./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs --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 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:01:01,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:01:01,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:01:01,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:01:01,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:01:01,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:01:01,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:01:01,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:01:01,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:01:01,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:01:01,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:01:01,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:01:01,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:01:01,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:01:01,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:01:01,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:01:01,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:01:01,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:01:01,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:01:01,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:01:01,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:01:01,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:01:01,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:01:01,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:01:01,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:01:01,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:01:01,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:01:01,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:01:01,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:01:01,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:01:01,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:01:01,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:01:01,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:01:01,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:01:01,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:01:01,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:01:01,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:01:01,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:01:01,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:01:01,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:01:01,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:01:01,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:01:01,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:01:01,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:01:01,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:01:01,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:01:01,231 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:01:01,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:01:01,231 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:01:01,232 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:01:01,238 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:01:01,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:01:01,240 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:01:01,240 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:01:01,240 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:01:01,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:01:01,241 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:01:01,241 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:01:01,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:01:01,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:01:01,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:01:01,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:01:01,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:01:01,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:01:01,243 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:01:01,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:01:01,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:01:01,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:01:01,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:01:01,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:01:01,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:01:01,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:01:01,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:01:01,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:01:01,248 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:01:01,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:01:01,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:01:01,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:01:01,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:01:01,249 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 [2021-11-19 14:01:01,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:01:01,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:01:01,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:01:01,552 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:01:01,553 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:01:01,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-19 14:01:01,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data/1692d65a3/ecd9888f52e84fd98cc764dd377862d6/FLAG3819c3ede [2021-11-19 14:01:02,673 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:01:02,673 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-19 14:01:02,741 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data/1692d65a3/ecd9888f52e84fd98cc764dd377862d6/FLAG3819c3ede [2021-11-19 14:01:02,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data/1692d65a3/ecd9888f52e84fd98cc764dd377862d6 [2021-11-19 14:01:03,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:01:03,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:01:03,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:01:03,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:01:03,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:01:03,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:02" (1/1) ... [2021-11-19 14:01:03,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28df3d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:03, skipping insertion in model container [2021-11-19 14:01:03,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:02" (1/1) ... [2021-11-19 14:01:03,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:01:03,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:01:06,114 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:01:06,123 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:01:06,239 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:01:06,300 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:01:08,712 WARN L230 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-19 14:01:08,715 WARN L230 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-19 14:01:08,743 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:01:08,845 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) [2021-11-19 14:01:08,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17b10c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08, skipping insertion in model container [2021-11-19 14:01:08,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:01:08,847 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:01:08,849 INFO L158 Benchmark]: Toolchain (without parser) took 5843.36ms. Allocated memory was 102.8MB in the beginning and 205.5MB in the end (delta: 102.8MB). Free memory was 64.3MB in the beginning and 128.1MB in the end (delta: -63.8MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2021-11-19 14:01:08,850 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 21.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:01:08,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5835.83ms. Allocated memory was 102.8MB in the beginning and 205.5MB in the end (delta: 102.8MB). Free memory was 64.3MB in the beginning and 128.1MB in the end (delta: -63.8MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2021-11-19 14:01:08,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 21.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5835.83ms. Allocated memory was 102.8MB in the beginning and 205.5MB in the end (delta: 102.8MB). Free memory was 64.3MB in the beginning and 128.1MB in the end (delta: -63.8MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6834]: 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs --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 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:01:11,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:01:11,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:01:11,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:01:11,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:01:11,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:01:11,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:01:11,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:01:11,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:01:11,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:01:11,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:01:11,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:01:11,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:01:11,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:01:11,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:01:11,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:01:11,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:01:11,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:01:11,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:01:11,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:01:11,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:01:11,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:01:11,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:01:11,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:01:11,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:01:11,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:01:11,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:01:11,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:01:11,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:01:11,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:01:11,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:01:11,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:01:11,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:01:11,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:01:11,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:01:11,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:01:11,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:01:11,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:01:11,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:01:11,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:01:11,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:01:11,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:01:11,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:01:11,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:01:11,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:01:11,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:01:11,408 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:01:11,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:01:11,408 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:01:11,408 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:01:11,409 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:01:11,409 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:01:11,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:01:11,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:01:11,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:01:11,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:01:11,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:01:11,413 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:01:11,413 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:01:11,413 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:01:11,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:01:11,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:01:11,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:01:11,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:01:11,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:01:11,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:01:11,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:01:11,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:01:11,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:01:11,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:01:11,416 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:01:11,416 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:01:11,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:01:11,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:01:11,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:01:11,417 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b31204b1d3e0e886bec362e36aa7180804ba0e69acfc232c20abd4ca078cb80 [2021-11-19 14:01:11,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:01:11,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:01:11,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:01:11,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:01:11,898 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:01:11,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-19 14:01:11,990 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data/d0b6b2f4b/f00dc533b3c04f85b41d9fb95ed79274/FLAG5cfb430d2 [2021-11-19 14:01:13,349 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:01:13,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-19 14:01:13,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data/d0b6b2f4b/f00dc533b3c04f85b41d9fb95ed79274/FLAG5cfb430d2 [2021-11-19 14:01:13,916 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/data/d0b6b2f4b/f00dc533b3c04f85b41d9fb95ed79274 [2021-11-19 14:01:13,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:01:13,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:01:13,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:01:13,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:01:13,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:01:13,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:13" (1/1) ... [2021-11-19 14:01:13,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a0a12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:13, skipping insertion in model container [2021-11-19 14:01:13,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:13" (1/1) ... [2021-11-19 14:01:13,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:01:14,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:01:19,311 WARN L230 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-19 14:01:19,314 WARN L230 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-19 14:01:19,352 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:01:19,439 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:01:19,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:01:20,149 WARN L230 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-19 14:01:20,150 WARN L230 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-19 14:01:20,157 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:01:20,220 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:01:21,076 WARN L230 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524215,524228] [2021-11-19 14:01:21,076 WARN L230 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_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[524360,524373] [2021-11-19 14:01:21,082 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:01:21,538 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:01:21,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21 WrapperNode [2021-11-19 14:01:21,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:01:21,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:01:21,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:01:21,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:01:21,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:21,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,117 INFO L137 Inliner]: procedures = 600, calls = 6377, calls flagged for inlining = 287, calls inlined = 259, statements flattened = 11847 [2021-11-19 14:01:22,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:01:22,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:01:22,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:01:22,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:01:22,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:01:22,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:01:22,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:01:22,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:01:22,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (1/1) ... [2021-11-19 14:01:22,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:01:22,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:01:22,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:01:22,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:01:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:01:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:01:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:01:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:01:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:01:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:01:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-11-19 14:01:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-11-19 14:01:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:01:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:01:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-11-19 14:01:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-11-19 14:01:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 14:01:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 14:01:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:01:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:01:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 14:01:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 14:01:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:01:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:01:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-11-19 14:01:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-11-19 14:01:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-11-19 14:01:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-11-19 14:01:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-11-19 14:01:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-11-19 14:01:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-11-19 14:01:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-11-19 14:01:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:01:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:01:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-11-19 14:01:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-11-19 14:01:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:01:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:01:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-11-19 14:01:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-11-19 14:01:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:01:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:01:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:01:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:01:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:01:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:01:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 14:01:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 14:01:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2021-11-19 14:01:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2021-11-19 