./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-ti-tlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF --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 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:23:37,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:23:37,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:23:37,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:23:37,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:23:37,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:23:37,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:23:37,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:23:37,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:23:37,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:23:37,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:23:37,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:23:37,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:23:37,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:23:37,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:23:37,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:23:37,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:23:37,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:23:37,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:23:37,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:23:37,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:23:37,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:23:37,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:23:37,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:23:37,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:23:37,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:23:37,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:23:37,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:23:37,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:23:37,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:23:37,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:23:37,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:23:37,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:23:37,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:23:37,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:23:37,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:23:37,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:23:37,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:23:37,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:23:37,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:23:37,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:23:37,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:23:37,159 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:23:37,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:23:37,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:23:37,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:23:37,161 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:23:37,161 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:23:37,162 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:23:37,162 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:23:37,162 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:23:37,162 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:23:37,163 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:23:37,163 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:23:37,163 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:23:37,163 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:23:37,164 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:23:37,164 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:23:37,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:23:37,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:23:37,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:23:37,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:23:37,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:23:37,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:23:37,166 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:23:37,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:23:37,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:23:37,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:23:37,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:23:37,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:23:37,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:23:37,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:23:37,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:23:37,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:23:37,169 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:23:37,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:23:37,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:23:37,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:23:37,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:23:37,170 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf [2021-11-12 23:23:37,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:23:37,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:23:37,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:23:37,474 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:23:37,477 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:23:37,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-12 23:23:37,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data/ebfa65897/3f4312ae582e47809dff9262e9edc2cd/FLAG494563e58 [2021-11-12 23:23:38,460 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:23:38,461 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-12 23:23:38,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data/ebfa65897/3f4312ae582e47809dff9262e9edc2cd/FLAG494563e58 [2021-11-12 23:23:38,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data/ebfa65897/3f4312ae582e47809dff9262e9edc2cd [2021-11-12 23:23:38,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:23:38,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:23:38,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:23:38,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:23:38,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:23:38,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:23:38" (1/1) ... [2021-11-12 23:23:38,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac7197a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:38, skipping insertion in model container [2021-11-12 23:23:38,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:23:38" (1/1) ... [2021-11-12 23:23:38,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:23:39,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:23:41,104 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:23:41,121 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:23:41,123 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:23:42,176 WARN L228 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_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-12 23:23:42,179 WARN L228 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_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-12 23:23:42,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:23:42,266 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:23:42,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@518349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:42, skipping insertion in model container [2021-11-12 23:23:42,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:23:42,268 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:23:42,270 INFO L158 Benchmark]: Toolchain (without parser) took 3370.46ms. Allocated memory was 92.3MB in the beginning and 226.5MB in the end (delta: 134.2MB). Free memory was 56.7MB in the beginning and 165.9MB in the end (delta: -109.2MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2021-11-12 23:23:42,270 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:23:42,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3368.43ms. Allocated memory was 92.3MB in the beginning and 226.5MB in the end (delta: 134.2MB). Free memory was 56.7MB in the beginning and 165.9MB in the end (delta: -109.2MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2021-11-12 23:23:42,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3368.43ms. Allocated memory was 92.3MB in the beginning and 226.5MB in the end (delta: 134.2MB). Free memory was 56.7MB in the beginning and 165.9MB in the end (delta: -109.2MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6391]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF --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 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:23:44,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:23:44,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:23:44,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:23:44,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:23:44,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:23:44,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:23:44,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:23:44,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:23:44,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:23:44,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:23:44,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:23:44,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:23:44,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:23:44,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:23:44,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:23:44,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:23:44,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:23:44,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:23:44,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:23:44,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:23:44,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:23:44,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:23:44,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:23:44,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:23:44,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:23:44,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:23:44,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:23:44,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:23:44,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:23:44,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:23:44,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:23:44,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:23:44,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:23:44,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:23:44,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:23:44,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:23:44,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:23:44,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:23:44,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:23:44,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:23:44,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:23:44,694 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:23:44,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:23:44,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:23:44,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:23:44,696 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:23:44,696 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:23:44,696 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:23:44,696 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:23:44,697 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:23:44,697 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:23:44,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:23:44,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:23:44,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:23:44,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:23:44,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:23:44,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:23:44,701 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:23:44,701 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:23:44,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:23:44,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:23:44,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:23:44,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:23:44,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:23:44,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:23:44,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:23:44,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:23:44,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:23:44,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:23:44,704 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:23:44,704 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:23:44,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:23:44,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:23:44,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:23:44,705 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_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf [2021-11-12 23:23:45,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:23:45,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:23:45,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:23:45,103 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:23:45,104 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:23:45,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-12 23:23:45,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data/030e7ea6f/944f71f35c974535ab3f2ff81b70ebf5/FLAGa5fceccf8 [2021-11-12 23:23:46,209 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:23:46,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-12 23:23:46,282 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data/030e7ea6f/944f71f35c974535ab3f2ff81b70ebf5/FLAGa5fceccf8 [2021-11-12 23:23:46,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/data/030e7ea6f/944f71f35c974535ab3f2ff81b70ebf5 [2021-11-12 23:23:46,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:23:46,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:23:46,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:23:46,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:23:46,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:23:46,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:23:46" (1/1) ... [2021-11-12 23:23:46,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73baf6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:46, skipping insertion in model container [2021-11-12 23:23:46,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:23:46" (1/1) ... [2021-11-12 23:23:46,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:23:46,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:23:50,112 WARN L228 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_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-12 23:23:50,116 WARN L228 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_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-12 23:23:50,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:23:50,202 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:23:50,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:23:50,708 WARN L228 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_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-12 23:23:50,709 WARN L228 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_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-12 23:23:50,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:23:50,746 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:23:51,204 WARN L228 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_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2021-11-12 23:23:51,204 WARN L228 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_7643e10e-d8f0-4763-a948-ae5076a244af/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2021-11-12 23:23:51,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:23:51,430 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:23:51,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51 WrapperNode [2021-11-12 23:23:51,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:23:51,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:23:51,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:23:51,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:23:51,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:51,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:51,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:23:51,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:23:51,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:23:51,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:23:51,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:51,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:51,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:51,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:52,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:52,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:52,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:52,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:23:52,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:23:52,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:23:52,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:23:52,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (1/1) ... [2021-11-12 23:23:52,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:23:52,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:23:52,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:23:52,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:23:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2021-11-12 23:23:52,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2021-11-12 23:23:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:23:52,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:23:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:23:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:23:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:23:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:23:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2021-11-12 23:23:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2021-11-12 23:23:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2021-11-12 23:23:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2021-11-12 23:23:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:23:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:23:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2021-11-12 23:23:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2021-11-12 23:23:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 23:23:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 23:23:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-11-12 23:23:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2021-11-12 23:23:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2021-11-12 23:23:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2021-11-12 23:23:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2021-11-12 23:23:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2021-11-12 23:23:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 23:23:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 23:23:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:23:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:23:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:23:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:23:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:23:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:23:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 23:23:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 23:23:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:23:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:23:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:23:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:23:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:23:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:23:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:23:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2021-11-12 23:23:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2021-11-12 23:23:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2021-11-12 23:23:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2021-11-12 23:23:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:23:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:23:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2021-11-12 23:23:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2021-11-12 23:23:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-12 23:23:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-12 23:23:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2021-11-12 23:23:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2021-11-12 23:23:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2021-11-12 23:23:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2021-11-12 23:23:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2021-11-12 23:23:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2021-11-12 23:23:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:23:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:23:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 23:23:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 23:23:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:23:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:23:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:23:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:23:52,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:23:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:23:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 23:23:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 23:23:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2021-11-12 23:23:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2021-11-12 23:23:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2021-11-12 23:23:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2021-11-12 23:23:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 23:23:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 23:23:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:23:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:23:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2021-11-12 23:23:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2021-11-12 23:23:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2021-11-12 23:23:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2021-11-12 23:23:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2021-11-12 23:23:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2021-11-12 23:23:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:23:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2021-11-12 23:23:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2021-11-12 23:23:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2021-11-12 23:23:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2021-11-12 23:23:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:23:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:23:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2021-11-12 23:23:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2021-11-12 23:23:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:23:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:23:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:23:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:23:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:23:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 23:23:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:23:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 23:23:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2021-11-12 23:23:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2021-11-12 23:23:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-12 23:23:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-12 23:23:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-12 23:23:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-12 23:23:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 23:23:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 23:23:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:23:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:23:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_11_2 [2021-11-12 23:23:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_11_2 [2021-11-12 23:23:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:23:52,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:23:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2021-11-12 23:23:52,264 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2021-11-12 23:23:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2021-11-12 23:23:52,266 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2021-11-12 23:23:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2021-11-12 23:23:52,267 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2021-11-12 23:23:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_detect [2021-11-12 23:23:52,272 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_detect [2021-11-12 23:23:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:23:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:23:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:23:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:23:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-11-12 23:23:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-11-12 23:23:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:23:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:23:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:23:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:23:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_exit [2021-11-12 23:23:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_exit [2021-11-12 23:23:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 23:23:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 23:23:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-11-12 23:23:52,275 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-11-12 23:23:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2021-11-12 23:23:52,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2021-11-12 23:23:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2021-11-12 23:23:52,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2021-11-12 23:23:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:23:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:23:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 23:23:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 23:23:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:23:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:23:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-12 23:23:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-12 23:23:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:23:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2021-11-12 23:23:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2021-11-12 23:23:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 23:23:52,277 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 23:23:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:23:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 23:23:52,278 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 23:23:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_eisa_cleanup [2021-11-12 23:23:52,278 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_eisa_cleanup [2021-11-12 23:23:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:23:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:23:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:23:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:23:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:23:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2021-11-12 23:23:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2021-11-12 23:23:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2021-11-12 23:23:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2021-11-12 23:23:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-12 23:23:52,279 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-12 23:23:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:23:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:23:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-12 23:23:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-12 23:23:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:23:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:23:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-12 23:23:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-12 23:23:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2021-11-12 23:23:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2021-11-12 23:23:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2021-11-12 23:23:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2021-11-12 23:23:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 23:23:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 23:23:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:23:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:23:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2021-11-12 23:23:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2021-11-12 23:23:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-12 23:23:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-12 23:23:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2021-11-12 23:23:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2021-11-12 23:23:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2021-11-12 23:23:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2021-11-12 23:23:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2021-11-12 23:23:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2021-11-12 23:23:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:23:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:23:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2021-11-12 23:23:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2021-11-12 23:23:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-12 23:23:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-12 23:23:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2021-11-12 23:23:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2021-11-12 23:23:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2021-11-12 23:23:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2021-11-12 23:23:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2021-11-12 23:23:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2021-11-12 23:23:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_97 [2021-11-12 23:23:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_97 [2021-11-12 23:23:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:23:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:23:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2021-11-12 23:23:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2021-11-12 23:23:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 23:23:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 23:23:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-12 23:23:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-12 23:23:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-12 23:23:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-12 23:23:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-12 23:23:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-12 23:23:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-12 23:23:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:23:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:23:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-12 23:23:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-12 23:23:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-12 23:23:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-12 23:24:02,394 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:24:41,554 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6907-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret372#1;havoc tlan_eisa_probe_#t~ret372#1;havoc tlan_eisa_probe_#t~nondet373#1; [2021-11-12 23:24:41,554 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6907: SUMMARY for call tlan_eisa_probe_#t~ret372#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-12 23:24:41,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: assume 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2021-11-12 23:24:41,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: assume !(64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2021-11-12 23:24:41,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6975: tlan_eisa_probe_~irq~0#1 := 10bv32; [2021-11-12 23:24:41,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: assume 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2021-11-12 23:24:41,556 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: assume !(128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2021-11-12 23:24:41,556 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6912-1: call tlan_eisa_probe_#t~ret377#1.base, tlan_eisa_probe_#t~ret377#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0bv32);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret377#1.base, tlan_eisa_probe_#t~ret377#1.offset;havoc tlan_eisa_probe_#t~ret377#1.base, tlan_eisa_probe_#t~ret377#1.offset; [2021-11-12 23:24:41,556 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: tlan_eisa_probe_~irq~0#1 := 11bv32; [2021-11-12 23:24:41,556 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6982: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet385#1; [2021-11-12 23:24:41,557 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6982: assume !(16bv32 == ~debug~0); [2021-11-12 23:24:41,557 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6922: assume 0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset); [2021-11-12 23:24:41,557 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6922: assume !(0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset)); [2021-11-12 23:24:41,557 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret378#1;havoc tlan_eisa_probe_#t~ret378#1; [2021-11-12 23:24:41,557 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret378#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-12 23:24:41,558 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: SUMMARY for call tlan_eisa_probe_#t~ret384#1 := tlan_probe1(0bv64, 0bv64, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12bv32, 0bv64, 0bv64); srcloc: null [2021-11-12 23:24:41,558 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6929: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2021-11-12 23:24:41,558 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6929: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2021-11-12 23:24:41,558 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6931: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2021-11-12 23:24:41,558 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret384#1;havoc tlan_eisa_probe_#t~ret384#1; [2021-11-12 23:24:41,559 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret379#1;havoc tlan_eisa_probe_#t~ret379#1; [2021-11-12 23:24:41,559 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937: SUMMARY for call tlan_eisa_probe_#t~ret379#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-12 23:24:41,559 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6939: assume 8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1); [2021-11-12 23:24:41,559 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6939: assume !(8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1)); [2021-11-12 23:24:41,560 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6941: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2021-11-12 23:24:41,560 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret380#1;havoc tlan_eisa_probe_#t~ret380#1; [2021-11-12 23:24:41,560 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret380#1 := inb(~bvadd32(3204bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-12 23:24:41,560 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7013-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2021-11-12 23:24:41,560 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2021-11-12 23:24:41,561 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2021-11-12 23:24:41,561 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet387#1; [2021-11-12 23:24:41,561 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951-1: assume !(16bv32 == ~debug~0); [2021-11-12 23:24:41,561 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2021-11-12 23:24:41,561 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2021-11-12 23:24:41,562 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2021-11-12 23:24:41,562 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956-2: SUMMARY for call tlan_eisa_probe_#t~ret383#1 := inb(~bvadd32(3264bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-12 23:24:41,562 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet381#1; [2021-11-12 23:24:41,562 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956: assume !(16bv32 == ~debug~0); [2021-11-12 23:24:41,562 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2021-11-12 23:24:41,563 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2021-11-12 23:24:41,563 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6963: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret383#1;havoc tlan_eisa_probe_#t~ret383#1; [2021-11-12 23:24:41,563 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6898-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2021-11-12 23:24:41,563 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6898-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2021-11-12 23:24:41,563 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:24:41,564 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6966: assume 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2021-11-12 23:24:41,564 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6966: assume !(16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2021-11-12 23:24:41,564 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6900-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret369#1;havoc tlan_eisa_probe_#t~ret369#1;havoc tlan_eisa_probe_#t~nondet370#1; [2021-11-12 23:24:41,564 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6900: SUMMARY for call tlan_eisa_probe_#t~ret369#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2021-11-12 23:24:41,564 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: tlan_eisa_probe_~irq~0#1 := 5bv32; [2021-11-12 23:24:41,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: assume 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2021-11-12 23:24:41,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: assume !(32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2021-11-12 23:24:41,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: tlan_eisa_probe_~irq~0#1 := 9bv32; [2021-11-12 23:24:41,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6905-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet375#1; [2021-11-12 23:24:41,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6905-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2021-11-12 23:24:41,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:24:41,689 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 23:24:41,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:24:41 BoogieIcfgContainer [2021-11-12 23:24:41,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:24:41,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:24:41,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:24:41,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:24:41,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:23:46" (1/3) ... [2021-11-12 23:24:41,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a9dfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:24:41, skipping insertion in model container [2021-11-12 23:24:41,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:23:51" (2/3) ... [2021-11-12 23:24:41,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a9dfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:24:41, skipping insertion in model container [2021-11-12 23:24:41,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:24:41" (3/3) ... [2021-11-12 23:24:41,702 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2021-11-12 23:24:41,708 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:24:41,708 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:24:41,767 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:24:41,774 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:24:41,774 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:24:41,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 2107 states, 1384 states have (on average 1.2695086705202312) internal successors, (1757), 1426 states have internal predecessors, (1757), 619 states have call successors, (619), 104 states have call predecessors, (619), 103 states have return successors, (614), 600 states have call predecessors, (614), 614 states have call successors, (614) [2021-11-12 23:24:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-12 23:24:41,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:41,865 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2021-11-12 23:24:41,866 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:41,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:41,871 INFO L85 PathProgramCache]: Analyzing trace with hash -102264943, now seen corresponding path program 1 times [2021-11-12 23:24:41,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:41,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497310763] [2021-11-12 23:24:41,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:41,892 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:41,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:41,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:41,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:24:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:47,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:24:47,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-12 23:24:47,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 23:24:48,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:24:48,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497310763] [2021-11-12 23:24:48,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497310763] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:48,234 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:48,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:24:48,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083305886] [2021-11-12 23:24:48,238 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:48,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:24:48,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:24:48,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:24:48,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:24:48,289 INFO L87 Difference]: Start difference. First operand has 2107 states, 1384 states have (on average 1.2695086705202312) internal successors, (1757), 1426 states have internal predecessors, (1757), 619 states have call successors, (619), 104 states have call predecessors, (619), 103 states have return successors, (614), 600 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:24:50,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:24:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:58,304 INFO L93 Difference]: Finished difference Result 6393 states and 9383 transitions. [2021-11-12 23:24:58,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:24:58,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 126 [2021-11-12 23:24:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:58,394 INFO L225 Difference]: With dead ends: 6393 [2021-11-12 23:24:58,394 INFO L226 Difference]: Without dead ends: 4228 [2021-11-12 23:24:58,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:24:58,440 INFO L933 BasicCegarLoop]: 3711 mSDtfsCounter, 5939 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 1186 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8564.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 6282 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.68ms SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9458.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:58,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5939 Valid, 6282 Invalid, 1967 Unknown, 0 Unchecked, 59.68ms Time], IncrementalHoareTripleChecker [1186 Valid, 780 Invalid, 1 Unknown, 0 Unchecked, 9458.84ms Time] [2021-11-12 23:24:58,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4228 states. [2021-11-12 23:24:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4228 to 4202. [2021-11-12 23:24:58,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4202 states, 2839 states have (on average 1.2588939767523777) internal successors, (3574), 2932 states have internal predecessors, (3574), 1135 states have call successors, (1135), 261 states have call predecessors, (1135), 227 states have return successors, (1147), 1054 states have call predecessors, (1147), 1135 states have call successors, (1147) [2021-11-12 23:24:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4202 states to 4202 states and 5856 transitions. [2021-11-12 23:24:58,889 INFO L78 Accepts]: Start accepts. Automaton has 4202 states and 5856 transitions. Word has length 126 [2021-11-12 23:24:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:58,891 INFO L470 AbstractCegarLoop]: Abstraction has 4202 states and 5856 transitions. [2021-11-12 23:24:58,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:24:58,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4202 states and 5856 transitions. [2021-11-12 23:24:58,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-12 23:24:58,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:58,905 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2021-11-12 23:24:58,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:59,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:24:59,128 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:24:59,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:59,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1299033063, now seen corresponding path program 1 times [2021-11-12 23:24:59,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:24:59,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047569717] [2021-11-12 23:24:59,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:59,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:24:59,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:24:59,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:24:59,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:25:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:04,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:25:04,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:25:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-12 23:25:04,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:25:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 23:25:05,271 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:25:05,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047569717] [2021-11-12 23:25:05,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047569717] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:05,272 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:05,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:25:05,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180136436] [2021-11-12 23:25:05,272 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:05,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:25:05,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:25:05,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:25:05,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:25:05,275 INFO L87 Difference]: Start difference. First operand 4202 states and 5856 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 23:25:07,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:25:08,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:08,422 INFO L93 Difference]: Finished difference Result 11970 states and 16926 transitions. [2021-11-12 23:25:08,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:25:08,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2021-11-12 23:25:08,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:08,513 INFO L225 Difference]: With dead ends: 11970 [2021-11-12 23:25:08,513 INFO L226 Difference]: Without dead ends: 7785 [2021-11-12 23:25:08,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:25:08,548 INFO L933 BasicCegarLoop]: 3696 mSDtfsCounter, 2905 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2459.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2905 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.02ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2553.68ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:08,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2905 Valid, 6543 Invalid, 59 Unknown, 0 Unchecked, 22.02ms Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2553.68ms Time] [2021-11-12 23:25:08,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2021-11-12 23:25:08,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7757. [2021-11-12 23:25:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7757 states, 5197 states have (on average 1.2501443140273234) internal successors, (6497), 5373 states have internal predecessors, (6497), 2122 states have call successors, (2122), 503 states have call predecessors, (2122), 437 states have return successors, (2427), 1966 states have call predecessors, (2427), 2122 states have call successors, (2427) [2021-11-12 23:25:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7757 states to 7757 states and 11046 transitions. [2021-11-12 23:25:09,075 INFO L78 Accepts]: Start accepts. Automaton has 7757 states and 11046 transitions. Word has length 130 [2021-11-12 23:25:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:09,076 INFO L470 AbstractCegarLoop]: Abstraction has 7757 states and 11046 transitions. [2021-11-12 23:25:09,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-12 23:25:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 7757 states and 11046 transitions. [2021-11-12 23:25:09,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-12 23:25:09,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:09,087 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:09,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:25:09,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:25:09,312 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:25:09,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:09,312 INFO L85 PathProgramCache]: Analyzing trace with hash -144100150, now seen corresponding path program 1 times [2021-11-12 23:25:09,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:25:09,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539545960] [2021-11-12 23:25:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:09,318 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:25:09,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:25:09,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:25:09,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:25:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:14,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:25:14,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:25:15,274 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-12 23:25:15,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:25:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 23:25:15,771 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:25:15,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539545960] [2021-11-12 23:25:15,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539545960] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:15,771 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:15,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:25:15,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561145722] [2021-11-12 23:25:15,771 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:15,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:25:15,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:25:15,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:25:15,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:25:15,773 INFO L87 Difference]: Start difference. First operand 7757 states and 11046 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-12 23:25:18,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:25:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:27,449 INFO L93 Difference]: Finished difference Result 29798 states and 42985 transitions. [2021-11-12 23:25:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:25:27,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 149 [2021-11-12 23:25:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:27,757 INFO L225 Difference]: With dead ends: 29798 [2021-11-12 23:25:27,757 INFO L226 Difference]: Without dead ends: 22058 [2021-11-12 23:25:27,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:25:27,858 INFO L933 BasicCegarLoop]: 4476 mSDtfsCounter, 6155 mSDsluCounter, 6682 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9888.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6155 SdHoareTripleChecker+Valid, 11158 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.28ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10622.04ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:27,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6155 Valid, 11158 Invalid, 1204 Unknown, 0 Unchecked, 55.28ms Time], IncrementalHoareTripleChecker [15 Valid, 1188 Invalid, 1 Unknown, 0 Unchecked, 10622.04ms Time] [2021-11-12 23:25:27,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22058 states. [2021-11-12 23:25:29,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22058 to 22026. [2021-11-12 23:25:29,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22026 states, 14687 states have (on average 1.2475658745829645) internal successors, (18323), 15211 states have internal predecessors, (18323), 6069 states have call successors, (6069), 1482 states have call predecessors, (6069), 1269 states have return successors, (7509), 5572 states have call predecessors, (7509), 6069 states have call successors, (7509) [2021-11-12 23:25:29,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22026 states to 22026 states and 31901 transitions. [2021-11-12 23:25:29,728 INFO L78 Accepts]: Start accepts. Automaton has 22026 states and 31901 transitions. Word has length 149 [2021-11-12 23:25:29,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:29,731 INFO L470 AbstractCegarLoop]: Abstraction has 22026 states and 31901 transitions. [2021-11-12 23:25:29,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-12 23:25:29,732 INFO L276 IsEmpty]: Start isEmpty. Operand 22026 states and 31901 transitions. [2021-11-12 23:25:29,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-12 23:25:29,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:29,742 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:29,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:25:29,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:25:29,968 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:25:29,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:29,968 INFO L85 PathProgramCache]: Analyzing trace with hash -311877117, now seen corresponding path program 1 times [2021-11-12 23:25:29,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:25:29,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555046547] [2021-11-12 23:25:29,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:29,975 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:25:29,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:25:29,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:25:29,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:25:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:35,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:25:35,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:25:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-12 23:25:36,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:25:37,472 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-12 23:25:37,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:25:37,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555046547] [2021-11-12 23:25:37,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555046547] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:37,472 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:37,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-12 23:25:37,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939447663] [2021-11-12 23:25:37,473 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:37,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:25:37,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:25:37,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:25:37,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:25:37,475 INFO L87 Difference]: Start difference. First operand 22026 states and 31901 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-12 23:25:39,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:25:48,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:48,316 INFO L93 Difference]: Finished difference Result 83263 states and 121387 transitions. [2021-11-12 23:25:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:25:48,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 207 [2021-11-12 23:25:48,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:48,909 INFO L225 Difference]: With dead ends: 83263 [2021-11-12 23:25:48,909 INFO L226 Difference]: Without dead ends: 61254 [2021-11-12 23:25:49,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:25:49,595 INFO L933 BasicCegarLoop]: 4271 mSDtfsCounter, 5051 mSDsluCounter, 7156 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8288.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5051 SdHoareTripleChecker+Valid, 11427 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.47ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8890.76ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:49,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5051 Valid, 11427 Invalid, 1292 Unknown, 0 Unchecked, 29.47ms Time], IncrementalHoareTripleChecker [45 Valid, 1246 Invalid, 1 Unknown, 0 Unchecked, 8890.76ms Time] [2021-11-12 23:25:49,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61254 states. [2021-11-12 23:25:53,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61254 to 61034. [2021-11-12 23:25:53,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2390687665068962) internal successors, (50668), 42297 states have internal predecessors, (50668), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-12 23:25:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87360 transitions. [2021-11-12 23:25:54,579 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87360 transitions. Word has length 207 [2021-11-12 23:25:54,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:54,580 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87360 transitions. [2021-11-12 23:25:54,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-12 23:25:54,581 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87360 transitions. [2021-11-12 23:25:54,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-12 23:25:54,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:54,598 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:54,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:25:54,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:25:54,799 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:25:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:54,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1404512319, now seen corresponding path program 1 times [2021-11-12 23:25:54,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:25:54,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426626393] [2021-11-12 23:25:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:54,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:25:54,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:25:54,805 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:25:54,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:26:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:00,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:26:00,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-12 23:26:01,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-12 23:26:02,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:02,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426626393] [2021-11-12 23:26:02,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426626393] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:26:02,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [660755228] [2021-11-12 23:26:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:02,223 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:26:02,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:26:02,227 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:26:02,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-12 23:26:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:04,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:26:04,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:06,193 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:26:06,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:26:07,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [660755228] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:07,388 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:26:07,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:26:07,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747520705] [2021-11-12 23:26:07,388 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:07,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:26:07,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:07,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:26:07,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:07,391 INFO L87 Difference]: Start difference. First operand 61034 states and 87360 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:26:09,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:26:20,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:20,416 INFO L93 Difference]: Finished difference Result 122051 states and 175498 transitions. [2021-11-12 23:26:20,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:26:20,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 207 [2021-11-12 23:26:20,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:21,156 INFO L225 Difference]: With dead ends: 122051 [2021-11-12 23:26:21,157 INFO L226 Difference]: Without dead ends: 61034 [2021-11-12 23:26:21,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:21,613 INFO L933 BasicCegarLoop]: 2922 mSDtfsCounter, 4441 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 1170 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8941.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4441 SdHoareTripleChecker+Valid, 4651 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.49ms SdHoareTripleChecker+Time, 1170 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9722.10ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:21,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4441 Valid, 4651 Invalid, 2365 Unknown, 0 Unchecked, 23.49ms Time], IncrementalHoareTripleChecker [1170 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 9722.10ms Time] [2021-11-12 23:26:21,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-12 23:26:25,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-12 23:26:25,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2378460334539763) internal successors, (50618), 42297 states have internal predecessors, (50618), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-12 23:26:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87310 transitions. [2021-11-12 23:26:26,031 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87310 transitions. Word has length 207 [2021-11-12 23:26:26,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:26,033 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87310 transitions. [2021-11-12 23:26:26,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:26:26,033 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87310 transitions. [2021-11-12 23:26:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-12 23:26:26,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:26,047 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:26,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:26,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:26,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:26:26,468 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1331094543, now seen corresponding path program 1 times [2021-11-12 23:26:26,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:26,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618657075] [2021-11-12 23:26:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:26,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:26,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:26,477 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:26,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:26:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:31,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:26:31,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-12 23:26:32,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:33,567 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-12 23:26:33,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:33,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618657075] [2021-11-12 23:26:33,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618657075] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:26:33,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1742448247] [2021-11-12 23:26:33,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:33,568 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:26:33,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:26:33,569 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:26:33,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-12 23:26:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:35,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:26:35,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:37,566 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:26:37,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:26:38,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1742448247] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:38,681 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:26:38,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:26:38,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276740388] [2021-11-12 23:26:38,682 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:38,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:26:38,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:38,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:26:38,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:38,684 INFO L87 Difference]: Start difference. First operand 61034 states and 87310 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:26:40,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:26:50,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:50,885 INFO L93 Difference]: Finished difference Result 122051 states and 175398 transitions. [2021-11-12 23:26:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:26:50,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 203 [2021-11-12 23:26:50,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:51,579 INFO L225 Difference]: With dead ends: 122051 [2021-11-12 23:26:51,580 INFO L226 Difference]: Without dead ends: 61034 [2021-11-12 23:26:51,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:51,911 INFO L933 BasicCegarLoop]: 2921 mSDtfsCounter, 2811 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8299.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.34ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9110.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:51,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 4649 Invalid, 1217 Unknown, 0 Unchecked, 17.34ms Time], IncrementalHoareTripleChecker [22 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 9110.91ms Time] [2021-11-12 23:26:51,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-12 23:26:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-12 23:26:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2366233004010565) internal successors, (50568), 42297 states have internal predecessors, (50568), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-12 23:26:55,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87260 transitions. [2021-11-12 23:26:55,546 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87260 transitions. Word has length 203 [2021-11-12 23:26:55,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:55,547 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87260 transitions. [2021-11-12 23:26:55,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:26:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87260 transitions. [2021-11-12 23:26:55,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-12 23:26:55,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:55,557 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:55,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:55,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:55,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:26:55,971 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:55,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:55,972 INFO L85 PathProgramCache]: Analyzing trace with hash -410891068, now seen corresponding path program 1 times [2021-11-12 23:26:55,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:55,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102288461] [2021-11-12 23:26:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:55,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:55,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:55,981 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:55,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:27:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:01,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:27:01,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-12 23:27:02,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-12 23:27:03,237 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:03,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102288461] [2021-11-12 23:27:03,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102288461] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:27:03,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [134672464] [2021-11-12 23:27:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:03,238 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:27:03,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:27:03,238 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:27:03,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-12 23:27:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:05,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:27:05,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:27:07,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:08,377 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:27:08,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [134672464] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:08,377 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:27:08,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:27:08,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490794621] [2021-11-12 23:27:08,378 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:08,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:08,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:08,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:08,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:27:08,380 INFO L87 Difference]: Start difference. First operand 61034 states and 87260 transitions. Second operand has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:27:10,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:27:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:20,752 INFO L93 Difference]: Finished difference Result 122051 states and 175298 transitions. [2021-11-12 23:27:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:27:20,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 204 [2021-11-12 23:27:20,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:21,191 INFO L225 Difference]: With dead ends: 122051 [2021-11-12 23:27:21,192 INFO L226 Difference]: Without dead ends: 61034 [2021-11-12 23:27:21,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:27:21,643 INFO L933 BasicCegarLoop]: 2920 mSDtfsCounter, 4445 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 1170 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8421.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4445 SdHoareTripleChecker+Valid, 4647 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.99ms SdHoareTripleChecker+Time, 1170 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9146.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:21,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4445 Valid, 4647 Invalid, 2365 Unknown, 0 Unchecked, 19.99ms Time], IncrementalHoareTripleChecker [1170 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 9146.55ms Time] [2021-11-12 23:27:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-12 23:27:24,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-12 23:27:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2354005673481365) internal successors, (50518), 42297 states have internal predecessors, (50518), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-12 23:27:24,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87210 transitions. [2021-11-12 23:27:24,990 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87210 transitions. Word has length 204 [2021-11-12 23:27:24,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:24,991 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87210 transitions. [2021-11-12 23:27:24,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:27:24,992 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87210 transitions. [2021-11-12 23:27:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-12 23:27:24,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:25,000 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:25,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:25,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:25,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:27:25,416 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:27:25,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:25,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1714479212, now seen corresponding path program 1 times [2021-11-12 23:27:25,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:27:25,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422211568] [2021-11-12 23:27:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:25,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:27:25,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:27:25,422 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:27:25,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:27:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:30,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2466 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:27:30,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:31,648 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-12 23:27:31,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:32,570 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-12 23:27:32,571 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:32,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422211568] [2021-11-12 23:27:32,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422211568] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:27:32,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1353774167] [2021-11-12 23:27:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:32,572 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:27:32,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:27:32,573 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:27:32,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-12 23:27:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:34,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 2466 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:27:34,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:27:36,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:27:37,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1353774167] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:37,848 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:27:37,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:27:37,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789862623] [2021-11-12 23:27:37,849 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:37,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:37,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:37,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:37,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:27:37,851 INFO L87 Difference]: Start difference. First operand 61034 states and 87210 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:27:40,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:27:49,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:49,788 INFO L93 Difference]: Finished difference Result 122051 states and 175198 transitions. [2021-11-12 23:27:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:27:49,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 210 [2021-11-12 23:27:49,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:50,352 INFO L225 Difference]: With dead ends: 122051 [2021-11-12 23:27:50,352 INFO L226 Difference]: Without dead ends: 61034 [2021-11-12 23:27:50,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:27:50,596 INFO L933 BasicCegarLoop]: 2919 mSDtfsCounter, 2804 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8015.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.45ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8669.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:50,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2804 Valid, 4645 Invalid, 1217 Unknown, 0 Unchecked, 15.45ms Time], IncrementalHoareTripleChecker [22 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 8669.84ms Time] [2021-11-12 23:27:50,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-12 23:27:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-12 23:27:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2341778342952168) internal successors, (50468), 42297 states have internal predecessors, (50468), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-12 23:27:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87160 transitions. [2021-11-12 23:27:54,193 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87160 transitions. Word has length 210 [2021-11-12 23:27:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:54,194 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87160 transitions. [2021-11-12 23:27:54,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:27:54,194 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87160 transitions. [2021-11-12 23:27:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-12 23:27:54,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:54,203 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:54,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-11-12 23:27:54,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:54,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:27:54,616 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:27:54,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:54,616 INFO L85 PathProgramCache]: Analyzing trace with hash 818119289, now seen corresponding path program 1 times [2021-11-12 23:27:54,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:27:54,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424869380] [2021-11-12 23:27:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:54,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:27:54,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:27:54,623 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:27:54,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:27:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:59,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 2467 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:27:59,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-12 23:28:00,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-12 23:28:01,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:01,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424869380] [2021-11-12 23:28:01,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424869380] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:28:01,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1881182690] [2021-11-12 23:28:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:01,589 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:28:01,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:28:01,591 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:28:01,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-12 23:28:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:03,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 2467 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:28:03,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:28:05,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:06,439 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:28:06,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1881182690] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:06,439 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:28:06,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:28:06,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277132380] [2021-11-12 23:28:06,440 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:06,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:28:06,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:28:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:28:06,442 INFO L87 Difference]: Start difference. First operand 61034 states and 87160 transitions. Second operand has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:28:08,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:28:18,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:18,661 INFO L93 Difference]: Finished difference Result 122051 states and 175098 transitions. [2021-11-12 23:28:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:28:18,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 211 [2021-11-12 23:28:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:19,199 INFO L225 Difference]: With dead ends: 122051 [2021-11-12 23:28:19,199 INFO L226 Difference]: Without dead ends: 61034 [2021-11-12 23:28:19,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 830 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:28:19,445 INFO L933 BasicCegarLoop]: 2918 mSDtfsCounter, 2803 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8087.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2803 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.64ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8732.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:19,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2803 Valid, 4643 Invalid, 1217 Unknown, 0 Unchecked, 15.64ms Time], IncrementalHoareTripleChecker [22 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 8732.38ms Time] [2021-11-12 23:28:19,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-12 23:28:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-12 23:28:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2329551012422968) internal successors, (50418), 42297 states have internal predecessors, (50418), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-12 23:28:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87110 transitions. [2021-11-12 23:28:23,065 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87110 transitions. Word has length 211 [2021-11-12 23:28:23,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:23,066 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87110 transitions. [2021-11-12 23:28:23,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:28:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87110 transitions. [2021-11-12 23:28:23,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-12 23:28:23,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:23,075 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:28:23,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:23,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:23,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:28:23,488 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:28:23,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:23,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2133778096, now seen corresponding path program 1 times [2021-11-12 23:28:23,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:23,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242899291] [2021-11-12 23:28:23,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:23,492 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:23,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:23,493 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:23,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 23:28:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:28,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 2468 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:28:28,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:29,810 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-12 23:28:29,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-12 23:28:30,601 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:30,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242899291] [2021-11-12 23:28:30,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242899291] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:28:30,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1155811472] [2021-11-12 23:28:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:30,601 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:28:30,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:28:30,602 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:28:30,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-12 23:28:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:32,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 2468 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:28:32,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:28:34,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-12 23:28:35,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1155811472] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:35,490 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:28:35,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [8, 8] total 12 [2021-11-12 23:28:35,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492034310] [2021-11-12 23:28:35,491 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:35,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:28:35,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:28:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:28:35,492 INFO L87 Difference]: Start difference. First operand 61034 states and 87110 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:28:37,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:28:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:48,479 INFO L93 Difference]: Finished difference Result 122051 states and 174998 transitions. [2021-11-12 23:28:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:28:48,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 212 [2021-11-12 23:28:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:48,849 INFO L225 Difference]: With dead ends: 122051 [2021-11-12 23:28:48,849 INFO L226 Difference]: Without dead ends: 61034 [2021-11-12 23:28:49,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 844 GetRequests, 834 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:28:49,145 INFO L933 BasicCegarLoop]: 2917 mSDtfsCounter, 2802 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8032.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 4641 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.08ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8894.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:49,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2802 Valid, 4641 Invalid, 1217 Unknown, 0 Unchecked, 15.08ms Time], IncrementalHoareTripleChecker [22 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 8894.81ms Time] [2021-11-12 23:28:49,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61034 states. [2021-11-12 23:28:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61034 to 61034. [2021-11-12 23:28:52,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61034 states, 40892 states have (on average 1.2317323681893768) internal successors, (50368), 42297 states have internal predecessors, (50368), 16510 states have call successors, (16510), 4256 states have call predecessors, (16510), 3631 states have return successors, (20182), 15121 states have call predecessors, (20182), 16510 states have call successors, (20182) [2021-11-12 23:28:53,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61034 states to 61034 states and 87060 transitions. [2021-11-12 23:28:53,186 INFO L78 Accepts]: Start accepts. Automaton has 61034 states and 87060 transitions. Word has length 212 [2021-11-12 23:28:53,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:53,186 INFO L470 AbstractCegarLoop]: Abstraction has 61034 states and 87060 transitions. [2021-11-12 23:28:53,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 3 states have call successors, (50), 3 states have call predecessors, (50), 4 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-12 23:28:53,187 INFO L276 IsEmpty]: Start isEmpty. Operand 61034 states and 87060 transitions. [2021-11-12 23:28:53,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-12 23:28:53,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:53,194 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:28:53,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-12 23:28:53,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:53,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:28:53,608 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:28:53,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:53,608 INFO L85 PathProgramCache]: Analyzing trace with hash 84044757, now seen corresponding path program 1 times [2021-11-12 23:28:53,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:53,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132682300] [2021-11-12 23:28:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:53,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:53,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:53,613 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:53,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 23:28:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:58,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 2469 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:28:58,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-12 23:28:59,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-12 23:29:00,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:29:00,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132682300] [2021-11-12 23:29:00,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132682300] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:29:00,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [286238046] [2021-11-12 23:29:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:00,660 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:29:00,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:29:00,661 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:29:00,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7643e10e-d8f0-4763-a948-ae5076a244af/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-12 23:29:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:03,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 2469 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:29:03,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:03,932 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-12 23:29:03,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-12 23:29:04,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [286238046] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:04,605 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:29:04,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-12 23:29:04,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636399382] [2021-11-12 23:29:04,606 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:04,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:29:04,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:29:04,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:29:04,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:29:04,608 INFO L87 Difference]: Start difference. First operand 61034 states and 87060 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-12 23:29:06,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []