./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-dec-tulip-uli526x.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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:14:54,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:14:54,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:14:54,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:14:54,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:14:54,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:14:54,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:14:54,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:14:54,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:14:54,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:14:54,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:14:54,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:14:54,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:14:54,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:14:54,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:14:54,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:14:54,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:14:54,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:14:54,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:14:54,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:14:54,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:14:54,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:14:54,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:14:54,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:14:54,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:14:54,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:14:54,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:14:54,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:14:54,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:14:54,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:14:54,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:14:54,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:14:54,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:14:54,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:14:54,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:14:54,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:14:54,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:14:54,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:14:54,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:14:54,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:14:54,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:14:54,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:14:54,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:14:54,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:14:54,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:14:54,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:14:54,202 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:14:54,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:14:54,203 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:14:54,203 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:14:54,203 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:14:54,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:14:54,205 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:14:54,205 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:14:54,205 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:14:54,205 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:14:54,206 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:14:54,206 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:14:54,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:14:54,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:14:54,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:14:54,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:14:54,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:14:54,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:14:54,208 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:14:54,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:14:54,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:14:54,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:14:54,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:14:54,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:14:54,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:54,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:14:54,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:14:54,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:14:54,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:14:54,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:14:54,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:14:54,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:14:54,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:14:54,212 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2021-11-19 14:14:54,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:14:54,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:14:54,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:14:54,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:14:54,545 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:14:54,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 14:14:54,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data/055d1af30/50af91b281d04c6da02e529a0a601983/FLAGd223ac296 [2021-11-19 14:14:55,612 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:14:55,613 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 14:14:55,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data/055d1af30/50af91b281d04c6da02e529a0a601983/FLAGd223ac296 [2021-11-19 14:14:55,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data/055d1af30/50af91b281d04c6da02e529a0a601983 [2021-11-19 14:14:55,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:14:55,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:14:55,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:55,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:14:55,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:14:55,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:55" (1/1) ... [2021-11-19 14:14:55,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9434ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:55, skipping insertion in model container [2021-11-19 14:14:55,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:55" (1/1) ... [2021-11-19 14:14:55,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:14:56,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:57,778 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 14:14:57,780 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 14:14:58,744 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-19 14:14:58,747 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-19 14:14:58,773 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:58,818 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 14:14:58,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@57e94a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:58, skipping insertion in model container [2021-11-19 14:14:58,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:58,819 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:14:58,821 INFO L158 Benchmark]: Toolchain (without parser) took 2846.12ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 57.8MB in the beginning and 71.7MB in the end (delta: -13.8MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2021-11-19 14:14:58,822 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:14:58,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2840.74ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 57.5MB in the beginning and 71.7MB in the end (delta: -14.1MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2021-11-19 14:14:58,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2840.74ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 57.5MB in the beginning and 71.7MB in the end (delta: -14.1MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6095]: 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:15:01,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:15:01,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:15:01,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:15:01,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:15:01,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:15:01,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:15:01,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:15:01,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:15:01,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:15:01,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:15:01,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:15:01,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:15:01,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:15:01,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:15:01,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:15:01,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:15:01,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:15:01,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:15:01,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:15:01,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:15:01,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:15:01,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:15:01,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:15:01,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:15:01,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:15:01,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:15:01,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:15:01,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:15:01,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:15:01,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:15:01,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:15:01,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:15:01,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:15:01,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:15:01,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:15:01,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:15:01,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:15:01,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:15:01,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:15:01,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:15:01,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:15:01,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:15:01,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:15:01,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:15:01,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:15:01,234 