14:01:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:01:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:01:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:01:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:01:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:01:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 14:01:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 14:01:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:01:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:01:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:01:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-11-19 14:01:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-11-19 14:01:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:01:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:01:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-11-19 14:01:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-11-19 14:01:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:01:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:01:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-11-19 14:01:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-11-19 14:01:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-11-19 14:01:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-11-19 14:01:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:01:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:01:23,083 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-11-19 14:01:23,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-11-19 14:01:23,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:01:23,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:01:23,084 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-11-19 14:01:23,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-11-19 14:01:23,084 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-11-19 14:01:23,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-11-19 14:01:23,084 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 14:01:23,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 14:01:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-11-19 14:01:23,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-11-19 14:01:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:01:23,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:01:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 14:01:23,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 14:01:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:01:23,085 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:01:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:01:23,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:01:23,085 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-19 14:01:23,086 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-19 14:01:23,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:01:23,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:01:23,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:01:23,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:01:23,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:01:23,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:01:23,086 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-11-19 14:01:23,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-11-19 14:01:23,086 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-19 14:01:23,086 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-19 14:01:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:01:23,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:01:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-11-19 14:01:23,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-11-19 14:01:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-11-19 14:01:23,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-11-19 14:01:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-11-19 14:01:23,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-11-19 14:01:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:01:23,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:01:23,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:01:23,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:01:23,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:01:23,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 14:01:23,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 14:01:23,088 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-19 14:01:23,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-19 14:01:23,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:01:23,088 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 14:01:23,088 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 14:01:23,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:01:23,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:01:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:01:23,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:01:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:01:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:01:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:01:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:01:23,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:01:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:01:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-11-19 14:01:23,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-11-19 14:01:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-11-19 14:01:23,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-11-19 14:01:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:01:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:01:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 14:01:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 14:01:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2021-11-19 14:01:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2021-11-19 14:01:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 14:01:23,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 14:01:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-11-19 14:01:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-11-19 14:01:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 14:01:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 14:01:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-11-19 14:01:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-11-19 14:01:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-11-19 14:01:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-11-19 14:01:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 14:01:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 14:01:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:01:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:01:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:01:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:01:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-11-19 14:01:23,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-11-19 14:01:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-11-19 14:01:23,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-11-19 14:01:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-11-19 14:01:23,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-11-19 14:01:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:01:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:01:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:01:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:01:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:01:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2021-11-19 14:01:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2021-11-19 14:01:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:01:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:01:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-19 14:01:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-19 14:01:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:01:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:01:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:01:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:01:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:01:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:01:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:01:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:01:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:01:23,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:01:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:01:23,102 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:01:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 14:01:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 14:01:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-11-19 14:01:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-11-19 14:01:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:01:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:01:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-11-19 14:01:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-11-19 14:01:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 14:01:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 14:01:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:01:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:01:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:01:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:01:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-19 14:01:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-19 14:01:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2021-11-19 14:01:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2021-11-19 14:01:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 14:01:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 14:01:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-19 14:01:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-19 14:01:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:01:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:01:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 14:01:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 14:01:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:01:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-19 14:01:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-19 14:01:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:01:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:01:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:01:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:01:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:01:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:01:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-19 14:01:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-19 14:01:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:01:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:01:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 14:01:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 14:01:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:01:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:01:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:01:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:01:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:01:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:01:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-11-19 14:01:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-11-19 14:01:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-11-19 14:01:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-11-19 14:01:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-19 14:01:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-19 14:01:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-19 14:01:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-19 14:01:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:01:23,118 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:01:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:01:23,118 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:01:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-19 14:01:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-19 14:01:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:01:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:01:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:01:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:01:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-11-19 14:01:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-11-19 14:01:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-19 14:01:23,127 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-19 14:01:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:01:23,127 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:01:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-11-19 14:01:23,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-11-19 14:01:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:01:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:01:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:01:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:01:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:01:23,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:01:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-11-19 14:01:23,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-11-19 14:01:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:01:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:01:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-11-19 14:01:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-11-19 14:01:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 14:01:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 14:01:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-19 14:01:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-19 14:01:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-11-19 14:01:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-11-19 14:01:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-19 14:01:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-19 14:01:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-19 14:01:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-19 14:01:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-11-19 14:01:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-11-19 14:01:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-11-19 14:01:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-11-19 14:01:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-11-19 14:01:23,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-11-19 14:01:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-11-19 14:01:23,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-11-19 14:01:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-11-19 14:01:23,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-11-19 14:01:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:01:23,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:01:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:01:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:01:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-19 14:01:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-19 14:01:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:01:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:01:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:01:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:01:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-19 14:01:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-11-19 14:01:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-11-19 14:01:24,500 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:01:24,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:01:26,445 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:04:06,026 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:04:11,368 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:04:11,405 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:04:11,405 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:04:11,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:11 BoogieIcfgContainer [2021-11-19 14:04:11,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:04:11,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:04:11,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:04:11,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:04:11,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:01:13" (1/3) ... [2021-11-19 14:04:11,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fee4837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:04:11, skipping insertion in model container [2021-11-19 14:04:11,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:21" (2/3) ... [2021-11-19 14:04:11,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fee4837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:04:11, skipping insertion in model container [2021-11-19 14:04:11,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:11" (3/3) ... [2021-11-19 14:04:11,421 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-19 14:04:11,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:04:11,426 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 14:04:11,491 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:04:11,503 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 [2021-11-19 14:04:11,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 14:04:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 3350 states, 2265 states have (on average 1.2657836644591611) internal successors, (2867), 2300 states have internal predecessors, (2867), 947 states have call successors, (947), 137 states have call predecessors, (947), 136 states have return successors, (942), 932 states have call predecessors, (942), 942 states have call successors, (942) [2021-11-19 14:04:11,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-19 14:04:11,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:11,640 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:11,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:04:11,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:11,645 INFO L85 PathProgramCache]: Analyzing trace with hash 300694412, now seen corresponding path program 1 times [2021-11-19 14:04:11,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:11,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205664820] [2021-11-19 14:04:11,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:11,669 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:11,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:11,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:11,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:04:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:16,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 4542 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:04:16,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:17,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2021-11-19 14:04:17,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:18,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-11-19 14:04:18,350 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:18,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205664820] [2021-11-19 14:04:18,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205664820] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:18,351 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:18,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:04:18,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579853355] [2021-11-19 14:04:18,355 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:18,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:04:18,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:18,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:04:18,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:04:18,415 INFO L87 Difference]: Start difference. First operand has 3350 states, 2265 states have (on average 1.2657836644591611) internal successors, (2867), 2300 states have internal predecessors, (2867), 947 states have call successors, (947), 137 states have call predecessors, (947), 136 states have return successors, (942), 932 states have call predecessors, (942), 942 states have call successors, (942) Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-19 14:04:20,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:45,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:45,287 INFO L93 Difference]: Finished difference Result 12240 states and 17612 transitions. [2021-11-19 14:04:45,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:45,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 222 [2021-11-19 14:04:45,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:45,419 INFO L225 Difference]: With dead ends: 12240 [2021-11-19 14:04:45,419 INFO L226 Difference]: Without dead ends: 8792 [2021-11-19 14:04:45,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:04:45,486 INFO L933 BasicCegarLoop]: 6405 mSDtfsCounter, 10810 mSDsluCounter, 6731 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 1597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10810 SdHoareTripleChecker+Valid, 13136 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1597 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:45,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10810 Valid, 13136 Invalid, 3577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1597 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 25.9s Time] [2021-11-19 14:04:45,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8792 states. [2021-11-19 14:04:46,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8792 to 8782. [2021-11-19 14:04:46,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8782 states, 5944 states have (on average 1.2493270524899058) internal successors, (7426), 6026 states have internal predecessors, (7426), 2473 states have call successors, (2473), 363 states have call predecessors, (2473), 363 states have return successors, (2473), 2451 states have call predecessors, (2473), 2473 states have call successors, (2473) [2021-11-19 14:04:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8782 states to 8782 states and 12372 transitions. [2021-11-19 14:04:46,627 INFO L78 Accepts]: Start accepts. Automaton has 8782 states and 12372 transitions. Word has length 222 [2021-11-19 14:04:46,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:46,633 INFO L470 AbstractCegarLoop]: Abstraction has 8782 states and 12372 transitions. [2021-11-19 14:04:46,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-19 14:04:46,633 INFO L276 IsEmpty]: Start isEmpty. Operand 8782 states and 12372 transitions. [2021-11-19 14:04:46,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-19 14:04:46,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:46,649 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 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] [2021-11-19 14:04:46,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:46,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:46,864 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:04:46,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash 370553001, now seen corresponding path program 1 times [2021-11-19 14:04:46,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:46,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414488687] [2021-11-19 14:04:46,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:46,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:46,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:46,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:46,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:04:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:51,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 4557 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:04:51,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2021-11-19 14:04:52,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2021-11-19 14:04:53,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:53,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414488687] [2021-11-19 14:04:53,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414488687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:53,329 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:53,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:04:53,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178333466] [2021-11-19 14:04:53,329 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:53,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:04:53,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:53,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:04:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:04:53,333 INFO L87 Difference]: Start difference. First operand 8782 states and 12372 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-19 14:04:54,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:04:56,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:56,604 INFO L93 Difference]: Finished difference Result 22229 states and 31205 transitions. [2021-11-19 14:04:56,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:04:56,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 243 [2021-11-19 14:04:56,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:56,750 INFO L225 Difference]: With dead ends: 22229 [2021-11-19 14:04:56,750 INFO L226 Difference]: Without dead ends: 13484 [2021-11-19 14:04:56,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:04:56,813 INFO L933 BasicCegarLoop]: 5321 mSDtfsCounter, 3325 mSDsluCounter, 4519 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 9840 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:56,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3325 Valid, 9840 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 14:04:56,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13484 states. [2021-11-19 14:04:58,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13484 to 13478. [2021-11-19 14:04:58,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13478 states, 9072 states have (on average 1.2429453262786596) internal successors, (11276), 9195 states have internal predecessors, (11276), 3795 states have call successors, (3795), 610 states have call predecessors, (3795), 609 states have return successors, (3796), 3758 states have call predecessors, (3796), 3795 states have call successors, (3796) [2021-11-19 14:04:58,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13478 states to 13478 states and 18867 transitions. [2021-11-19 14:04:58,267 INFO L78 Accepts]: Start accepts. Automaton has 13478 states and 18867 transitions. Word has length 243 [2021-11-19 14:04:58,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:58,269 INFO L470 AbstractCegarLoop]: Abstraction has 13478 states and 18867 transitions. [2021-11-19 14:04:58,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-19 14:04:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 13478 states and 18867 transitions. [2021-11-19 14:04:58,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-19 14:04:58,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:58,281 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:58,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:58,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:58,502 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:04:58,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:58,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2075427934, now seen corresponding path program 1 times [2021-11-19 14:04:58,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:58,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102538421] [2021-11-19 14:04:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:58,510 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:58,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:58,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:58,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:05:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:03,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 4681 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:05:03,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:05,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2021-11-19 14:05:05,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:06,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1314 trivial. 0 not checked. [2021-11-19 14:05:06,270 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:06,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102538421] [2021-11-19 14:05:06,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102538421] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:06,271 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:06,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:05:06,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739473862] [2021-11-19 14:05:06,271 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:06,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:05:06,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:06,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:05:06,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:05:06,274 INFO L87 Difference]: Start difference. First operand 13478 states and 18867 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 14:05:07,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:05:28,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:28,690 INFO L93 Difference]: Finished difference Result 37845 states and 52994 transitions. [2021-11-19 14:05:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:05:28,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 283 [2021-11-19 14:05:28,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:28,900 INFO L225 Difference]: With dead ends: 37845 [2021-11-19 14:05:28,901 INFO L226 Difference]: Without dead ends: 24404 [2021-11-19 14:05:29,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:05:29,288 INFO L933 BasicCegarLoop]: 10149 mSDtfsCounter, 8383 mSDsluCounter, 8369 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8383 SdHoareTripleChecker+Valid, 18518 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:29,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8383 Valid, 18518 Invalid, 1988 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time] [2021-11-19 14:05:29,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24404 states. [2021-11-19 14:05:31,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24404 to 24392. [2021-11-19 14:05:31,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24392 states, 16396 states have (on average 1.2410953891192973) internal successors, (20349), 16615 states have internal predecessors, (20349), 6896 states have call successors, (6896), 1099 states have call predecessors, (6896), 1098 states have return successors, (6897), 6834 states have call predecessors, (6897), 6896 states have call successors, (6897) [2021-11-19 14:05:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24392 states to 24392 states and 34142 transitions. [2021-11-19 14:05:31,302 INFO L78 Accepts]: Start accepts. Automaton has 24392 states and 34142 transitions. Word has length 283 [2021-11-19 14:05:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:31,303 INFO L470 AbstractCegarLoop]: Abstraction has 24392 states and 34142 transitions. [2021-11-19 14:05:31,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 4 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 14:05:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 24392 states and 34142 transitions. [2021-11-19 14:05:31,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-11-19 14:05:31,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:31,319 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 16, 16, 16, 16, 16, 16, 8, 8, 8, 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] [2021-11-19 14:05:31,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:31,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:31,542 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:05:31,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:31,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1931650670, now seen corresponding path program 1 times [2021-11-19 14:05:31,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:31,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707743162] [2021-11-19 14:05:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:31,548 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:31,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:31,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:31,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:05:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:36,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 4813 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:05:36,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2021-11-19 14:05:37,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2021-11-19 14:05:38,641 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:38,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707743162] [2021-11-19 14:05:38,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707743162] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:38,641 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:38,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:05:38,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11101124] [2021-11-19 14:05:38,642 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:38,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:05:38,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:38,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:05:38,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:05:38,644 INFO L87 Difference]: Start difference. First operand 24392 states and 34142 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-19 14:05:40,388 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:01,397 INFO L93 Difference]: Finished difference Result 54968 states and 76834 transitions. [2021-11-19 14:06:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:06:01,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 363 [2021-11-19 14:06:01,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:01,600 INFO L225 Difference]: With dead ends: 54968 [2021-11-19 14:06:01,600 INFO L226 Difference]: Without dead ends: 30613 [2021-11-19 14:06:01,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:06:01,720 INFO L933 BasicCegarLoop]: 9755 mSDtfsCounter, 8392 mSDsluCounter, 8043 mSDsCounter, 0 mSdLazyCounter, 1926 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8392 SdHoareTripleChecker+Valid, 17798 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:01,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8392 Valid, 17798 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1926 Invalid, 0 Unknown, 0 Unchecked, 21.3s Time] [2021-11-19 14:06:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30613 states. [2021-11-19 14:06:04,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30613 to 30601. [2021-11-19 14:06:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30601 states, 20542 states have (on average 1.2380488754746373) internal successors, (25432), 20804 states have internal predecessors, (25432), 8640 states have call successors, (8640), 1419 states have call predecessors, (8640), 1417 states have return successors, (8641), 8567 states have call predecessors, (8641), 8640 states have call successors, (8641) [2021-11-19 14:06:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30601 states to 30601 states and 42713 transitions. [2021-11-19 14:06:04,685 INFO L78 Accepts]: Start accepts. Automaton has 30601 states and 42713 transitions. Word has length 363 [2021-11-19 14:06:04,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:04,693 INFO L470 AbstractCegarLoop]: Abstraction has 30601 states and 42713 transitions. [2021-11-19 14:06:04,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2021-11-19 14:06:04,693 INFO L276 IsEmpty]: Start isEmpty. Operand 30601 states and 42713 transitions. [2021-11-19 14:06:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-11-19 14:06:04,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:04,712 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 16, 16, 16, 16, 16, 16, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:04,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:04,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:04,926 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:06:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:04,927 INFO L85 PathProgramCache]: Analyzing trace with hash 298139, now seen corresponding path program 1 times [2021-11-19 14:06:04,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:04,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752865639] [2021-11-19 14:06:04,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:04,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:04,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:04,935 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:04,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:06:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:10,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 4854 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:06:10,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 1479 trivial. 0 not checked. [2021-11-19 14:06:11,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:12,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 1674 trivial. 0 not checked. [2021-11-19 14:06:12,626 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:12,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752865639] [2021-11-19 14:06:12,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752865639] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:12,626 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:12,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:06:12,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311386659] [2021-11-19 14:06:12,626 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:12,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:06:12,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:12,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:06:12,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:06:12,628 INFO L87 Difference]: Start difference. First operand 30601 states and 42713 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-19 14:06:14,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:06:33,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:33,714 INFO L93 Difference]: Finished difference Result 68842 states and 96096 transitions. [2021-11-19 14:06:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:06:33,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 383 [2021-11-19 14:06:33,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:33,992 INFO L225 Difference]: With dead ends: 68842 [2021-11-19 14:06:33,992 INFO L226 Difference]: Without dead ends: 38278 [2021-11-19 14:06:34,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:06:34,116 INFO L933 BasicCegarLoop]: 9062 mSDtfsCounter, 8481 mSDsluCounter, 7114 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8481 SdHoareTripleChecker+Valid, 16176 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:34,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8481 Valid, 16176 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2021-11-19 14:06:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38278 states. [2021-11-19 14:06:37,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38278 to 38266. [2021-11-19 14:06:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38266 states, 25698 states have (on average 1.237722779982878) internal successors, (31807), 26022 states have internal predecessors, (31807), 10796 states have call successors, (10796), 1772 states have call predecessors, (10796), 1770 states have return successors, (10797), 10707 states have call predecessors, (10797), 10796 states have call successors, (10797) [2021-11-19 14:06:37,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38266 states to 38266 states and 53400 transitions. [2021-11-19 14:06:37,339 INFO L78 Accepts]: Start accepts. Automaton has 38266 states and 53400 transitions. Word has length 383 [2021-11-19 14:06:37,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:37,340 INFO L470 AbstractCegarLoop]: Abstraction has 38266 states and 53400 transitions. [2021-11-19 14:06:37,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-19 14:06:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 38266 states and 53400 transitions. [2021-11-19 14:06:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-19 14:06:37,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:37,357 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 16, 16, 16, 16, 16, 16, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 14:06:37,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:37,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:37,582 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:06:37,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:37,583 INFO L85 PathProgramCache]: Analyzing trace with hash -319961843, now seen corresponding path program 1 times [2021-11-19 14:06:37,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:37,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964842685] [2021-11-19 14:06:37,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:37,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:37,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:37,592 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:37,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:06:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:42,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 4982 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:06:42,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:44,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1995 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2021-11-19 14:06:44,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1995 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2021-11-19 14:06:45,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:45,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964842685] [2021-11-19 14:06:45,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964842685] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:45,529 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:45,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:06:45,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488392555] [2021-11-19 14:06:45,530 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:45,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:06:45,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:45,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:06:45,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:06:45,533 INFO L87 Difference]: Start difference. First operand 38266 states and 53400 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-19 14:06:47,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:10,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:10,772 INFO L93 Difference]: Finished difference Result 82861 states and 115661 transitions. [2021-11-19 14:07:10,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:07:10,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 446 [2021-11-19 14:07:10,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:11,065 INFO L225 Difference]: With dead ends: 82861 [2021-11-19 14:07:11,067 INFO L226 Difference]: Without dead ends: 44632 [2021-11-19 14:07:11,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:11,216 INFO L933 BasicCegarLoop]: 8226 mSDtfsCounter, 9181 mSDsluCounter, 6586 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 1032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9181 SdHoareTripleChecker+Valid, 14812 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1032 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:11,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9181 Valid, 14812 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1032 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 22.9s Time] [2021-11-19 14:07:11,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44632 states. [2021-11-19 14:07:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44632 to 44620. [2021-11-19 14:07:14,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44620 states, 29986 states have (on average 1.2380110718335222) internal successors, (37123), 30368 states have internal predecessors, (37123), 12582 states have call successors, (12582), 2052 states have call predecessors, (12582), 2050 states have return successors, (12583), 12477 states have call predecessors, (12583), 12582 states have call successors, (12583) [2021-11-19 14:07:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44620 states to 44620 states and 62288 transitions. [2021-11-19 14:07:14,591 INFO L78 Accepts]: Start accepts. Automaton has 44620 states and 62288 transitions. Word has length 446 [2021-11-19 14:07:14,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:14,592 INFO L470 AbstractCegarLoop]: Abstraction has 44620 states and 62288 transitions. [2021-11-19 14:07:14,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-19 14:07:14,593 INFO L276 IsEmpty]: Start isEmpty. Operand 44620 states and 62288 transitions. [2021-11-19 14:07:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-11-19 14:07:14,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:14,615 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 16, 16, 16, 16, 16, 16, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:14,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:14,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:14,842 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:14,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:14,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1327140255, now seen corresponding path program 1 times [2021-11-19 14:07:14,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:14,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752879174] [2021-11-19 14:07:14,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:14,853 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:14,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:14,854 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:14,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:07:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:19,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 4991 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:07:19,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1969 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 1702 trivial. 0 not checked. [2021-11-19 14:07:21,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1969 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2021-11-19 14:07:22,432 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:22,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752879174] [2021-11-19 14:07:22,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752879174] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:22,433 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:22,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:07:22,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012208676] [2021-11-19 14:07:22,434 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:22,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:07:22,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:22,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:07:22,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:22,436 INFO L87 Difference]: Start difference. First operand 44620 states and 62288 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-19 14:07:24,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:47,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:47,662 INFO L93 Difference]: Finished difference Result 95553 states and 133407 transitions. [2021-11-19 14:07:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:07:47,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 451 [2021-11-19 14:07:47,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:47,978 INFO L225 Difference]: With dead ends: 95553 [2021-11-19 14:07:47,984 INFO L226 Difference]: Without dead ends: 50970 [2021-11-19 14:07:48,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 898 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:07:48,429 INFO L933 BasicCegarLoop]: 9210 mSDtfsCounter, 8445 mSDsluCounter, 6577 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 808 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8445 SdHoareTripleChecker+Valid, 15787 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 808 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:48,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8445 Valid, 15787 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [808 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 22.2s Time] [2021-11-19 14:07:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50970 states. [2021-11-19 14:07:52,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50970 to 50958. [2021-11-19 14:07:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50958 states, 34256 states have (on average 1.237943717888837) internal successors, (42407), 34696 states have internal predecessors, (42407), 14368 states have call successors, (14368), 2334 states have call predecessors, (14368), 2332 states have return successors, (14369), 14247 states have call predecessors, (14369), 14368 states have call successors, (14369) [2021-11-19 14:07:52,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50958 states to 50958 states and 71144 transitions. [2021-11-19 14:07:52,377 INFO L78 Accepts]: Start accepts. Automaton has 50958 states and 71144 transitions. Word has length 451 [2021-11-19 14:07:52,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:52,378 INFO L470 AbstractCegarLoop]: Abstraction has 50958 states and 71144 transitions. [2021-11-19 14:07:52,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-19 14:07:52,379 INFO L276 IsEmpty]: Start isEmpty. Operand 50958 states and 71144 transitions. [2021-11-19 14:07:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-11-19 14:07:52,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:52,396 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 16, 16, 16, 16, 16, 16, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 14:07:52,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-19 14:07:52,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:52,622 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:52,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:52,623 INFO L85 PathProgramCache]: Analyzing trace with hash -544375116, now seen corresponding path program 1 times [2021-11-19 14:07:52,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:52,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092194839] [2021-11-19 14:07:52,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:52,628 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:52,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:52,631 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:52,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:07:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:57,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 4993 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:07:57,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:00,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2043 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 1638 trivial. 0 not checked. [2021-11-19 14:08:00,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:04,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2043 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 1924 trivial. 0 not checked. [2021-11-19 14:08:04,517 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:04,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092194839] [2021-11-19 14:08:04,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092194839] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:04,518 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:04,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 16 [2021-11-19 14:08:04,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234025169] [2021-11-19 14:08:04,519 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:04,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 14:08:04,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:04,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 14:08:04,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:08:04,522 INFO L87 Difference]: Start difference. First operand 50958 states and 71144 transitions. Second operand has 16 states, 15 states have (on average 12.066666666666666) internal successors, (181), 15 states have internal predecessors, (181), 6 states have call successors, (56), 3 states have call predecessors, (56), 7 states have return successors, (53), 6 states have call predecessors, (53), 6 states have call successors, (53) [2021-11-19 14:08:06,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:07,668 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:08,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:38,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:38,295 INFO L93 Difference]: Finished difference Result 136451 states and 191890 transitions. [2021-11-19 14:09:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-19 14:09:38,297 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 12.066666666666666) internal successors, (181), 15 states have internal predecessors, (181), 6 states have call successors, (56), 3 states have call predecessors, (56), 7 states have return successors, (53), 6 states have call predecessors, (53), 6 states have call successors, (53) Word has length 455 [2021-11-19 14:09:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:38,850 INFO L225 Difference]: With dead ends: 136451 [2021-11-19 14:09:38,850 INFO L226 Difference]: Without dead ends: 85500 [2021-11-19 14:09:39,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 924 GetRequests, 896 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2021-11-19 14:09:39,080 INFO L933 BasicCegarLoop]: 10669 mSDtfsCounter, 10202 mSDsluCounter, 92564 mSDsCounter, 0 mSdLazyCounter, 9052 mSolverCounterSat, 1464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10570 SdHoareTripleChecker+Valid, 103233 SdHoareTripleChecker+Invalid, 10516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1464 IncrementalHoareTripleChecker+Valid, 9052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:39,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10570 Valid, 103233 Invalid, 10516 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1464 Valid, 9052 Invalid, 0 Unknown, 0 Unchecked, 86.0s Time] [2021-11-19 14:09:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85500 states. [2021-11-19 14:09:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85500 to 71850. [2021-11-19 14:09:45,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71850 states, 48360 states have (on average 1.238358147229115) internal successors, (59887), 48988 states have internal predecessors, (59887), 20235 states have call successors, (20235), 3255 states have call predecessors, (20235), 3253 states have return successors, (20236), 20061 states have call predecessors, (20236), 20235 states have call successors, (20236) [2021-11-19 14:09:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71850 states to 71850 states and 100358 transitions. [2021-11-19 14:09:46,209 INFO L78 Accepts]: Start accepts. Automaton has 71850 states and 100358 transitions. Word has length 455 [2021-11-19 14:09:46,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:46,210 INFO L470 AbstractCegarLoop]: Abstraction has 71850 states and 100358 transitions. [2021-11-19 14:09:46,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 12.066666666666666) internal successors, (181), 15 states have internal predecessors, (181), 6 states have call successors, (56), 3 states have call predecessors, (56), 7 states have return successors, (53), 6 states have call predecessors, (53), 6 states have call successors, (53) [2021-11-19 14:09:46,211 INFO L276 IsEmpty]: Start isEmpty. Operand 71850 states and 100358 transitions. [2021-11-19 14:09:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-11-19 14:09:46,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:46,235 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 16, 16, 16, 16, 16, 16, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 14:09:46,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:46,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:46,451 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:09:46,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash -428851939, now seen corresponding path program 1 times [2021-11-19 14:09:46,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:46,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574912830] [2021-11-19 14:09:46,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:46,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:46,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:46,461 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:46,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ffe708-e02d-4f86-a1a5-5f4bbdecaf0d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:09:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:52,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 5039 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:09:52,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:54,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2043 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2021-11-19 14:09:54,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2043 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 1971 trivial. 0 not checked. [2021-11-19 14:09:55,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:55,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574912830] [2021-11-19 14:09:55,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574912830] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:55,940 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:55,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 14:09:55,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984331831] [2021-11-19 14:09:55,941 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:55,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:09:55,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:55,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:09:55,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:09:55,945 INFO L87 Difference]: Start difference. First operand 71850 states and 100358 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 2 states have call successors, (53) [2021-11-19 14:09:58,877 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 [] [2021-11-19 14:10:03,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:03,568 INFO L93 Difference]: Finished difference Result 160363 states and 225689 transitions. [2021-11-19 14:10:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:10:03,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 2 states have call successors, (53) Word has length 472 [2021-11-19 14:10:03,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:04,047 INFO L225 Difference]: With dead ends: 160363 [2021-11-19 14:10:04,047 INFO L226 Difference]: Without dead ends: 88550 [2021-11-19 14:10:04,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 943 GetRequests, 938 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:10:04,262 INFO L933 BasicCegarLoop]: 5124 mSDtfsCounter, 898 mSDsluCounter, 20016 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 25140 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:04,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 25140 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:10:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88550 states.