677 states have call successors, (3692) [2022-11-19 08:07:27,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15131 states to 15131 states and 21082 transitions. [2022-11-19 08:07:27,997 INFO L78 Accepts]: Start accepts. Automaton has 15131 states and 21082 transitions. Word has length 330 [2022-11-19 08:07:27,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:27,998 INFO L495 AbstractCegarLoop]: Abstraction has 15131 states and 21082 transitions. [2022-11-19 08:07:27,998 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, (43), 3 states have call predecessors, (43), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:07:27,998 INFO L276 IsEmpty]: Start isEmpty. Operand 15131 states and 21082 transitions. [2022-11-19 08:07:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-19 08:07:28,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:28,024 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:28,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:07:28,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:28,248 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:28,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:28,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1649201494, now seen corresponding path program 1 times [2022-11-19 08:07:28,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:07:28,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176437851] [2022-11-19 08:07:28,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:28,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:28,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:07:28,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:07:28,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 08:07:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:30,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:07:30,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:31,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1074 trivial. 0 not checked. [2022-11-19 08:07:31,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:07:31,177 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:07:31,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176437851] [2022-11-19 08:07:31,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176437851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:31,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:31,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:31,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52389574] [2022-11-19 08:07:31,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:31,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:31,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:07:31,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:31,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:31,181 INFO L87 Difference]: Start difference. First operand 15131 states and 21082 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 08:07:33,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:33,210 INFO L93 Difference]: Finished difference Result 34660 states and 48331 transitions. [2022-11-19 08:07:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:33,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 404 [2022-11-19 08:07:33,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:33,324 INFO L225 Difference]: With dead ends: 34660 [2022-11-19 08:07:33,325 INFO L226 Difference]: Without dead ends: 19581 [2022-11-19 08:07:33,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 402 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 08:07:33,384 INFO L413 NwaCegarLoop]: 6766 mSDtfsCounter, 3160 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3160 SdHoareTripleChecker+Valid, 10318 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:33,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3160 Valid, 10318 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:07:33,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19581 states. [2022-11-19 08:07:35,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19581 to 19576. [2022-11-19 08:07:35,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19576 states, 13743 states have (on average 1.2946227170195737) internal successors, (17792), 13981 states have internal predecessors, (17792), 4734 states have call successors, (4734), 1099 states have call predecessors, (4734), 1098 states have return successors, (4752), 4617 states have call predecessors, (4752), 4734 states have call successors, (4752) [2022-11-19 08:07:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19576 states to 19576 states and 27278 transitions. [2022-11-19 08:07:35,753 INFO L78 Accepts]: Start accepts. Automaton has 19576 states and 27278 transitions. Word has length 404 [2022-11-19 08:07:35,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:35,754 INFO L495 AbstractCegarLoop]: Abstraction has 19576 states and 27278 transitions. [2022-11-19 08:07:35,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 08:07:35,755 INFO L276 IsEmpty]: Start isEmpty. Operand 19576 states and 27278 transitions. [2022-11-19 08:07:35,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-19 08:07:35,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:35,784 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 13, 13, 13, 13, 13, 13, 9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:35,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:07:35,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:36,000 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:36,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:36,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1177845144, now seen corresponding path program 1 times [2022-11-19 08:07:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:07:36,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862930965] [2022-11-19 08:07:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:36,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:36,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:07:36,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:07:36,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-19 08:07:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:38,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:07:38,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1074 trivial. 0 not checked. [2022-11-19 08:07:38,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:07:38,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:07:38,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862930965] [2022-11-19 08:07:38,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862930965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:38,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:38,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:38,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439238057] [2022-11-19 08:07:38,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:38,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:38,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:07:38,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:38,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:38,816 INFO L87 Difference]: Start difference. First operand 19576 states and 27278 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 08:07:41,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:41,269 INFO L93 Difference]: Finished difference Result 43565 states and 60745 transitions. [2022-11-19 08:07:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:41,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 404 [2022-11-19 08:07:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:41,414 INFO L225 Difference]: With dead ends: 43565 [2022-11-19 08:07:41,414 INFO L226 Difference]: Without dead ends: 24041 [2022-11-19 08:07:41,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 402 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 08:07:41,497 INFO L413 NwaCegarLoop]: 6768 mSDtfsCounter, 3209 mSDsluCounter, 3508 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3209 SdHoareTripleChecker+Valid, 10276 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:41,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3209 Valid, 10276 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:07:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24041 states. [2022-11-19 08:07:44,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24041 to 24036. [2022-11-19 08:07:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24036 states, 16895 states have (on average 1.2952944658182894) internal successors, (21884), 17184 states have internal predecessors, (21884), 5791 states have call successors, (5791), 1350 states have call predecessors, (5791), 1349 states have return successors, (5812), 5648 states have call predecessors, (5812), 5791 states have call successors, (5812) [2022-11-19 08:07:44,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24036 states to 24036 states and 33487 transitions. [2022-11-19 08:07:44,400 INFO L78 Accepts]: Start accepts. Automaton has 24036 states and 33487 transitions. Word has length 404 [2022-11-19 08:07:44,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:44,401 INFO L495 AbstractCegarLoop]: Abstraction has 24036 states and 33487 transitions. [2022-11-19 08:07:44,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 08:07:44,402 INFO L276 IsEmpty]: Start isEmpty. Operand 24036 states and 33487 transitions. [2022-11-19 08:07:44,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-11-19 08:07:44,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:44,436 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:44,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:07:44,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:44,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:07:44,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:44,660 INFO L85 PathProgramCache]: Analyzing trace with hash -150693570, now seen corresponding path program 1 times [2022-11-19 08:07:44,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:07:44,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331787933] [2022-11-19 08:07:44,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:44,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:07:44,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:07:44,666 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:07:44,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 08:07:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:47,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:07:47,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-11-19 08:07:48,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:07:48,192 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:07:48,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331787933] [2022-11-19 08:07:48,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331787933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:48,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:48,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:07:48,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494655752] [2022-11-19 08:07:48,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:48,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:07:48,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:07:48,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:07:48,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:07:48,196 INFO L87 Difference]: Start difference. First operand 24036 states and 33487 transitions. Second operand has 8 states, 8 states have (on average 23.625) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-19 08:07:58,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:58,493 INFO L93 Difference]: Finished difference Result 61639 states and 87598 transitions. [2022-11-19 08:07:58,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:07:58,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.625) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 474 [2022-11-19 08:07:58,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:58,679 INFO L225 Difference]: With dead ends: 61639 [2022-11-19 08:07:58,680 INFO L226 Difference]: Without dead ends: 37655 [2022-11-19 08:07:58,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:07:58,773 INFO L413 NwaCegarLoop]: 5501 mSDtfsCounter, 3800 mSDsluCounter, 28791 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 1033 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 34292 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1033 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:58,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 34292 Invalid, 1768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1033 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 08:07:58,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37655 states. [2022-11-19 08:08:01,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37655 to 24045. [2022-11-19 08:08:01,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24045 states, 16904 states have (on average 1.2944273544723142) internal successors, (21881), 17193 states have internal predecessors, (21881), 5791 states have call successors, (5791), 1350 states have call predecessors, (5791), 1349 states have return successors, (5812), 5648 states have call predecessors, (5812), 5791 states have call successors, (5812) [2022-11-19 08:08:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24045 states to 24045 states and 33484 transitions. [2022-11-19 08:08:02,110 INFO L78 Accepts]: Start accepts. Automaton has 24045 states and 33484 transitions. Word has length 474 [2022-11-19 08:08:02,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:02,111 INFO L495 AbstractCegarLoop]: Abstraction has 24045 states and 33484 transitions. [2022-11-19 08:08:02,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.625) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-19 08:08:02,112 INFO L276 IsEmpty]: Start isEmpty. Operand 24045 states and 33484 transitions. [2022-11-19 08:08:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-11-19 08:08:02,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:02,144 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:08:02,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:02,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:02,358 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:02,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:02,358 INFO L85 PathProgramCache]: Analyzing trace with hash -557717056, now seen corresponding path program 1 times [2022-11-19 08:08:02,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:08:02,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484818341] [2022-11-19 08:08:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:02,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:02,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:08:02,364 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:08:02,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-19 08:08:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:05,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 3026 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:08:05,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2022-11-19 08:08:07,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:08:07,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:08:07,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484818341] [2022-11-19 08:08:07,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484818341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:07,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:07,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:08:07,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779925967] [2022-11-19 08:08:07,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:07,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:08:07,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:08:07,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:08:07,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:07,662 INFO L87 Difference]: Start difference. First operand 24045 states and 33484 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-19 08:08:09,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:09,643 INFO L93 Difference]: Finished difference Result 41620 states and 57691 transitions. [2022-11-19 08:08:09,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:09,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 474 [2022-11-19 08:08:09,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:09,727 INFO L225 Difference]: With dead ends: 41620 [2022-11-19 08:08:09,727 INFO L226 Difference]: Without dead ends: 17627 [2022-11-19 08:08:09,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 472 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 08:08:09,885 INFO L413 NwaCegarLoop]: 3581 mSDtfsCounter, 3497 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3497 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:09,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3497 Valid, 3581 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:08:09,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17627 states. [2022-11-19 08:08:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17627 to 17627. [2022-11-19 08:08:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17627 states, 12318 states have (on average 1.2791037506088652) internal successors, (15756), 12549 states have internal predecessors, (15756), 4248 states have call successors, (4248), 1061 states have call predecessors, (4248), 1060 states have return successors, (4254), 4138 states have call predecessors, (4254), 4248 states have call successors, (4254) [2022-11-19 08:08:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17627 states to 17627 states and 24258 transitions. [2022-11-19 08:08:12,208 INFO L78 Accepts]: Start accepts. Automaton has 17627 states and 24258 transitions. Word has length 474 [2022-11-19 08:08:12,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:12,209 INFO L495 AbstractCegarLoop]: Abstraction has 17627 states and 24258 transitions. [2022-11-19 08:08:12,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-19 08:08:12,209 INFO L276 IsEmpty]: Start isEmpty. Operand 17627 states and 24258 transitions. [2022-11-19 08:08:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-11-19 08:08:12,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:12,227 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 13, 13, 13, 13, 13, 13, 11, 11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:08:12,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:12,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:12,444 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:12,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2042950508, now seen corresponding path program 1 times [2022-11-19 08:08:12,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:08:12,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615483223] [2022-11-19 08:08:12,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:12,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:12,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:08:12,449 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:08:12,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-19 08:08:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:15,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 2538 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:08:15,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2022-11-19 08:08:15,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:08:15,264 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:08:15,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615483223] [2022-11-19 08:08:15,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615483223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:15,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:15,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:08:15,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069633951] [2022-11-19 08:08:15,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:15,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:08:15,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:08:15,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:08:15,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:15,267 INFO L87 Difference]: Start difference. First operand 17627 states and 24258 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-19 08:08:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:17,565 INFO L93 Difference]: Finished difference Result 37871 states and 52140 transitions. [2022-11-19 08:08:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:17,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 460 [2022-11-19 08:08:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:17,633 INFO L225 Difference]: With dead ends: 37871 [2022-11-19 08:08:17,633 INFO L226 Difference]: Without dead ends: 20296 [2022-11-19 08:08:17,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 458 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 08:08:17,677 INFO L413 NwaCegarLoop]: 5201 mSDtfsCounter, 2244 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 8725 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:17,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2244 Valid, 8725 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:08:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20296 states. [2022-11-19 08:08:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20296 to 20291. [2022-11-19 08:08:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20291 states, 14195 states have (on average 1.2789714688270517) internal successors, (18155), 14463 states have internal predecessors, (18155), 4872 states have call successors, (4872), 1224 states have call predecessors, (4872), 1223 states have return successors, (4878), 4744 states have call predecessors, (4878), 4872 states have call successors, (4878) [2022-11-19 08:08:19,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20291 states to 20291 states and 27905 transitions. [2022-11-19 08:08:19,965 INFO L78 Accepts]: Start accepts. Automaton has 20291 states and 27905 transitions. Word has length 460 [2022-11-19 08:08:19,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:19,966 INFO L495 AbstractCegarLoop]: Abstraction has 20291 states and 27905 transitions. [2022-11-19 08:08:19,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-19 08:08:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 20291 states and 27905 transitions. [2022-11-19 08:08:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-11-19 08:08:19,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:19,977 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 13, 13, 13, 13, 13, 13, 11, 11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:08:20,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:20,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:20,178 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:20,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:20,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1780660438, now seen corresponding path program 1 times [2022-11-19 08:08:20,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:08:20,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017770341] [2022-11-19 08:08:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:20,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:20,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:08:20,182 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:08:20,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-19 08:08:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:22,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 2538 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:08:22,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2022-11-19 08:08:22,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:08:22,940 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:08:22,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017770341] [2022-11-19 08:08:22,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017770341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:22,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:22,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:08:22,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780555351] [2022-11-19 08:08:22,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:22,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:08:22,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:08:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:08:22,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:22,944 INFO L87 Difference]: Start difference. First operand 20291 states and 27905 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-19 08:08:26,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:26,363 INFO L93 Difference]: Finished difference Result 43163 states and 59389 transitions. [2022-11-19 08:08:26,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:26,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 460 [2022-11-19 08:08:26,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:26,451 INFO L225 Difference]: With dead ends: 43163 [2022-11-19 08:08:26,452 INFO L226 Difference]: Without dead ends: 22924 [2022-11-19 08:08:26,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 458 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 08:08:26,711 INFO L413 NwaCegarLoop]: 5809 mSDtfsCounter, 2231 mSDsluCounter, 3523 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 9332 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:26,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2231 Valid, 9332 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:08:26,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22924 states. [2022-11-19 08:08:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22924 to 22919. [2022-11-19 08:08:28,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22919 states, 16042 states have (on average 1.2790175788555043) internal successors, (20518), 16347 states have internal predecessors, (20518), 5493 states have call successors, (5493), 1384 states have call predecessors, (5493), 1383 states have return successors, (5499), 5347 states have call predecessors, (5499), 5493 states have call successors, (5499) [2022-11-19 08:08:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22919 states to 22919 states and 31510 transitions. [2022-11-19 08:08:28,863 INFO L78 Accepts]: Start accepts. Automaton has 22919 states and 31510 transitions. Word has length 460 [2022-11-19 08:08:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:28,864 INFO L495 AbstractCegarLoop]: Abstraction has 22919 states and 31510 transitions. [2022-11-19 08:08:28,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 3 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-19 08:08:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 22919 states and 31510 transitions. [2022-11-19 08:08:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-11-19 08:08:28,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:28,879 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 13, 13, 13, 13, 13, 13, 12, 12, 12, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:28,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-19 08:08:29,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:29,080 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:08:29,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:29,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2110296498, now seen corresponding path program 1 times [2022-11-19 08:08:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:08:29,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272280888] [2022-11-19 08:08:29,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:29,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:08:29,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:08:29,083 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:08:29,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf34b53-74ae-4f0c-989f-358c1d5fbaf9/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 08:08:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:31,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:08:31,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:08:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1634 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2022-11-19 08:08:33,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:08:33,211 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:08:33,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272280888] [2022-11-19 08:08:33,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272280888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:33,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:33,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-19 08:08:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361959287] [2022-11-19 08:08:33,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:33,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:08:33,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:08:33,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:08:33,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:08:33,215 INFO L87 Difference]: Start difference. First operand 22919 states and 31510 transitions. Second operand has 13 states, 12 states have (on average 17.5) internal successors, (210), 12 states have internal predecessors, (210), 5 states have call successors, (57), 3 states have call predecessors, (57), 5 states have return successors, (51), 5 states have call predecessors, (51), 5 states have call successors, (51)