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:15:01,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:15:01,235 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:15:01,235 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:15:01,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:15:01,236 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:15:01,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:15:01,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:15:01,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:15:01,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:15:01,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:15:01,240 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:15:01,240 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:15:01,240 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:15:01,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:15:01,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:15:01,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:15:01,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:15:01,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:15:01,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:15:01,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:15:01,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:15:01,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:15:01,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:15:01,243 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:15:01,243 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:15:01,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:15:01,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:15:01,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:15:01,244 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2021-11-19 14:15:01,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:15:01,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:15:01,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:15:01,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:15:01,634 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:15:01,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 14:15:01,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data/3a4aaf7b0/c8c40c5bfcfd4b28a26e7fea95401720/FLAGe54eba32c [2021-11-19 14:15:02,751 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:15:02,752 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 14:15:02,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data/3a4aaf7b0/c8c40c5bfcfd4b28a26e7fea95401720/FLAGe54eba32c [2021-11-19 14:15:03,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/data/3a4aaf7b0/c8c40c5bfcfd4b28a26e7fea95401720 [2021-11-19 14:15:03,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:15:03,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:15:03,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:15:03,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:15:03,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:15:03,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:15:03" (1/1) ... [2021-11-19 14:15:03,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a355b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:03, skipping insertion in model container [2021-11-19 14:15:03,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:15:03" (1/1) ... [2021-11-19 14:15:03,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:15:03,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:15:05,921 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-19 14:15:05,924 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-19 14:15:05,943 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:15:06,028 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:15:06,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:15:06,468 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-19 14:15:06,468 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-19 14:15:06,474 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:15:06,508 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:15:06,959 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-19 14:15:06,960 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_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-19 14:15:06,967 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:15:07,208 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:15:07,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07 WrapperNode [2021-11-19 14:15:07,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:15:07,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:15:07,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:15:07,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:15:07,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,507 INFO L137 Inliner]: procedures = 425, calls = 1719, calls flagged for inlining = 194, calls inlined = 178, statements flattened = 4048 [2021-11-19 14:15:07,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:15:07,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:15:07,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:15:07,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:15:07,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:15:07,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:15:07,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:15:07,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:15:07,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (1/1) ... [2021-11-19 14:15:07,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:15:07,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:15:07,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:15:07,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:15:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2021-11-19 14:15:07,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2021-11-19 14:15:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:15:07,953 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:15:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:15:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:15:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 14:15:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 14:15:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:15:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:15:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:15:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:15:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:15:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:15:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-19 14:15:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-19 14:15:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:15:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:15:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-19 14:15:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-19 14:15:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2021-11-19 14:15:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2021-11-19 14:15:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:15:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:15:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:15:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:15:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:15:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:15:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 14:15:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 14:15:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:15:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:15:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:15:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:15:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-19 14:15:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-19 14:15:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:15:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2021-11-19 14:15:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2021-11-19 14:15:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:15:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:15:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:15:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:15:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:15:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:15:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:15:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:15:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:15:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2021-11-19 14:15:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2021-11-19 14:15:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2021-11-19 14:15:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2021-11-19 14:15:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-19 14:15:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-19 14:15:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:15:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:15:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:15:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:15:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:15:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:15:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:15:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:15:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:15:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:15:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:15:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:15:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:15:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:15:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:15:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:15:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2021-11-19 14:15:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2021-11-19 14:15:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2021-11-19 14:15:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2021-11-19 14:15:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:15:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:15:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:15:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:15:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:15:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:15:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-19 14:15:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-19 14:15:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:15:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:15:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:15:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:15:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:15:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:15:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:15:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:15:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:15:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:15:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:15:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:15:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 14:15:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 14:15:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:15:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:15:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:15:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:15:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:15:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:15:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:15:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:15:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:15:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-19 14:15:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-19 14:15:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:15:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:15:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:15:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2021-11-19 14:15:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2021-11-19 14:15:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2021-11-19 14:15:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2021-11-19 14:15:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:15:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:15:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:15:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:15:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:15:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:15:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:15:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:15:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:15:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-19 14:15:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-19 14:15:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:15:07,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:15:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:15:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:15:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 14:15:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 14:15:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:15:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:15:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:15:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:15:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-19 14:15:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-19 14:15:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-19 14:15:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-19 14:15:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:15:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:15:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:15:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:15:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:15:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:15:07,980 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 14:15:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 14:15:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:15:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:15:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:15:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:15:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:15:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:15:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:15:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:15:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:15:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2021-11-19 14:15:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2021-11-19 14:15:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:15:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:15:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2021-11-19 14:15:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2021-11-19 14:15:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-19 14:15:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-19 14:15:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2021-11-19 14:15:07,983 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2021-11-19 14:15:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-19 14:15:07,984 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-19 14:15:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:15:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:15:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:15:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:15:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:15:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:15:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-19 14:15:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-19 14:15:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2021-11-19 14:15:07,985 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2021-11-19 14:15:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:15:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:15:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 14:15:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 14:15:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 14:15:07,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 14:15:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2021-11-19 14:15:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2021-11-19 14:15:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:15:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:15:08,719 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:15:08,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:15:16,047 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:15:49,896 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:15:50,022 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:15:50,051 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:15:50,051 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:15:50,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:50 BoogieIcfgContainer [2021-11-19 14:15:50,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:15:50,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:15:50,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:15:50,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:15:50,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:15:03" (1/3) ... [2021-11-19 14:15:50,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e22cab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:15:50, skipping insertion in model container [2021-11-19 14:15:50,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:07" (2/3) ... [2021-11-19 14:15:50,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e22cab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:15:50, skipping insertion in model container [2021-11-19 14:15:50,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:50" (3/3) ... [2021-11-19 14:15:50,066 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-19 14:15:50,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:15:50,073 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:15:50,160 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:15:50,167 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 14:15:50,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:15:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 1507 states, 1037 states have (on average 1.296046287367406) internal successors, (1344), 1058 states have internal predecessors, (1344), 391 states have call successors, (391), 79 states have call predecessors, (391), 78 states have return successors, (385), 379 states have call predecessors, (385), 385 states have call successors, (385) [2021-11-19 14:15:50,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-19 14:15:50,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:50,271 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 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] [2021-11-19 14:15:50,271 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:50,277 INFO L85 PathProgramCache]: Analyzing trace with hash -385026717, now seen corresponding path program 1 times [2021-11-19 14:15:50,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:50,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021924667] [2021-11-19 14:15:50,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:50,295 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:50,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:50,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:50,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:15:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:51,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:15:51,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:52,187 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-11-19 14:15:52,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-11-19 14:15:52,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:52,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021924667] [2021-11-19 14:15:52,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021924667] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:52,734 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:52,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:15:52,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949601648] [2021-11-19 14:15:52,738 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:52,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:15:52,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:52,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:15:52,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:15:52,788 INFO L87 Difference]: Start difference. First operand has 1507 states, 1037 states have (on average 1.296046287367406) internal successors, (1344), 1058 states have internal predecessors, (1344), 391 states have call successors, (391), 79 states have call predecessors, (391), 78 states have return successors, (385), 379 states have call predecessors, (385), 385 states have call successors, (385) Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 14:15:54,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:15:58,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:58,539 INFO L93 Difference]: Finished difference Result 5837 states and 8318 transitions. [2021-11-19 14:15:58,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:15:58,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 185 [2021-11-19 14:15:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:58,606 INFO L225 Difference]: With dead ends: 5837 [2021-11-19 14:15:58,606 INFO L226 Difference]: Without dead ends: 4226 [2021-11-19 14:15:58,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:15:58,628 INFO L933 BasicCegarLoop]: 2858 mSDtfsCounter, 4081 mSDsluCounter, 5113 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4081 SdHoareTripleChecker+Valid, 7971 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:58,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4081 Valid, 7971 Invalid, 789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 772 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2021-11-19 14:15:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2021-11-19 14:15:58,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 4218. [2021-11-19 14:15:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4218 states, 2952 states have (on average 1.2964092140921408) internal successors, (3827), 3018 states have internal predecessors, (3827), 1041 states have call successors, (1041), 228 states have call predecessors, (1041), 224 states have return successors, (1047), 1013 states have call predecessors, (1047), 1041 states have call successors, (1047) [2021-11-19 14:15:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 5915 transitions. [2021-11-19 14:15:59,036 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 5915 transitions. Word has length 185 [2021-11-19 14:15:59,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:59,038 INFO L470 AbstractCegarLoop]: Abstraction has 4218 states and 5915 transitions. [2021-11-19 14:15:59,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 14:15:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 5915 transitions. [2021-11-19 14:15:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-19 14:15:59,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:59,049 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 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] [2021-11-19 14:15:59,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:59,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:59,275 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:59,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:59,275 INFO L85 PathProgramCache]: Analyzing trace with hash 208038063, now seen corresponding path program 1 times [2021-11-19 14:15:59,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:59,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988757120] [2021-11-19 14:15:59,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:59,278 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:59,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:59,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:59,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:16:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:00,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:00,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2021-11-19 14:16:00,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-11-19 14:16:01,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:01,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988757120] [2021-11-19 14:16:01,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988757120] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:01,404 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:01,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:16:01,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062184619] [2021-11-19 14:16:01,404 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:01,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:16:01,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:01,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:16:01,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:16:01,407 INFO L87 Difference]: Start difference. First operand 4218 states and 5915 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-19 14:16:03,576 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:16:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:04,176 INFO L93 Difference]: Finished difference Result 12172 states and 17072 transitions. [2021-11-19 14:16:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:16:04,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 197 [2021-11-19 14:16:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:04,255 INFO L225 Difference]: With dead ends: 12172 [2021-11-19 14:16:04,255 INFO L226 Difference]: Without dead ends: 7977 [2021-11-19 14:16:04,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 391 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 14:16:04,280 INFO L933 BasicCegarLoop]: 2371 mSDtfsCounter, 1795 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:04,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1795 Valid, 4339 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:16:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7977 states. [2021-11-19 14:16:04,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7977 to 7971. [2021-11-19 14:16:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7971 states, 5553 states have (on average 1.2962362686835944) internal successors, (7198), 5680 states have internal predecessors, (7198), 1979 states have call successors, (1979), 447 states have call predecessors, (1979), 438 states have return successors, (1992), 1918 states have call predecessors, (1992), 1979 states have call successors, (1992) [2021-11-19 14:16:04,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7971 states to 7971 states and 11169 transitions. [2021-11-19 14:16:04,840 INFO L78 Accepts]: Start accepts. Automaton has 7971 states and 11169 transitions. Word has length 197 [2021-11-19 14:16:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:04,841 INFO L470 AbstractCegarLoop]: Abstraction has 7971 states and 11169 transitions. [2021-11-19 14:16:04,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-19 14:16:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 7971 states and 11169 transitions. [2021-11-19 14:16:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-19 14:16:04,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:04,849 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 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] [2021-11-19 14:16:04,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:05,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:05,063 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:05,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:05,063 INFO L85 PathProgramCache]: Analyzing trace with hash -349541086, now seen corresponding path program 1 times [2021-11-19 14:16:05,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:05,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197790486] [2021-11-19 14:16:05,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:05,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:05,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:05,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:05,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:16:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:06,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:06,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2021-11-19 14:16:06,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-11-19 14:16:07,139 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:07,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197790486] [2021-11-19 14:16:07,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197790486] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:07,139 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:07,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:16:07,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274805065] [2021-11-19 14:16:07,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:07,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:16:07,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:07,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:16:07,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:07,142 INFO L87 Difference]: Start difference. First operand 7971 states and 11169 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 14:16:09,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:16:13,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:13,706 INFO L93 Difference]: Finished difference Result 25766 states and 36065 transitions. [2021-11-19 14:16:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:13,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 196 [2021-11-19 14:16:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:13,874 INFO L225 Difference]: With dead ends: 25766 [2021-11-19 14:16:13,875 INFO L226 Difference]: Without dead ends: 17818 [2021-11-19 14:16:13,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:13,928 INFO L933 BasicCegarLoop]: 3268 mSDtfsCounter, 3814 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 380 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3814 SdHoareTripleChecker+Valid, 5969 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:13,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3814 Valid, 5969 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 801 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-19 14:16:13,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17818 states. [2021-11-19 14:16:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17818 to 17802. [2021-11-19 14:16:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17802 states, 12545 states have (on average 1.3033878039059386) internal successors, (16351), 12785 states have internal predecessors, (16351), 4224 states have call successors, (4224), 1050 states have call predecessors, (4224), 1032 states have return successors, (4237), 4118 states have call predecessors, (4237), 4224 states have call successors, (4237) [2021-11-19 14:16:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17802 states to 17802 states and 24812 transitions. [2021-11-19 14:16:15,147 INFO L78 Accepts]: Start accepts. Automaton has 17802 states and 24812 transitions. Word has length 196 [2021-11-19 14:16:15,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:15,148 INFO L470 AbstractCegarLoop]: Abstraction has 17802 states and 24812 transitions. [2021-11-19 14:16:15,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 14:16:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 17802 states and 24812 transitions. [2021-11-19 14:16:15,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-19 14:16:15,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:15,172 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-19 14:16:15,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:15,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:15,395 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:15,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:15,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1314541923, now seen corresponding path program 1 times [2021-11-19 14:16:15,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:15,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841595476] [2021-11-19 14:16:15,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:15,397 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:15,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:15,399 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:15,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:16:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:16,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:16,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2021-11-19 14:16:17,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2021-11-19 14:16:18,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:18,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841595476] [2021-11-19 14:16:18,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841595476] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:18,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:18,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-19 14:16:18,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113069814] [2021-11-19 14:16:18,415 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:18,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:16:18,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:18,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:16:18,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:16:18,417 INFO L87 Difference]: Start difference. First operand 17802 states and 24812 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-19 14:16:20,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:20,144 INFO L93 Difference]: Finished difference Result 53360 states and 75044 transitions. [2021-11-19 14:16:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:16:20,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 293 [2021-11-19 14:16:20,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:20,320 INFO L225 Difference]: With dead ends: 53360 [2021-11-19 14:16:20,320 INFO L226 Difference]: Without dead ends: 35581 [2021-11-19 14:16:20,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 583 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 14:16:20,508 INFO L933 BasicCegarLoop]: 3164 mSDtfsCounter, 1978 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 5126 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:20,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1978 Valid, 5126 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:16:20,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35581 states. [2021-11-19 14:16:22,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35581 to 35579. [2021-11-19 14:16:22,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35579 states, 25075 states have (on average 1.2914855433698904) internal successors, (32384), 25555 states have internal predecessors, (32384), 8439 states have call successors, (8439), 2100 states have call predecessors, (8439), 2064 states have return successors, (8740), 8227 states have call predecessors, (8740), 8439 states have call successors, (8740) [2021-11-19 14:16:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35579 states to 35579 states and 49563 transitions. [2021-11-19 14:16:22,639 INFO L78 Accepts]: Start accepts. Automaton has 35579 states and 49563 transitions. Word has length 293 [2021-11-19 14:16:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:22,641 INFO L470 AbstractCegarLoop]: Abstraction has 35579 states and 49563 transitions. [2021-11-19 14:16:22,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-19 14:16:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 35579 states and 49563 transitions. [2021-11-19 14:16:22,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-19 14:16:22,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:22,664 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-19 14:16:22,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:22,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:22,879 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:22,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:22,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1224481633, now seen corresponding path program 1 times [2021-11-19 14:16:22,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:22,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627782109] [2021-11-19 14:16:22,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:22,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:22,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:22,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:22,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:16:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:24,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:24,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:25,037 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2021-11-19 14:16:25,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:25,737 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2021-11-19 14:16:25,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:25,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627782109] [2021-11-19 14:16:25,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627782109] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:25,738 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:25,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-19 14:16:25,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942713422] [2021-11-19 14:16:25,739 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:25,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:16:25,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:25,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:16:25,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:16:25,741 INFO L87 Difference]: Start difference. First operand 35579 states and 49563 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-19 14:16:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:26,787 INFO L93 Difference]: Finished difference Result 53358 states and 74040 transitions. [2021-11-19 14:16:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:16:26,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 293 [2021-11-19 14:16:26,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:26,869 INFO L225 Difference]: With dead ends: 53358 [2021-11-19 14:16:26,869 INFO L226 Difference]: Without dead ends: 17802 [2021-11-19 14:16:26,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 583 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 14:16:26,981 INFO L933 BasicCegarLoop]: 2015 mSDtfsCounter, 1957 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:26,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1957 Valid, 2015 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:27,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17802 states. [2021-11-19 14:16:28,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17802 to 17802. [2021-11-19 14:16:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17802 states, 12545 states have (on average 1.277799920286967) internal successors, (16030), 12785 states have internal predecessors, (16030), 4224 states have call successors, (4224), 1050 states have call predecessors, (4224), 1032 states have return successors, (4237), 4118 states have call predecessors, (4237), 4224 states have call successors, (4237) [2021-11-19 14:16:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17802 states to 17802 states and 24491 transitions. [2021-11-19 14:16:28,292 INFO L78 Accepts]: Start accepts. Automaton has 17802 states and 24491 transitions. Word has length 293 [2021-11-19 14:16:28,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:28,293 INFO L470 AbstractCegarLoop]: Abstraction has 17802 states and 24491 transitions. [2021-11-19 14:16:28,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-19 14:16:28,294 INFO L276 IsEmpty]: Start isEmpty. Operand 17802 states and 24491 transitions. [2021-11-19 14:16:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-19 14:16:28,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:28,308 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-19 14:16:28,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:28,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:28,523 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:28,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:28,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1914313123, now seen corresponding path program 1 times [2021-11-19 14:16:28,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:28,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554366865] [2021-11-19 14:16:28,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:28,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:28,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:28,526 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:28,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:16:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:29,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:29,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:30,527 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2021-11-19 14:16:30,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2021-11-19 14:16:31,253 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:31,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554366865] [2021-11-19 14:16:31,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554366865] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:31,254 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:31,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-19 14:16:31,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46953813] [2021-11-19 14:16:31,254 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:31,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:16:31,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:31,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:16:31,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:16:31,257 INFO L87 Difference]: Start difference. First operand 17802 states and 24491 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-19 14:16:32,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:32,197 INFO L93 Difference]: Finished difference Result 35581 states and 48950 transitions. [2021-11-19 14:16:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:16:32,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 293 [2021-11-19 14:16:32,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:32,264 INFO L225 Difference]: With dead ends: 35581 [2021-11-19 14:16:32,264 INFO L226 Difference]: Without dead ends: 17802 [2021-11-19 14:16:32,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 583 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 14:16:32,313 INFO L933 BasicCegarLoop]: 2014 mSDtfsCounter, 1955 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:32,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1955 Valid, 2014 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17802 states. [2021-11-19 14:16:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17802 to 17802. [2021-11-19 14:16:33,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17802 states, 12545 states have (on average 1.2763650856915105) internal successors, (16012), 12785 states have internal predecessors, (16012), 4224 states have call successors, (4224), 1050 states have call predecessors, (4224), 1032 states have return successors, (4237), 4118 states have call predecessors, (4237), 4224 states have call successors, (4237) [2021-11-19 14:16:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17802 states to 17802 states and 24473 transitions. [2021-11-19 14:16:33,299 INFO L78 Accepts]: Start accepts. Automaton has 17802 states and 24473 transitions. Word has length 293 [2021-11-19 14:16:33,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:33,300 INFO L470 AbstractCegarLoop]: Abstraction has 17802 states and 24473 transitions. [2021-11-19 14:16:33,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-19 14:16:33,300 INFO L276 IsEmpty]: Start isEmpty. Operand 17802 states and 24473 transitions. [2021-11-19 14:16:33,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-19 14:16:33,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:33,314 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-19 14:16:33,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:33,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:33,531 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:33,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash 972928223, now seen corresponding path program 1 times [2021-11-19 14:16:33,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:33,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793958155] [2021-11-19 14:16:33,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:33,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:33,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:33,535 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:33,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:16:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:34,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:34,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2021-11-19 14:16:35,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2021-11-19 14:16:36,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:36,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793958155] [2021-11-19 14:16:36,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793958155] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:36,550 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:36,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:16:36,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085318640] [2021-11-19 14:16:36,550 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:36,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:16:36,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:36,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:16:36,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:36,553 INFO L87 Difference]: Start difference. First operand 17802 states and 24473 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 4 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-19 14:16:37,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:37,415 INFO L93 Difference]: Finished difference Result 35563 states and 48896 transitions. [2021-11-19 14:16:37,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:16:37,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 4 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) Word has length 293 [2021-11-19 14:16:37,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:37,497 INFO L225 Difference]: With dead ends: 35563 [2021-11-19 14:16:37,497 INFO L226 Difference]: Without dead ends: 17784 [2021-11-19 14:16:37,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:37,559 INFO L933 BasicCegarLoop]: 2006 mSDtfsCounter, 1958 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:37,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1958 Valid, 2006 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:37,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17784 states. [2021-11-19 14:16:38,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17784 to 17784. [2021-11-19 14:16:38,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17784 states, 12527 states have (on average 1.2710146084457572) internal successors, (15922), 12767 states have internal predecessors, (15922), 4224 states have call successors, (4224), 1050 states have call predecessors, (4224), 1032 states have return successors, (4237), 4118 states have call predecessors, (4237), 4224 states have call successors, (4237) [2021-11-19 14:16:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17784 states to 17784 states and 24383 transitions. [2021-11-19 14:16:38,775 INFO L78 Accepts]: Start accepts. Automaton has 17784 states and 24383 transitions. Word has length 293 [2021-11-19 14:16:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:38,776 INFO L470 AbstractCegarLoop]: Abstraction has 17784 states and 24383 transitions. [2021-11-19 14:16:38,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 4 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2021-11-19 14:16:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 17784 states and 24383 transitions. [2021-11-19 14:16:38,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-19 14:16:38,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:38,789 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-19 14:16:38,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:39,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:39,003 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:39,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:39,003 INFO L85 PathProgramCache]: Analyzing trace with hash -618240793, now seen corresponding path program 1 times [2021-11-19 14:16:39,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:39,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245367334] [2021-11-19 14:16:39,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:39,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:39,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:39,006 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:39,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:16:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:40,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:40,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2021-11-19 14:16:40,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2021-11-19 14:16:41,491 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:41,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245367334] [2021-11-19 14:16:41,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245367334] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:41,492 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:41,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:16:41,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762366915] [2021-11-19 14:16:41,492 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:41,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:16:41,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:41,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:16:41,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:41,494 INFO L87 Difference]: Start difference. First operand 17784 states and 24383 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-19 14:16:43,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:16:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:47,550 INFO L93 Difference]: Finished difference Result 47230 states and 64616 transitions. [2021-11-19 14:16:47,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:47,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) Word has length 296 [2021-11-19 14:16:47,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:47,678 INFO L225 Difference]: With dead ends: 47230 [2021-11-19 14:16:47,678 INFO L226 Difference]: Without dead ends: 29469 [2021-11-19 14:16:47,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:47,742 INFO L933 BasicCegarLoop]: 3474 mSDtfsCounter, 3230 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 6210 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:47,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3230 Valid, 6210 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 821 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-19 14:16:47,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29469 states. [2021-11-19 14:16:49,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29469 to 29453. [2021-11-19 14:16:49,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29453 states, 20770 states have (on average 1.2729898892633607) internal successors, (26440), 21142 states have internal predecessors, (26440), 6854 states have call successors, (6854), 1846 states have call predecessors, (6854), 1828 states have return successors, (6867), 6706 states have call predecessors, (6867), 6854 states have call successors, (6867) [2021-11-19 14:16:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29453 states to 29453 states and 40161 transitions. [2021-11-19 14:16:49,797 INFO L78 Accepts]: Start accepts. Automaton has 29453 states and 40161 transitions. Word has length 296 [2021-11-19 14:16:49,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:49,798 INFO L470 AbstractCegarLoop]: Abstraction has 29453 states and 40161 transitions. [2021-11-19 14:16:49,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 4 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2021-11-19 14:16:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 29453 states and 40161 transitions. [2021-11-19 14:16:49,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-11-19 14:16:49,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:49,816 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:49,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:50,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:50,039 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1470078584, now seen corresponding path program 1 times [2021-11-19 14:16:50,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:50,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977988103] [2021-11-19 14:16:50,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:50,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:50,044 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:50,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:16:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:51,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:51,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-19 14:16:52,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2021-11-19 14:16:53,409 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:53,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977988103] [2021-11-19 14:16:53,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977988103] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:53,410 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:53,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:16:53,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174793945] [2021-11-19 14:16:53,410 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:53,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:16:53,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:53,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:16:53,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:53,412 INFO L87 Difference]: Start difference. First operand 29453 states and 40161 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 4 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (96), 4 states have call predecessors, (96), 4 states have call successors, (96) [2021-11-19 14:16:55,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:00,883 INFO L93 Difference]: Finished difference Result 96597 states and 130378 transitions. [2021-11-19 14:17:00,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:00,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 4 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (96), 4 states have call predecessors, (96), 4 states have call successors, (96) Word has length 401 [2021-11-19 14:17:00,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:01,160 INFO L225 Difference]: With dead ends: 96597 [2021-11-19 14:17:01,160 INFO L226 Difference]: Without dead ends: 67167 [2021-11-19 14:17:01,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:01,272 INFO L933 BasicCegarLoop]: 2876 mSDtfsCounter, 4647 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 666 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4647 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:01,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4647 Valid, 5904 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 650 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-11-19 14:17:01,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67167 states. [2021-11-19 14:17:04,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67167 to 67079. [2021-11-19 14:17:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67079 states, 47956 states have (on average 1.2624906163983651) internal successors, (60544), 48896 states have internal predecessors, (60544), 14744 states have call successors, (14744), 4444 states have call predecessors, (14744), 4378 states have return successors, (14785), 14282 states have call predecessors, (14785), 14744 states have call successors, (14785) [2021-11-19 14:17:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67079 states to 67079 states and 90073 transitions. [2021-11-19 14:17:05,238 INFO L78 Accepts]: Start accepts. Automaton has 67079 states and 90073 transitions. Word has length 401 [2021-11-19 14:17:05,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:05,239 INFO L470 AbstractCegarLoop]: Abstraction has 67079 states and 90073 transitions. [2021-11-19 14:17:05,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 4 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (96), 4 states have call predecessors, (96), 4 states have call successors, (96) [2021-11-19 14:17:05,239 INFO L276 IsEmpty]: Start isEmpty. Operand 67079 states and 90073 transitions. [2021-11-19 14:17:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-11-19 14:17:05,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:05,255 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:05,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-19 14:17:05,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:05,456 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:05,456 INFO L85 PathProgramCache]: Analyzing trace with hash -694936784, now seen corresponding path program 1 times [2021-11-19 14:17:05,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:05,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136326994] [2021-11-19 14:17:05,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:05,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:05,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:05,459 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:05,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:17:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:06,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:06,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-19 14:17:07,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2021-11-19 14:17:08,343 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:08,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136326994] [2021-11-19 14:17:08,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136326994] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:08,344 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:08,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:17:08,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675140378] [2021-11-19 14:17:08,344 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:08,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:17:08,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:08,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:17:08,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:08,345 INFO L87 Difference]: Start difference. First operand 67079 states and 90073 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2021-11-19 14:17:10,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:17:17,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:17,983 INFO L93 Difference]: Finished difference Result 153747 states and 206500 transitions. [2021-11-19 14:17:17,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:17,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) Word has length 375 [2021-11-19 14:17:17,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:18,331 INFO L225 Difference]: With dead ends: 153747 [2021-11-19 14:17:18,331 INFO L226 Difference]: Without dead ends: 86691 [2021-11-19 14:17:18,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 746 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:18,495 INFO L933 BasicCegarLoop]: 3510 mSDtfsCounter, 3245 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 254 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3245 SdHoareTripleChecker+Valid, 6035 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:18,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3245 Valid, 6035 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 818 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-19 14:17:18,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86691 states. [2021-11-19 14:17:23,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86691 to 86651. [2021-11-19 14:17:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86651 states, 62302 states have (on average 1.2646785014927289) internal successors, (78792), 63494 states have internal predecessors, (78792), 18704 states have call successors, (18704), 5710 states have call predecessors, (18704), 5644 states have return successors, (18745), 18134 states have call predecessors, (18745), 18704 states have call successors, (18745) [2021-11-19 14:17:23,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86651 states to 86651 states and 116241 transitions. [2021-11-19 14:17:23,821 INFO L78 Accepts]: Start accepts. Automaton has 86651 states and 116241 transitions. Word has length 375 [2021-11-19 14:17:23,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:23,823 INFO L470 AbstractCegarLoop]: Abstraction has 86651 states and 116241 transitions. [2021-11-19 14:17:23,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 4 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2021-11-19 14:17:23,823 INFO L276 IsEmpty]: Start isEmpty. Operand 86651 states and 116241 transitions. [2021-11-19 14:17:23,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-19 14:17:23,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:23,855 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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, 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 14:17:23,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:24,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:24,079 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:24,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash 102630176, now seen corresponding path program 1 times [2021-11-19 14:17:24,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:24,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203726785] [2021-11-19 14:17:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:24,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:24,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:24,082 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:24,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f50b5f-26ee-4407-a6bf-612cf7e2c85a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:17:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:25,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:25,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2021-11-19 14:17:26,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2021-11-19 14:17:26,887 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:26,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203726785] [2021-11-19 14:17:26,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203726785] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:26,887 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:26,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:17:26,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848534712] [2021-11-19 14:17:26,888 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:26,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:17:26,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:26,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:17:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:17:26,890 INFO L87 Difference]: Start difference. First operand 86651 states and 116241 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 4 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-19 14:17:28,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []