./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.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_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/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_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/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_dd8acdc4-1431-42d7-abdd-dedccc371601/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 cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:38:12,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:38:12,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:38:12,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:38:12,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:38:12,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:38:12,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:38:12,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:38:12,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:38:12,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:38:12,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:38:12,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:38:13,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:38:13,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:38:13,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:38:13,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:38:13,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:38:13,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:38:13,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:38:13,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:38:13,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:38:13,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:38:13,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:38:13,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:38:13,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:38:13,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:38:13,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:38:13,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:38:13,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:38:13,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:38:13,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:38:13,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:38:13,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:38:13,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:38:13,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:38:13,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:38:13,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:38:13,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:38:13,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:38:13,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:38:13,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:38:13,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:38:13,141 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:38:13,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:38:13,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:38:13,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:38:13,144 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:38:13,144 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:38:13,145 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:38:13,145 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:38:13,152 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:38:13,153 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:38:13,154 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:38:13,154 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:38:13,155 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:38:13,155 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:38:13,155 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:38:13,156 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:38:13,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:38:13,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:38:13,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:38:13,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:38:13,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:38:13,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:38:13,158 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:38:13,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:38:13,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:38:13,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:38:13,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:38:13,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:38:13,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:38:13,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:38:13,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:38:13,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:38:13,163 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:38:13,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:38:13,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:38:13,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:38:13,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:38:13,164 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_dd8acdc4-1431-42d7-abdd-dedccc371601/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 [2021-11-13 01:38:13,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:38:13,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:38:13,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:38:13,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:38:13,534 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:38:13,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-13 01:38:13,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data/24746e8ea/894e320a910646febc7bb0b1770923ea/FLAG20748bc57 [2021-11-13 01:38:14,902 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:38:14,904 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-13 01:38:14,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data/24746e8ea/894e320a910646febc7bb0b1770923ea/FLAG20748bc57 [2021-11-13 01:38:15,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data/24746e8ea/894e320a910646febc7bb0b1770923ea [2021-11-13 01:38:15,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:38:15,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:38:15,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:38:15,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:38:15,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:38:15,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:38:15" (1/1) ... [2021-11-13 01:38:15,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f275cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:15, skipping insertion in model container [2021-11-13 01:38:15,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:38:15" (1/1) ... [2021-11-13 01:38:15,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:38:15,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:38:18,392 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:38:18,423 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:38:18,469 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:38:18,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:38:18,877 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:38:21,012 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_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464446,464459] [2021-11-13 01:38:21,015 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_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464591,464604] [2021-11-13 01:38:21,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:38:21,151 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) [2021-11-13 01:38:21,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b19e825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:21, skipping insertion in model container [2021-11-13 01:38:21,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:38:21,152 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:38:21,157 INFO L158 Benchmark]: Toolchain (without parser) took 6049.36ms. Allocated memory was 90.2MB in the beginning and 153.1MB in the end (delta: 62.9MB). Free memory was 40.3MB in the beginning and 70.5MB in the end (delta: -30.2MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2021-11-13 01:38:21,158 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 90.2MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:38:21,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6045.16ms. Allocated memory was 90.2MB in the beginning and 153.1MB in the end (delta: 62.9MB). Free memory was 40.1MB in the beginning and 70.5MB in the end (delta: -30.4MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2021-11-13 01:38:21,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 90.2MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6045.16ms. Allocated memory was 90.2MB in the beginning and 153.1MB in the end (delta: 62.9MB). Free memory was 40.1MB in the beginning and 70.5MB in the end (delta: -30.4MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6898]: 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_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/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_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/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_dd8acdc4-1431-42d7-abdd-dedccc371601/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 cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:38:23,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:38:23,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:38:24,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:38:24,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:38:24,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:38:24,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:38:24,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:38:24,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:38:24,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:38:24,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:38:24,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:38:24,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:38:24,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:38:24,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:38:24,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:38:24,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:38:24,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:38:24,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:38:24,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:38:24,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:38:24,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:38:24,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:38:24,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:38:24,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:38:24,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:38:24,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:38:24,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:38:24,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:38:24,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:38:24,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:38:24,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:38:24,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:38:24,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:38:24,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:38:24,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:38:24,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:38:24,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:38:24,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:38:24,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:38:24,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:38:24,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:38:24,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:38:24,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:38:24,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:38:24,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:38:24,198 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:38:24,198 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:38:24,199 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:38:24,199 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:38:24,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:38:24,200 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:38:24,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:38:24,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:38:24,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:38:24,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:38:24,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:38:24,204 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:38:24,204 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:38:24,204 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:38:24,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:38:24,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:38:24,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:38:24,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:38:24,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:38:24,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:38:24,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:38:24,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:38:24,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:38:24,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:38:24,208 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:38:24,208 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:38:24,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:38:24,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:38:24,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:38:24,209 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_dd8acdc4-1431-42d7-abdd-dedccc371601/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 [2021-11-13 01:38:24,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:38:24,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:38:24,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:38:24,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:38:24,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:38:24,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-13 01:38:24,789 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data/e1ceaf815/f97e1f33c47749d2b7fc11170773b1b9/FLAG33e1963b2 [2021-11-13 01:38:26,000 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:38:26,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-13 01:38:26,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data/e1ceaf815/f97e1f33c47749d2b7fc11170773b1b9/FLAG33e1963b2 [2021-11-13 01:38:26,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/data/e1ceaf815/f97e1f33c47749d2b7fc11170773b1b9 [2021-11-13 01:38:26,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:38:26,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:38:26,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:38:26,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:38:26,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:38:26,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:38:26" (1/1) ... [2021-11-13 01:38:26,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f7a2502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:26, skipping insertion in model container [2021-11-13 01:38:26,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:38:26" (1/1) ... [2021-11-13 01:38:26,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:38:26,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:38:32,228 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_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464446,464459] [2021-11-13 01:38:32,233 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_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464591,464604] [2021-11-13 01:38:32,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:38:32,370 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:38:32,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:38:32,996 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_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464446,464459] [2021-11-13 01:38:32,997 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_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464591,464604] [2021-11-13 01:38:33,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:38:33,054 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:38:33,689 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_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464446,464459] [2021-11-13 01:38:33,689 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_dd8acdc4-1431-42d7-abdd-dedccc371601/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464591,464604] [2021-11-13 01:38:33,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:38:34,377 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:38:34,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34 WrapperNode [2021-11-13 01:38:34,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:38:34,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:38:34,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:38:34,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:38:34,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:34,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:34,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:38:34,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:38:34,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:38:34,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:38:34,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:34,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:35,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:35,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:35,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:35,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:35,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:35,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:38:35,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:38:35,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:38:35,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:38:35,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (1/1) ... [2021-11-13 01:38:35,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:38:35,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:38:35,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:38:35,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:38:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 01:38:35,525 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 01:38:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 01:38:35,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 01:38:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2021-11-13 01:38:35,526 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2021-11-13 01:38:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 01:38:35,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 01:38:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2021-11-13 01:38:35,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2021-11-13 01:38:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-13 01:38:35,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-13 01:38:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 01:38:35,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 01:38:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 01:38:35,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 01:38:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2021-11-13 01:38:35,528 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2021-11-13 01:38:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-13 01:38:35,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-13 01:38:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 01:38:35,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 01:38:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 01:38:35,529 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 01:38:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 01:38:35,530 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 01:38:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 01:38:35,530 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 01:38:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2021-11-13 01:38:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2021-11-13 01:38:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2021-11-13 01:38:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2021-11-13 01:38:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2021-11-13 01:38:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2021-11-13 01:38:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2021-11-13 01:38:35,532 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2021-11-13 01:38:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 01:38:35,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 01:38:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 01:38:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 01:38:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2021-11-13 01:38:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2021-11-13 01:38:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 01:38:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 01:38:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 01:38:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 01:38:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 01:38:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 01:38:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 01:38:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 01:38:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 01:38:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 01:38:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2021-11-13 01:38:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2021-11-13 01:38:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 01:38:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 01:38:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-13 01:38:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-13 01:38:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:38:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_106 [2021-11-13 01:38:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_106 [2021-11-13 01:38:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-13 01:38:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-13 01:38:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-13 01:38:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:38:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:38:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:38:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2021-11-13 01:38:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2021-11-13 01:38:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-13 01:38:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-13 01:38:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2021-11-13 01:38:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2021-11-13 01:38:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 01:38:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 01:38:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-13 01:38:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-13 01:38:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 01:38:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 01:38:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2021-11-13 01:38:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2021-11-13 01:38:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 01:38:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 01:38:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 01:38:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 01:38:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2021-11-13 01:38:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2021-11-13 01:38:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 01:38:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 01:38:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 01:38:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 01:38:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 01:38:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 01:38:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-13 01:38:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-13 01:38:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 01:38:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 01:38:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 01:38:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 01:38:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-13 01:38:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-13 01:38:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 01:38:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 01:38:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-13 01:38:35,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-13 01:38:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 01:38:35,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 01:38:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 01:38:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 01:38:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2021-11-13 01:38:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2021-11-13 01:38:35,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 01:38:35,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 01:38:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 01:38:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 01:38:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2021-11-13 01:38:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2021-11-13 01:38:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:38:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2021-11-13 01:38:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2021-11-13 01:38:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 01:38:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 01:38:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 01:38:35,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 01:38:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-13 01:38:35,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-13 01:38:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 01:38:35,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 01:38:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 01:38:35,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 01:38:35,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:38:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 01:38:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 01:38:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 01:38:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 01:38:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-13 01:38:35,552 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-13 01:38:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-13 01:38:35,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-13 01:38:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-13 01:38:35,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-13 01:38:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-13 01:38:35,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-13 01:38:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2021-11-13 01:38:35,554 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2021-11-13 01:38:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 01:38:35,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 01:38:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2021-11-13 01:38:35,555 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2021-11-13 01:38:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 01:38:35,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 01:38:35,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2021-11-13 01:38:35,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2021-11-13 01:38:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 01:38:35,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 01:38:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-13 01:38:35,556 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-13 01:38:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 01:38:35,556 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 01:38:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 01:38:35,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 01:38:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2021-11-13 01:38:35,557 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2021-11-13 01:38:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-13 01:38:35,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-13 01:38:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 01:38:35,558 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 01:38:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 01:38:35,558 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 01:38:35,559 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2021-11-13 01:38:35,559 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2021-11-13 01:38:35,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 01:38:35,559 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-13 01:38:35,559 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-13 01:38:35,559 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-13 01:38:35,560 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-13 01:38:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:38:35,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:38:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-13 01:38:35,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-13 01:38:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:38:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 01:38:35,561 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 01:38:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:38:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:38:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 01:38:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 01:38:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 01:38:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 01:38:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 01:38:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 01:38:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 01:38:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-13 01:38:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-13 01:38:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 01:38:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 01:38:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2021-11-13 01:38:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2021-11-13 01:38:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2021-11-13 01:38:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2021-11-13 01:38:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 01:38:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 01:38:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-13 01:38:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-13 01:38:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 01:38:35,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 01:38:35,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2021-11-13 01:38:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2021-11-13 01:38:35,566 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 01:38:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 01:38:35,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 01:38:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 01:38:35,567 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2021-11-13 01:38:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2021-11-13 01:38:35,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 01:38:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 01:38:35,567 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-13 01:38:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-13 01:38:35,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:38:35,568 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 01:38:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 01:38:35,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-13 01:38:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-13 01:38:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 01:38:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 01:38:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2021-11-13 01:38:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2021-11-13 01:38:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_114 [2021-11-13 01:38:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_114 [2021-11-13 01:38:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:38:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2021-11-13 01:38:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2021-11-13 01:38:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2021-11-13 01:38:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2021-11-13 01:38:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-13 01:38:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-13 01:38:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:38:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:38:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_102 [2021-11-13 01:38:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_102 [2021-11-13 01:38:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 01:38:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2021-11-13 01:38:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2021-11-13 01:38:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:38:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:38:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2021-11-13 01:38:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2021-11-13 01:38:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-13 01:38:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-13 01:38:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-13 01:38:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-13 01:38:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 01:38:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 01:38:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 01:38:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 01:38:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 01:38:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 01:38:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 01:38:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 01:38:35,575 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2021-11-13 01:38:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2021-11-13 01:38:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2021-11-13 01:38:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2021-11-13 01:38:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2021-11-13 01:38:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2021-11-13 01:38:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 01:38:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 01:38:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-13 01:38:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-13 01:38:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2021-11-13 01:38:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2021-11-13 01:38:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 01:38:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 01:38:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-13 01:38:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-13 01:38:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2021-11-13 01:38:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2021-11-13 01:38:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 01:38:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 01:38:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2021-11-13 01:38:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2021-11-13 01:38:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 01:38:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 01:38:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 01:38:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 01:38:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 01:38:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 01:38:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2021-11-13 01:38:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2021-11-13 01:38:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2021-11-13 01:38:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2021-11-13 01:38:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 01:38:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 01:38:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 01:38:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 01:38:35,582 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2021-11-13 01:38:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2021-11-13 01:38:35,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_105 [2021-11-13 01:38:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_105 [2021-11-13 01:38:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-13 01:38:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-13 01:38:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2021-11-13 01:38:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2021-11-13 01:38:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-13 01:38:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-13 01:38:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 01:38:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 01:38:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 01:38:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 01:38:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2021-11-13 01:38:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2021-11-13 01:38:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 01:38:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 01:38:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 01:38:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 01:38:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2021-11-13 01:38:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2021-11-13 01:38:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-13 01:38:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-13 01:38:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 01:38:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 01:38:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-13 01:38:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-13 01:38:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 01:38:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 01:38:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2021-11-13 01:38:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2021-11-13 01:38:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2021-11-13 01:38:35,588 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2021-11-13 01:38:38,454 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 01:40:08,074 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 01:40:08,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:40:08,486 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:40:08,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:08 BoogieIcfgContainer [2021-11-13 01:40:08,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:40:08,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:40:08,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:40:08,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:40:08,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:38:26" (1/3) ... [2021-11-13 01:40:08,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553b229a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:08, skipping insertion in model container [2021-11-13 01:40:08,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:34" (2/3) ... [2021-11-13 01:40:08,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553b229a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:08, skipping insertion in model container [2021-11-13 01:40:08,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:08" (3/3) ... [2021-11-13 01:40:08,502 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-13 01:40:08,507 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:40:08,508 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:40:08,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:40:08,598 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 [2021-11-13 01:40:08,598 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:40:08,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 2837 states, 1921 states have (on average 1.2613222280062468) internal successors, (2423), 1946 states have internal predecessors, (2423), 767 states have call successors, (767), 149 states have call predecessors, (767), 148 states have return successors, (761), 759 states have call predecessors, (761), 761 states have call successors, (761) [2021-11-13 01:40:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-13 01:40:08,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:08,735 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 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] [2021-11-13 01:40:08,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:08,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:08,741 INFO L85 PathProgramCache]: Analyzing trace with hash -24091557, now seen corresponding path program 1 times [2021-11-13 01:40:08,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:08,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852894621] [2021-11-13 01:40:08,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:08,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:08,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:08,772 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:08,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:40:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:20,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2800 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:40:20,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-13 01:40:21,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2021-11-13 01:40:23,056 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:23,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852894621] [2021-11-13 01:40:23,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852894621] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:23,058 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:23,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:40:23,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650891736] [2021-11-13 01:40:23,064 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:23,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:40:23,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:23,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:40:23,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:40:23,152 INFO L87 Difference]: Start difference. First operand has 2837 states, 1921 states have (on average 1.2613222280062468) internal successors, (2423), 1946 states have internal predecessors, (2423), 767 states have call successors, (767), 149 states have call predecessors, (767), 148 states have return successors, (761), 759 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-13 01:40:25,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:27,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:27,050 INFO L93 Difference]: Finished difference Result 7550 states and 10578 transitions. [2021-11-13 01:40:27,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:40:27,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 231 [2021-11-13 01:40:27,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:27,135 INFO L225 Difference]: With dead ends: 7550 [2021-11-13 01:40:27,136 INFO L226 Difference]: Without dead ends: 4660 [2021-11-13 01:40:27,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:40:27,178 INFO L933 BasicCegarLoop]: 4457 mSDtfsCounter, 2640 mSDsluCounter, 3820 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3152.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 8277 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 65.54ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3302.52ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:27,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2640 Valid, 8277 Invalid, 95 Unknown, 0 Unchecked, 65.54ms Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 3302.52ms Time] [2021-11-13 01:40:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2021-11-13 01:40:27,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4656. [2021-11-13 01:40:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2512626262626263) internal successors, (3964), 3211 states have internal predecessors, (3964), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2021-11-13 01:40:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6408 transitions. [2021-11-13 01:40:27,741 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6408 transitions. Word has length 231 [2021-11-13 01:40:27,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:27,745 INFO L470 AbstractCegarLoop]: Abstraction has 4656 states and 6408 transitions. [2021-11-13 01:40:27,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-13 01:40:27,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6408 transitions. [2021-11-13 01:40:27,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-13 01:40:27,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:27,764 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:27,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:27,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:27,965 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:27,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:27,966 INFO L85 PathProgramCache]: Analyzing trace with hash 757183165, now seen corresponding path program 1 times [2021-11-13 01:40:27,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:27,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9014170] [2021-11-13 01:40:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:27,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:27,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:27,981 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:28,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:40:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:40,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:40:40,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-13 01:40:41,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-13 01:40:42,465 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:42,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9014170] [2021-11-13 01:40:42,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9014170] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:42,467 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:42,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:40:42,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101349153] [2021-11-13 01:40:42,468 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:42,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:42,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:42,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:42,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:42,477 INFO L87 Difference]: Start difference. First operand 4656 states and 6408 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 01:40:44,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:01,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:01,069 INFO L93 Difference]: Finished difference Result 15073 states and 20659 transitions. [2021-11-13 01:41:01,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:41:01,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 239 [2021-11-13 01:41:01,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:01,169 INFO L225 Difference]: With dead ends: 15073 [2021-11-13 01:41:01,169 INFO L226 Difference]: Without dead ends: 10450 [2021-11-13 01:41:01,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:41:01,201 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 6356 mSDsluCounter, 6443 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16674.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6356 SdHoareTripleChecker+Valid, 13375 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.66ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17787.40ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:01,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6356 Valid, 13375 Invalid, 1575 Unknown, 0 Unchecked, 75.66ms Time], IncrementalHoareTripleChecker [43 Valid, 1531 Invalid, 1 Unknown, 0 Unchecked, 17787.40ms Time] [2021-11-13 01:41:01,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10450 states. [2021-11-13 01:41:01,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10450 to 10442. [2021-11-13 01:41:01,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10442 states, 7167 states have (on average 1.2512906376447608) internal successors, (8968), 7253 states have internal predecessors, (8968), 2645 states have call successors, (2645), 630 states have call predecessors, (2645), 629 states have return successors, (2645), 2631 states have call predecessors, (2645), 2645 states have call successors, (2645) [2021-11-13 01:41:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10442 states to 10442 states and 14258 transitions. [2021-11-13 01:41:02,032 INFO L78 Accepts]: Start accepts. Automaton has 10442 states and 14258 transitions. Word has length 239 [2021-11-13 01:41:02,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:02,034 INFO L470 AbstractCegarLoop]: Abstraction has 10442 states and 14258 transitions. [2021-11-13 01:41:02,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 01:41:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 10442 states and 14258 transitions. [2021-11-13 01:41:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-13 01:41:02,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:02,057 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 14, 14, 14, 14, 14, 14, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:02,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-13 01:41:02,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:02,284 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1327358286, now seen corresponding path program 1 times [2021-11-13 01:41:02,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:02,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179323085] [2021-11-13 01:41:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:02,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:02,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:02,291 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:02,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:41:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:14,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 3106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:41:14,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-13 01:41:15,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:17,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2021-11-13 01:41:17,252 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:17,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179323085] [2021-11-13 01:41:17,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179323085] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:17,253 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:17,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:41:17,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534763136] [2021-11-13 01:41:17,253 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:17,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:41:17,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:17,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:41:17,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:41:17,255 INFO L87 Difference]: Start difference. First operand 10442 states and 14258 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-13 01:41:19,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:32,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:32,793 INFO L93 Difference]: Finished difference Result 28063 states and 38267 transitions. [2021-11-13 01:41:32,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:41:32,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) Word has length 330 [2021-11-13 01:41:32,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:32,921 INFO L225 Difference]: With dead ends: 28063 [2021-11-13 01:41:32,921 INFO L226 Difference]: Without dead ends: 17654 [2021-11-13 01:41:32,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:41:32,976 INFO L933 BasicCegarLoop]: 6929 mSDtfsCounter, 6359 mSDsluCounter, 5535 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13974.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6359 SdHoareTripleChecker+Valid, 12464 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.42ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14917.86ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:32,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6359 Valid, 12464 Invalid, 1588 Unknown, 0 Unchecked, 41.42ms Time], IncrementalHoareTripleChecker [37 Valid, 1550 Invalid, 1 Unknown, 0 Unchecked, 14917.86ms Time] [2021-11-13 01:41:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17654 states. [2021-11-13 01:41:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17654 to 17646. [2021-11-13 01:41:34,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17646 states, 12145 states have (on average 1.2517085220255249) internal successors, (15202), 12285 states have internal predecessors, (15202), 4408 states have call successors, (4408), 1093 states have call predecessors, (4408), 1092 states have return successors, (4408), 4385 states have call predecessors, (4408), 4408 states have call successors, (4408) [2021-11-13 01:41:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17646 states to 17646 states and 24018 transitions. [2021-11-13 01:41:34,219 INFO L78 Accepts]: Start accepts. Automaton has 17646 states and 24018 transitions. Word has length 330 [2021-11-13 01:41:34,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:34,222 INFO L470 AbstractCegarLoop]: Abstraction has 17646 states and 24018 transitions. [2021-11-13 01:41:34,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-13 01:41:34,222 INFO L276 IsEmpty]: Start isEmpty. Operand 17646 states and 24018 transitions. [2021-11-13 01:41:34,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-13 01:41:34,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:34,248 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 14, 14, 14, 14, 14, 14, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:34,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:34,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:34,468 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:34,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:34,469 INFO L85 PathProgramCache]: Analyzing trace with hash 570257752, now seen corresponding path program 1 times [2021-11-13 01:41:34,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:34,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575389478] [2021-11-13 01:41:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:34,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:34,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:34,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:34,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:41:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:45,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 3247 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:41:45,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 1188 trivial. 0 not checked. [2021-11-13 01:41:46,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:48,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1365 trivial. 0 not checked. [2021-11-13 01:41:48,150 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:48,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575389478] [2021-11-13 01:41:48,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575389478] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:48,151 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:48,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:41:48,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182565593] [2021-11-13 01:41:48,151 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:48,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:41:48,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:48,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:41:48,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:41:48,154 INFO L87 Difference]: Start difference. First operand 17646 states and 24018 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-13 01:41:50,570 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 [] [2021-11-13 01:42:04,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:04,986 INFO L93 Difference]: Finished difference Result 40111 states and 54573 transitions. [2021-11-13 01:42:04,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:42:04,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 409 [2021-11-13 01:42:04,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:05,121 INFO L225 Difference]: With dead ends: 40111 [2021-11-13 01:42:05,121 INFO L226 Difference]: Without dead ends: 22498 [2021-11-13 01:42:05,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:42:05,196 INFO L933 BasicCegarLoop]: 6941 mSDtfsCounter, 6426 mSDsluCounter, 4964 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 523 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14716.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6426 SdHoareTripleChecker+Valid, 11905 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.22ms SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15865.56ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:05,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6426 Valid, 11905 Invalid, 2100 Unknown, 0 Unchecked, 42.22ms Time], IncrementalHoareTripleChecker [523 Valid, 1576 Invalid, 1 Unknown, 0 Unchecked, 15865.56ms Time] [2021-11-13 01:42:05,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22498 states. [2021-11-13 01:42:06,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22498 to 22490. [2021-11-13 01:42:06,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22490 states, 15498 states have (on average 1.2520325203252032) internal successors, (19404), 15674 states have internal predecessors, (19404), 5586 states have call successors, (5586), 1406 states have call predecessors, (5586), 1405 states have return successors, (5586), 5557 states have call predecessors, (5586), 5586 states have call successors, (5586) [2021-11-13 01:42:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22490 states to 22490 states and 30576 transitions. [2021-11-13 01:42:06,668 INFO L78 Accepts]: Start accepts. Automaton has 22490 states and 30576 transitions. Word has length 409 [2021-11-13 01:42:06,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:06,670 INFO L470 AbstractCegarLoop]: Abstraction has 22490 states and 30576 transitions. [2021-11-13 01:42:06,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-13 01:42:06,670 INFO L276 IsEmpty]: Start isEmpty. Operand 22490 states and 30576 transitions. [2021-11-13 01:42:06,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-13 01:42:06,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:06,708 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 14, 14, 14, 14, 14, 14, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:06,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:42:06,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:06,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:42:06,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:06,925 INFO L85 PathProgramCache]: Analyzing trace with hash -269980486, now seen corresponding path program 1 times [2021-11-13 01:42:06,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:06,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286492643] [2021-11-13 01:42:06,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:06,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:06,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:06,935 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:06,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:42:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:18,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 3255 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:42:18,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 1185 trivial. 0 not checked. [2021-11-13 01:42:19,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 1339 trivial. 0 not checked. [2021-11-13 01:42:20,861 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:20,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286492643] [2021-11-13 01:42:20,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286492643] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:20,861 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:20,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:42:20,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92201022] [2021-11-13 01:42:20,862 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:20,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:42:20,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:20,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:42:20,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:42:20,865 INFO L87 Difference]: Start difference. First operand 22490 states and 30576 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-13 01:42:23,277 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 [] [2021-11-13 01:42:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:37,370 INFO L93 Difference]: Finished difference Result 50332 states and 68406 transitions. [2021-11-13 01:42:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:42:37,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 413 [2021-11-13 01:42:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:37,533 INFO L225 Difference]: With dead ends: 50332 [2021-11-13 01:42:37,533 INFO L226 Difference]: Without dead ends: 27896 [2021-11-13 01:42:37,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:42:37,616 INFO L933 BasicCegarLoop]: 7144 mSDtfsCounter, 6927 mSDsluCounter, 4737 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 699 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14133.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6927 SdHoareTripleChecker+Valid, 11881 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.38ms SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15293.53ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:37,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6927 Valid, 11881 Invalid, 2144 Unknown, 0 Unchecked, 40.38ms Time], IncrementalHoareTripleChecker [699 Valid, 1444 Invalid, 1 Unknown, 0 Unchecked, 15293.53ms Time] [2021-11-13 01:42:37,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27896 states. [2021-11-13 01:42:39,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27896 to 27888. [2021-11-13 01:42:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27888 states, 19230 states have (on average 1.251118044721789) internal successors, (24059), 19444 states have internal predecessors, (24059), 6904 states have call successors, (6904), 1754 states have call predecessors, (6904), 1753 states have return successors, (6904), 6869 states have call predecessors, (6904), 6904 states have call successors, (6904) [2021-11-13 01:42:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27888 states to 27888 states and 37867 transitions. [2021-11-13 01:42:39,656 INFO L78 Accepts]: Start accepts. Automaton has 27888 states and 37867 transitions. Word has length 413 [2021-11-13 01:42:39,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:39,657 INFO L470 AbstractCegarLoop]: Abstraction has 27888 states and 37867 transitions. [2021-11-13 01:42:39,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-13 01:42:39,658 INFO L276 IsEmpty]: Start isEmpty. Operand 27888 states and 37867 transitions. [2021-11-13 01:42:39,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-13 01:42:39,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:39,707 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 14, 14, 14, 14, 14, 14, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:39,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:42:39,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:39,924 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:42:39,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:39,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1715322066, now seen corresponding path program 1 times [2021-11-13 01:42:40,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:40,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106617062] [2021-11-13 01:42:40,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:40,108 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:40,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:40,109 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:40,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:42:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:51,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 3393 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:42:51,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:52,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2021-11-13 01:42:52,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:54,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 1637 trivial. 0 not checked. [2021-11-13 01:42:54,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:54,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106617062] [2021-11-13 01:42:54,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106617062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:54,430 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:54,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:42:54,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957941296] [2021-11-13 01:42:54,431 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:54,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:42:54,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:54,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:42:54,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:42:54,434 INFO L87 Difference]: Start difference. First operand 27888 states and 37867 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-13 01:42:56,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:58,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:58,401 INFO L93 Difference]: Finished difference Result 58123 states and 78926 transitions. [2021-11-13 01:42:58,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:42:58,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 476 [2021-11-13 01:42:58,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:58,563 INFO L225 Difference]: With dead ends: 58123 [2021-11-13 01:42:58,563 INFO L226 Difference]: Without dead ends: 30289 [2021-11-13 01:42:58,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 950 GetRequests, 949 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:42:58,656 INFO L933 BasicCegarLoop]: 5661 mSDtfsCounter, 2615 mSDsluCounter, 3790 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2766.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2615 SdHoareTripleChecker+Valid, 9451 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.85ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2865.73ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:58,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2615 Valid, 9451 Invalid, 79 Unknown, 0 Unchecked, 13.85ms Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2865.73ms Time] [2021-11-13 01:42:58,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30289 states. [2021-11-13 01:43:00,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30289 to 30285. [2021-11-13 01:43:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30285 states, 20888 states have (on average 1.2509096131750288) internal successors, (26129), 21120 states have internal predecessors, (26129), 7490 states have call successors, (7490), 1907 states have call predecessors, (7490), 1906 states have return successors, (7490), 7452 states have call predecessors, (7490), 7490 states have call successors, (7490) [2021-11-13 01:43:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30285 states to 30285 states and 41109 transitions. [2021-11-13 01:43:00,951 INFO L78 Accepts]: Start accepts. Automaton has 30285 states and 41109 transitions. Word has length 476 [2021-11-13 01:43:00,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:00,952 INFO L470 AbstractCegarLoop]: Abstraction has 30285 states and 41109 transitions. [2021-11-13 01:43:00,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-13 01:43:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand 30285 states and 41109 transitions. [2021-11-13 01:43:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-13 01:43:00,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:00,988 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 14, 14, 14, 14, 14, 14, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:01,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:01,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:01,219 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:43:01,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:01,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1717811628, now seen corresponding path program 1 times [2021-11-13 01:43:01,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:01,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071461229] [2021-11-13 01:43:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:01,232 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:01,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:01,233 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:01,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:43:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:12,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 3393 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 01:43:12,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2021-11-13 01:43:15,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:18,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 1603 trivial. 0 not checked. [2021-11-13 01:43:18,282 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:18,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071461229] [2021-11-13 01:43:18,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071461229] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:18,282 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:18,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 16 [2021-11-13 01:43:18,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344133453] [2021-11-13 01:43:18,283 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:18,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 01:43:18,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:18,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 01:43:18,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-13 01:43:18,286 INFO L87 Difference]: Start difference. First operand 30285 states and 41109 transitions. Second operand has 16 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 6 states have call successors, (60), 3 states have call predecessors, (60), 7 states have return successors, (59), 6 states have call predecessors, (59), 6 states have call successors, (59) [2021-11-13 01:43:20,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:22,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:24,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:55,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:55,854 INFO L93 Difference]: Finished difference Result 115858 states and 161114 transitions. [2021-11-13 01:44:55,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-13 01:44:55,855 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 6 states have call successors, (60), 3 states have call predecessors, (60), 7 states have return successors, (59), 6 states have call predecessors, (59), 6 states have call successors, (59) Word has length 476 [2021-11-13 01:44:55,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:56,418 INFO L225 Difference]: With dead ends: 115858 [2021-11-13 01:44:56,418 INFO L226 Difference]: Without dead ends: 85625 [2021-11-13 01:44:56,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 942 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=197, Invalid=1063, Unknown=0, NotChecked=0, Total=1260 [2021-11-13 01:44:56,583 INFO L933 BasicCegarLoop]: 11419 mSDtfsCounter, 13099 mSDsluCounter, 103577 mSDsCounter, 0 mSdLazyCounter, 11493 mSolverCounterSat, 4666 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85841.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13482 SdHoareTripleChecker+Valid, 114996 SdHoareTripleChecker+Invalid, 16162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 362.77ms SdHoareTripleChecker+Time, 4666 IncrementalHoareTripleChecker+Valid, 11493 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90031.02ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:56,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13482 Valid, 114996 Invalid, 16162 Unknown, 0 Unchecked, 362.77ms Time], IncrementalHoareTripleChecker [4666 Valid, 11493 Invalid, 3 Unknown, 0 Unchecked, 90031.02ms Time] [2021-11-13 01:44:56,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85625 states. [2021-11-13 01:45:01,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85625 to 56464. [2021-11-13 01:45:01,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56464 states, 38925 states have (on average 1.25053307642903) internal successors, (48677), 39367 states have internal predecessors, (48677), 13961 states have call successors, (13961), 3579 states have call predecessors, (13961), 3577 states have return successors, (13961), 13882 states have call predecessors, (13961), 13961 states have call successors, (13961) [2021-11-13 01:45:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56464 states to 56464 states and 76599 transitions. [2021-11-13 01:45:02,043 INFO L78 Accepts]: Start accepts. Automaton has 56464 states and 76599 transitions. Word has length 476 [2021-11-13 01:45:02,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:02,045 INFO L470 AbstractCegarLoop]: Abstraction has 56464 states and 76599 transitions. [2021-11-13 01:45:02,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 6 states have call successors, (60), 3 states have call predecessors, (60), 7 states have return successors, (59), 6 states have call predecessors, (59), 6 states have call successors, (59) [2021-11-13 01:45:02,046 INFO L276 IsEmpty]: Start isEmpty. Operand 56464 states and 76599 transitions. [2021-11-13 01:45:02,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-11-13 01:45:02,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:45:02,140 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 14, 14, 14, 14, 14, 14, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:45:02,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:45:02,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:02,356 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:45:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:45:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash -341303462, now seen corresponding path program 1 times [2021-11-13 01:45:02,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:45:02,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97382130] [2021-11-13 01:45:02,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:45:02,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:45:02,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:45:02,369 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:45:02,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:45:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:45:13,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 3417 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:45:13,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:45:15,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2021-11-13 01:45:15,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:45:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2021-11-13 01:45:16,850 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:45:16,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97382130] [2021-11-13 01:45:16,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97382130] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:45:16,850 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:45:16,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 01:45:16,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107814623] [2021-11-13 01:45:16,851 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:45:16,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:45:16,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:45:16,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:45:16,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:45:16,853 INFO L87 Difference]: Start difference. First operand 56464 states and 76599 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (53), 3 states have call predecessors, (53), 4 states have return successors, (51), 4 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-13 01:45:19,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:45:23,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:45:23,073 INFO L93 Difference]: Finished difference Result 116983 states and 158524 transitions. [2021-11-13 01:45:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:45:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (53), 3 states have call predecessors, (53), 4 states have return successors, (51), 4 states have call predecessors, (51), 3 states have call successors, (51) Word has length 484 [2021-11-13 01:45:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:45:23,474 INFO L225 Difference]: With dead ends: 116983 [2021-11-13 01:45:23,474 INFO L226 Difference]: Without dead ends: 60573 [2021-11-13 01:45:23,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 966 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:45:23,642 INFO L933 BasicCegarLoop]: 6464 mSDtfsCounter, 2818 mSDsluCounter, 16706 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3054.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 23170 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.47ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3165.65ms IncrementalHoareTripleChecker+Time [2021-11-13 01:45:23,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2818 Valid, 23170 Invalid, 81 Unknown, 0 Unchecked, 37.47ms Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 3165.65ms Time] [2021-11-13 01:45:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60573 states. [2021-11-13 01:45:27,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60573 to 60553. [2021-11-13 01:45:27,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60553 states, 41697 states have (on average 1.2494184233877736) internal successors, (52097), 42181 states have internal predecessors, (52097), 14935 states have call successors, (14935), 3920 states have call predecessors, (14935), 3920 states have return successors, (14937), 14851 states have call predecessors, (14937), 14935 states have call successors, (14937) [2021-11-13 01:45:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60553 states to 60553 states and 81969 transitions. [2021-11-13 01:45:27,904 INFO L78 Accepts]: Start accepts. Automaton has 60553 states and 81969 transitions. Word has length 484 [2021-11-13 01:45:27,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:27,905 INFO L470 AbstractCegarLoop]: Abstraction has 60553 states and 81969 transitions. [2021-11-13 01:45:27,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (53), 3 states have call predecessors, (53), 4 states have return successors, (51), 4 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-13 01:45:27,905 INFO L276 IsEmpty]: Start isEmpty. Operand 60553 states and 81969 transitions. [2021-11-13 01:45:27,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2021-11-13 01:45:27,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:45:27,949 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 14, 14, 14, 14, 14, 14, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:45:28,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:45:28,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:28,164 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:45:28,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:45:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2006712056, now seen corresponding path program 1 times [2021-11-13 01:45:28,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:45:28,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786735174] [2021-11-13 01:45:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:45:28,171 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:45:28,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:45:28,173 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:45:28,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:45:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:45:39,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:45:39,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:45:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2021-11-13 01:45:41,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:45:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2021-11-13 01:45:42,561 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:45:42,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786735174] [2021-11-13 01:45:42,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786735174] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:45:42,562 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:45:42,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:45:42,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434204899] [2021-11-13 01:45:42,562 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:45:42,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:45:42,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:45:42,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:45:42,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:45:42,564 INFO L87 Difference]: Start difference. First operand 60553 states and 81969 transitions. Second operand has 8 states, 8 states have (on average 26.625) internal successors, (213), 6 states have internal predecessors, (213), 4 states have call successors, (53), 3 states have call predecessors, (53), 5 states have return successors, (52), 6 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 01:45:44,989 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 [] [2021-11-13 01:46:02,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:46:02,826 INFO L93 Difference]: Finished difference Result 127126 states and 171863 transitions. [2021-11-13 01:46:02,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:46:02,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.625) internal successors, (213), 6 states have internal predecessors, (213), 4 states have call successors, (53), 3 states have call predecessors, (53), 5 states have return successors, (52), 6 states have call predecessors, (52), 4 states have call successors, (52) Word has length 485 [2021-11-13 01:46:02,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:46:03,136 INFO L225 Difference]: With dead ends: 127126 [2021-11-13 01:46:03,136 INFO L226 Difference]: Without dead ends: 66627 [2021-11-13 01:46:03,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 972 GetRequests, 962 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:46:03,344 INFO L933 BasicCegarLoop]: 7592 mSDtfsCounter, 6595 mSDsluCounter, 28053 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 570 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15487.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6598 SdHoareTripleChecker+Valid, 35645 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.76ms SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16751.84ms IncrementalHoareTripleChecker+Time [2021-11-13 01:46:03,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6598 Valid, 35645 Invalid, 2280 Unknown, 0 Unchecked, 83.76ms Time], IncrementalHoareTripleChecker [570 Valid, 1709 Invalid, 1 Unknown, 0 Unchecked, 16751.84ms Time] [2021-11-13 01:46:03,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66627 states. [2021-11-13 01:46:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66627 to 66601. [2021-11-13 01:46:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66601 states, 45857 states have (on average 1.248380836077371) internal successors, (57247), 46389 states have internal predecessors, (57247), 16335 states have call successors, (16335), 4406 states have call predecessors, (16335), 4408 states have return successors, (16339), 16243 states have call predecessors, (16339), 16335 states have call successors, (16339) [2021-11-13 01:46:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66601 states to 66601 states and 89921 transitions. [2021-11-13 01:46:07,189 INFO L78 Accepts]: Start accepts. Automaton has 66601 states and 89921 transitions. Word has length 485 [2021-11-13 01:46:07,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:46:07,190 INFO L470 AbstractCegarLoop]: Abstraction has 66601 states and 89921 transitions. [2021-11-13 01:46:07,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.625) internal successors, (213), 6 states have internal predecessors, (213), 4 states have call successors, (53), 3 states have call predecessors, (53), 5 states have return successors, (52), 6 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 01:46:07,191 INFO L276 IsEmpty]: Start isEmpty. Operand 66601 states and 89921 transitions. [2021-11-13 01:46:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2021-11-13 01:46:07,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:46:07,227 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 14, 14, 14, 14, 14, 14, 11, 11, 11, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:46:07,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:46:07,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:46:07,429 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:46:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:46:07,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1103403967, now seen corresponding path program 1 times [2021-11-13 01:46:07,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:46:07,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281810118] [2021-11-13 01:46:07,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:46:07,436 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:46:07,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:46:07,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:46:07,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:46:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:46:18,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 3531 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:46:18,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:46:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 1423 trivial. 0 not checked. [2021-11-13 01:46:20,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:46:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 1727 trivial. 0 not checked. [2021-11-13 01:46:21,973 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:46:21,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281810118] [2021-11-13 01:46:21,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281810118] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:46:21,974 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:46:21,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:46:21,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862071291] [2021-11-13 01:46:21,975 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:46:21,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:46:21,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:46:21,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:46:21,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:46:21,976 INFO L87 Difference]: Start difference. First operand 66601 states and 89921 transitions. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 4 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-11-13 01:46:24,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:46:39,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:46:39,638 INFO L93 Difference]: Finished difference Result 126451 states and 170919 transitions. [2021-11-13 01:46:39,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:46:39,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 4 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) Word has length 516 [2021-11-13 01:46:39,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:46:39,867 INFO L225 Difference]: With dead ends: 126451 [2021-11-13 01:46:39,868 INFO L226 Difference]: Without dead ends: 59876 [2021-11-13 01:46:39,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 1028 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:46:39,999 INFO L933 BasicCegarLoop]: 7404 mSDtfsCounter, 6444 mSDsluCounter, 6022 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13373.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6444 SdHoareTripleChecker+Valid, 13426 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.93ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14267.18ms IncrementalHoareTripleChecker+Time [2021-11-13 01:46:39,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6444 Valid, 13426 Invalid, 1617 Unknown, 0 Unchecked, 38.93ms Time], IncrementalHoareTripleChecker [34 Valid, 1582 Invalid, 1 Unknown, 0 Unchecked, 14267.18ms Time] [2021-11-13 01:46:40,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59876 states. [2021-11-13 01:46:42,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59876 to 59866. [2021-11-13 01:46:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59866 states, 41301 states have (on average 1.2492433597249462) internal successors, (51595), 41759 states have internal predecessors, (51595), 14694 states have call successors, (14694), 3867 states have call predecessors, (14694), 3870 states have return successors, (14698), 14618 states have call predecessors, (14698), 14694 states have call successors, (14698) [2021-11-13 01:46:43,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59866 states to 59866 states and 80987 transitions. [2021-11-13 01:46:43,185 INFO L78 Accepts]: Start accepts. Automaton has 59866 states and 80987 transitions. Word has length 516 [2021-11-13 01:46:43,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:46:43,186 INFO L470 AbstractCegarLoop]: Abstraction has 59866 states and 80987 transitions. [2021-11-13 01:46:43,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 4 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-11-13 01:46:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 59866 states and 80987 transitions. [2021-11-13 01:46:43,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2021-11-13 01:46:43,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:46:43,221 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 14, 14, 14, 14, 14, 14, 11, 11, 11, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:46:43,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:46:43,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:46:43,436 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:46:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:46:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash 882087704, now seen corresponding path program 1 times [2021-11-13 01:46:43,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:46:43,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686697627] [2021-11-13 01:46:43,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:46:43,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:46:43,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:46:43,442 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:46:43,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:46:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:46:54,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 3457 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:46:54,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:46:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2021-11-13 01:46:55,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:46:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 1832 trivial. 0 not checked. [2021-11-13 01:46:57,139 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:46:57,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686697627] [2021-11-13 01:46:57,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686697627] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:46:57,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:46:57,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-13 01:46:57,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988909368] [2021-11-13 01:46:57,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:46:57,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:46:57,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:46:57,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:46:57,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:46:57,142 INFO L87 Difference]: Start difference. First operand 59866 states and 80987 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-13 01:46:59,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:47:02,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:47:02,953 INFO L93 Difference]: Finished difference Result 122574 states and 165744 transitions. [2021-11-13 01:47:02,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:47:02,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) Word has length 513 [2021-11-13 01:47:02,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:47:03,191 INFO L225 Difference]: With dead ends: 122574 [2021-11-13 01:47:03,191 INFO L226 Difference]: Without dead ends: 62762 [2021-11-13 01:47:03,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 1018 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:47:03,469 INFO L933 BasicCegarLoop]: 6370 mSDtfsCounter, 2652 mSDsluCounter, 16505 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3066.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 22875 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.22ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3184.33ms IncrementalHoareTripleChecker+Time [2021-11-13 01:47:03,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2652 Valid, 22875 Invalid, 109 Unknown, 0 Unchecked, 26.22ms Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 1 Unknown, 0 Unchecked, 3184.33ms Time] [2021-11-13 01:47:03,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62762 states. [2021-11-13 01:47:06,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62762 to 62750. [2021-11-13 01:47:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62750 states, 43285 states have (on average 1.2486311655307842) internal successors, (54047), 43767 states have internal predecessors, (54047), 15372 states have call successors, (15372), 4087 states have call predecessors, (15372), 4092 states have return successors, (15378), 15293 states have call predecessors, (15378), 15372 states have call successors, (15378) [2021-11-13 01:47:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62750 states to 62750 states and 84797 transitions. [2021-11-13 01:47:06,600 INFO L78 Accepts]: Start accepts. Automaton has 62750 states and 84797 transitions. Word has length 513 [2021-11-13 01:47:06,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:47:06,601 INFO L470 AbstractCegarLoop]: Abstraction has 62750 states and 84797 transitions. [2021-11-13 01:47:06,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 4 states have internal predecessors, (201), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-13 01:47:06,601 INFO L276 IsEmpty]: Start isEmpty. Operand 62750 states and 84797 transitions. [2021-11-13 01:47:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2021-11-13 01:47:06,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:47:06,637 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 14, 14, 14, 14, 14, 14, 11, 11, 11, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:47:06,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-13 01:47:06,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:47:06,844 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:47:06,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:47:06,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1012907878, now seen corresponding path program 1 times [2021-11-13 01:47:06,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:47:06,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106444835] [2021-11-13 01:47:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:47:06,849 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:47:06,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:47:06,851 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:47:06,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 01:47:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:47:17,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 3458 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:47:17,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:47:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2021-11-13 01:47:19,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:47:20,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 1832 trivial. 0 not checked. [2021-11-13 01:47:20,639 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:47:20,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106444835] [2021-11-13 01:47:20,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106444835] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:47:20,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:47:20,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-13 01:47:20,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050047973] [2021-11-13 01:47:20,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:47:20,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:47:20,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:47:20,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:47:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:47:20,642 INFO L87 Difference]: Start difference. First operand 62750 states and 84797 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-13 01:47:23,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:47:26,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:47:26,914 INFO L93 Difference]: Finished difference Result 128340 states and 173443 transitions. [2021-11-13 01:47:26,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:47:26,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) Word has length 514 [2021-11-13 01:47:26,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:47:27,150 INFO L225 Difference]: With dead ends: 128340 [2021-11-13 01:47:27,151 INFO L226 Difference]: Without dead ends: 65644 [2021-11-13 01:47:27,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1026 GetRequests, 1020 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:47:27,287 INFO L933 BasicCegarLoop]: 6141 mSDtfsCounter, 2656 mSDsluCounter, 16048 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3254.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 22189 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.11ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3511.90ms IncrementalHoareTripleChecker+Time [2021-11-13 01:47:27,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2656 Valid, 22189 Invalid, 137 Unknown, 0 Unchecked, 26.11ms Time], IncrementalHoareTripleChecker [16 Valid, 120 Invalid, 1 Unknown, 0 Unchecked, 3511.90ms Time] [2021-11-13 01:47:27,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65644 states. [2021-11-13 01:47:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65644 to 65632. [2021-11-13 01:47:30,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65632 states, 45272 states have (on average 1.2484096130058313) internal successors, (56518), 45772 states have internal predecessors, (56518), 16073 states have call successors, (16073), 4279 states have call predecessors, (16073), 4286 states have return successors, (16081), 15993 states have call predecessors, (16081), 16073 states have call successors, (16081) [2021-11-13 01:47:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65632 states to 65632 states and 88672 transitions. [2021-11-13 01:47:30,658 INFO L78 Accepts]: Start accepts. Automaton has 65632 states and 88672 transitions. Word has length 514 [2021-11-13 01:47:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:47:30,659 INFO L470 AbstractCegarLoop]: Abstraction has 65632 states and 88672 transitions. [2021-11-13 01:47:30,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-13 01:47:30,659 INFO L276 IsEmpty]: Start isEmpty. Operand 65632 states and 88672 transitions. [2021-11-13 01:47:30,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2021-11-13 01:47:30,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:47:30,697 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 14, 14, 14, 14, 14, 14, 11, 11, 11, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:47:30,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 01:47:30,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:47:30,912 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:47:30,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:47:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash -233227973, now seen corresponding path program 1 times [2021-11-13 01:47:30,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:47:30,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867606649] [2021-11-13 01:47:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:47:30,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:47:30,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:47:30,920 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:47:30,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 01:47:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:47:41,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 3459 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:47:41,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:47:43,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2021-11-13 01:47:43,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:47:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 1832 trivial. 0 not checked. [2021-11-13 01:47:45,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:47:45,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867606649] [2021-11-13 01:47:45,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867606649] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:47:45,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:47:45,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-13 01:47:45,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071137144] [2021-11-13 01:47:45,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:47:45,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:47:45,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:47:45,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:47:45,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:47:45,057 INFO L87 Difference]: Start difference. First operand 65632 states and 88672 transitions. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-13 01:47:47,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:47:51,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:47:51,405 INFO L93 Difference]: Finished difference Result 131346 states and 177442 transitions. [2021-11-13 01:47:51,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:47:51,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) Word has length 515 [2021-11-13 01:47:51,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:47:51,634 INFO L225 Difference]: With dead ends: 131346 [2021-11-13 01:47:51,634 INFO L226 Difference]: Without dead ends: 65768 [2021-11-13 01:47:51,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1022 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:47:51,939 INFO L933 BasicCegarLoop]: 6490 mSDtfsCounter, 2663 mSDsluCounter, 16745 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3190.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2663 SdHoareTripleChecker+Valid, 23235 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.16ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3310.15ms IncrementalHoareTripleChecker+Time [2021-11-13 01:47:51,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2663 Valid, 23235 Invalid, 141 Unknown, 0 Unchecked, 28.16ms Time], IncrementalHoareTripleChecker [17 Valid, 123 Invalid, 1 Unknown, 0 Unchecked, 3310.15ms Time] [2021-11-13 01:47:51,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65768 states. [2021-11-13 01:47:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65768 to 65756. [2021-11-13 01:47:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65756 states, 45368 states have (on average 1.247928055016752) internal successors, (56616), 45868 states have internal predecessors, (56616), 16085 states have call successors, (16085), 4295 states have call predecessors, (16085), 4302 states have return successors, (16093), 16005 states have call predecessors, (16093), 16085 states have call successors, (16093) [2021-11-13 01:47:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65756 states to 65756 states and 88794 transitions. [2021-11-13 01:47:55,451 INFO L78 Accepts]: Start accepts. Automaton has 65756 states and 88794 transitions. Word has length 515 [2021-11-13 01:47:55,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:47:55,451 INFO L470 AbstractCegarLoop]: Abstraction has 65756 states and 88794 transitions. [2021-11-13 01:47:55,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-13 01:47:55,452 INFO L276 IsEmpty]: Start isEmpty. Operand 65756 states and 88794 transitions. [2021-11-13 01:47:55,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2021-11-13 01:47:55,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:47:55,483 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 14, 14, 14, 14, 14, 14, 12, 12, 12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:47:55,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-13 01:47:55,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:47:55,684 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:47:55,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:47:55,684 INFO L85 PathProgramCache]: Analyzing trace with hash 544330947, now seen corresponding path program 1 times [2021-11-13 01:47:55,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:47:55,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279778817] [2021-11-13 01:47:55,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:47:55,690 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:47:55,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:47:55,691 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:47:55,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd8acdc4-1431-42d7-abdd-dedccc371601/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 01:48:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:48:06,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 3576 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:48:06,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:48:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2157 backedges. 803 proven. 0 refuted. 0 times theorem prover too weak. 1354 trivial. 0 not checked. [2021-11-13 01:48:11,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:48:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2157 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 1996 trivial. 0 not checked. [2021-11-13 01:48:15,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:48:15,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279778817] [2021-11-13 01:48:15,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279778817] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:48:15,435 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:48:15,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:48:15,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030388579] [2021-11-13 01:48:15,436 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:48:15,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:48:15,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:48:15,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:48:15,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:48:15,438 INFO L87 Difference]: Start difference. First operand 65756 states and 88794 transitions. Second operand has 8 states, 8 states have (on average 41.875) internal successors, (335), 8 states have internal predecessors, (335), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) [2021-11-13 01:48:17,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:48:19,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:48:21,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:48:23,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:50:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:50:13,769 INFO L93 Difference]: Finished difference Result 301188 states and 413768 transitions. [2021-11-13 01:50:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 01:50:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 41.875) internal successors, (335), 8 states have internal predecessors, (335), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) Word has length 566 [2021-11-13 01:50:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:50:15,173 INFO L225 Difference]: With dead ends: 301188 [2021-11-13 01:50:15,173 INFO L226 Difference]: Without dead ends: 231096 [2021-11-13 01:50:15,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1134 GetRequests, 1125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:50:15,428 INFO L933 BasicCegarLoop]: 8789 mSDtfsCounter, 13397 mSDsluCounter, 18898 mSDsCounter, 0 mSdLazyCounter, 13710 mSolverCounterSat, 2629 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100001.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14077 SdHoareTripleChecker+Valid, 27687 SdHoareTripleChecker+Invalid, 16343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 155.37ms SdHoareTripleChecker+Time, 2629 IncrementalHoareTripleChecker+Valid, 13710 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104993.71ms IncrementalHoareTripleChecker+Time [2021-11-13 01:50:15,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14077 Valid, 27687 Invalid, 16343 Unknown, 0 Unchecked, 155.37ms Time], IncrementalHoareTripleChecker [2629 Valid, 13710 Invalid, 4 Unknown, 0 Unchecked, 104993.71ms Time] [2021-11-13 01:50:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231096 states.