./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.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_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/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_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/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_4cbedff6-6f06-4637-b5db-2724c3e03af3/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 3151b52776d19e2fb44a194d473cc3c38f1eb2b68210144e38eb8a78a9b4d4f9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:41:01,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:41:01,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:41:02,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:41:02,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:41:02,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:41:02,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:41:02,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:41:02,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:41:02,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:41:02,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:41:02,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:41:02,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:41:02,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:41:02,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:41:02,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:41:02,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:41:02,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:41:02,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:41:02,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:41:02,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:41:02,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:41:02,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:41:02,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:41:02,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:41:02,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:41:02,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:41:02,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:41:02,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:41:02,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:41:02,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:41:02,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:41:02,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:41:02,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:41:02,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:41:02,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:41:02,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:41:02,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:41:02,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:41:02,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:41:02,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:41:02,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:41:02,153 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:41:02,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:41:02,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:41:02,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:41:02,155 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:41:02,155 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:41:02,156 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:41:02,156 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:41:02,162 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:41:02,163 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:41:02,164 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:41:02,164 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:41:02,164 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:41:02,165 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:41:02,165 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:41:02,165 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:41:02,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:41:02,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:41:02,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:41:02,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:41:02,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:41:02,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:41:02,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:41:02,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:41:02,168 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:41:02,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:41:02,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:41:02,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:41:02,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:41:02,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:41:02,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:41:02,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:41:02,171 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:41:02,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:41:02,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:41:02,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:41:02,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:41:02,172 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3151b52776d19e2fb44a194d473cc3c38f1eb2b68210144e38eb8a78a9b4d4f9 [2021-11-19 14:41:02,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:41:02,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:41:02,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:41:02,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:41:02,482 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:41:02,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:41:02,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data/f69f378da/334b353164e44c7db7f7df231da8dbf5/FLAG013f8c7b5 [2021-11-19 14:41:03,717 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:41:03,719 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:41:03,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data/f69f378da/334b353164e44c7db7f7df231da8dbf5/FLAG013f8c7b5 [2021-11-19 14:41:03,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data/f69f378da/334b353164e44c7db7f7df231da8dbf5 [2021-11-19 14:41:03,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:41:03,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:41:03,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:41:03,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:41:03,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:41:03,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:41:03" (1/1) ... [2021-11-19 14:41:03,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361ccde4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:03, skipping insertion in model container [2021-11-19 14:41:03,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:41:03" (1/1) ... [2021-11-19 14:41:03,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:41:04,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:41:06,404 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 14:41:06,658 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 14:41:06,713 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 14:41:06,720 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 14:41:06,721 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 14:41:06,722 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 14:41:06,724 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 14:41:06,800 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 14:41:06,807 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 14:41:07,556 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373299,373312] [2021-11-19 14:41:07,559 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373446,373459] [2021-11-19 14:41:07,560 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373585,373598] [2021-11-19 14:41:07,561 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373743,373756] [2021-11-19 14:41:07,612 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:41:07,675 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 14:41:07,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e7a4015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:07, skipping insertion in model container [2021-11-19 14:41:07,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:41:07,676 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:41:07,679 INFO L158 Benchmark]: Toolchain (without parser) took 3733.64ms. Allocated memory was 98.6MB in the beginning and 138.4MB in the end (delta: 39.8MB). Free memory was 63.6MB in the beginning and 80.1MB in the end (delta: -16.4MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2021-11-19 14:41:07,679 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 77.6MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:41:07,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3730.86ms. Allocated memory was 98.6MB in the beginning and 138.4MB in the end (delta: 39.8MB). Free memory was 63.2MB in the beginning and 80.1MB in the end (delta: -16.8MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2021-11-19 14:41:07,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 77.6MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3730.86ms. Allocated memory was 98.6MB in the beginning and 138.4MB in the end (delta: 39.8MB). Free memory was 63.2MB in the beginning and 80.1MB in the end (delta: -16.8MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6734]: 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/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_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/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_4cbedff6-6f06-4637-b5db-2724c3e03af3/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 3151b52776d19e2fb44a194d473cc3c38f1eb2b68210144e38eb8a78a9b4d4f9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:41:10,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:41:10,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:41:10,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:41:10,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:41:10,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:41:10,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:41:10,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:41:10,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:41:10,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:41:10,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:41:10,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:41:10,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:41:10,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:41:10,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:41:10,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:41:10,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:41:10,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:41:10,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:41:10,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:41:10,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:41:10,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:41:10,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:41:10,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:41:10,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:41:10,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:41:10,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:41:10,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:41:10,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:41:10,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:41:10,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:41:10,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:41:10,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:41:10,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:41:10,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:41:10,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:41:10,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:41:10,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:41:10,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:41:10,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:41:10,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:41:10,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:41:10,198 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:41:10,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:41:10,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:41:10,200 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:41:10,200 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:41:10,200 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:41:10,201 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:41:10,201 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:41:10,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:41:10,201 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:41:10,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:41:10,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:41:10,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:41:10,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:41:10,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:41:10,203 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:41:10,203 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:41:10,204 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:41:10,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:41:10,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:41:10,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:41:10,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:41:10,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:41:10,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:41:10,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:41:10,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:41:10,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:41:10,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:41:10,206 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:41:10,207 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:41:10,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:41:10,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:41:10,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:41:10,207 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3151b52776d19e2fb44a194d473cc3c38f1eb2b68210144e38eb8a78a9b4d4f9 [2021-11-19 14:41:10,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:41:10,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:41:10,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:41:10,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:41:10,708 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:41:10,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:41:10,796 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data/b7086177e/27032b22c79743e195b9273aea1213e7/FLAGdb56f6975 [2021-11-19 14:41:12,015 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:41:12,016 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:41:12,088 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data/b7086177e/27032b22c79743e195b9273aea1213e7/FLAGdb56f6975 [2021-11-19 14:41:12,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/data/b7086177e/27032b22c79743e195b9273aea1213e7 [2021-11-19 14:41:12,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:41:12,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:41:12,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:41:12,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:41:12,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:41:12,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:41:12" (1/1) ... [2021-11-19 14:41:12,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dab8792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:12, skipping insertion in model container [2021-11-19 14:41:12,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:41:12" (1/1) ... [2021-11-19 14:41:12,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:41:12,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:41:16,187 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373299,373312] [2021-11-19 14:41:16,190 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373446,373459] [2021-11-19 14:41:16,190 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373585,373598] [2021-11-19 14:41:16,191 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373743,373756] [2021-11-19 14:41:16,224 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:41:16,302 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:41:16,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:41:16,799 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373299,373312] [2021-11-19 14:41:16,799 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373446,373459] [2021-11-19 14:41:16,800 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373585,373598] [2021-11-19 14:41:16,800 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373743,373756] [2021-11-19 14:41:16,809 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:41:16,890 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:41:17,484 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373299,373312] [2021-11-19 14:41:17,485 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373446,373459] [2021-11-19 14:41:17,486 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373585,373598] [2021-11-19 14:41:17,490 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_4cbedff6-6f06-4637-b5db-2724c3e03af3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373743,373756] [2021-11-19 14:41:17,502 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:41:17,789 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:41:17,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17 WrapperNode [2021-11-19 14:41:17,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:41:17,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:41:17,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:41:17,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:41:17,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:17,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,212 INFO L137 Inliner]: procedures = 483, calls = 2629, calls flagged for inlining = 277, calls inlined = 249, statements flattened = 5625 [2021-11-19 14:41:18,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:41:18,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:41:18,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:41:18,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:41:18,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:41:18,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:41:18,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:41:18,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:41:18,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (1/1) ... [2021-11-19 14:41:18,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:41:18,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:41:18,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:41:18,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:41:18,663 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:41:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:41:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:41:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:41:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 14:41:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 14:41:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:41:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:41:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:41:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:41:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:41:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:41:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2021-11-19 14:41:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2021-11-19 14:41:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 14:41:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 14:41:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:41:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:41:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 14:41:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 14:41:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:41:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:41:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-19 14:41:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-19 14:41:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2021-11-19 14:41:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2021-11-19 14:41:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-19 14:41:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-19 14:41:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:41:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:41:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:41:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:41:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2021-11-19 14:41:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2021-11-19 14:41:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:41:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:41:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:41:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:41:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:41:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:41:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 14:41:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 14:41:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:41:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:41:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:41:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:41:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:41:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:41:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:41:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:41:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:41:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:41:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 14:41:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 14:41:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2021-11-19 14:41:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2021-11-19 14:41:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:41:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:41:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:41:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:41:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-19 14:41:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-19 14:41:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2021-11-19 14:41:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2021-11-19 14:41:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:41:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:41:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:41:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:41:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2021-11-19 14:41:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2021-11-19 14:41:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:41:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:41:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:41:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:41:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:41:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:41:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2021-11-19 14:41:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2021-11-19 14:41:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-19 14:41:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-19 14:41:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:41:18,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:41:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:41:18,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:41:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2021-11-19 14:41:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2021-11-19 14:41:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2021-11-19 14:41:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2021-11-19 14:41:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:41:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:41:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:41:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:41:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:41:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 14:41:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 14:41:18,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-19 14:41:18,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-19 14:41:18,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:41:18,686 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-19 14:41:18,687 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-19 14:41:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:41:18,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:41:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:41:18,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:41:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:41:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:41:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-19 14:41:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-19 14:41:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:41:18,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:41:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-19 14:41:18,692 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-19 14:41:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2021-11-19 14:41:18,692 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2021-11-19 14:41:18,693 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2021-11-19 14:41:18,693 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2021-11-19 14:41:18,693 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-19 14:41:18,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-19 14:41:18,693 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 14:41:18,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 14:41:18,694 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-19 14:41:18,694 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-19 14:41:18,694 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:41:18,694 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:41:18,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:41:18,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:41:18,695 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-19 14:41:18,695 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-19 14:41:18,695 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:41:18,695 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:41:18,696 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2021-11-19 14:41:18,696 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2021-11-19 14:41:18,696 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2021-11-19 14:41:18,696 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2021-11-19 14:41:18,696 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-19 14:41:18,696 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-19 14:41:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:41:18,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:41:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-19 14:41:18,697 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-19 14:41:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:41:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:41:18,698 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:41:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:41:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:41:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:41:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:41:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:41:18,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:41:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-19 14:41:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2021-11-19 14:41:18,699 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2021-11-19 14:41:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:41:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:41:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:41:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:41:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:41:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:41:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2021-11-19 14:41:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2021-11-19 14:41:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-11-19 14:41:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-11-19 14:41:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:41:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:41:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2021-11-19 14:41:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2021-11-19 14:41:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-19 14:41:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-19 14:41:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:41:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2021-11-19 14:41:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2021-11-19 14:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:41:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:41:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:41:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-19 14:41:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-19 14:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:41:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2021-11-19 14:41:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2021-11-19 14:41:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-11-19 14:41:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-11-19 14:41:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:41:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:41:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:41:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:41:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:41:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2021-11-19 14:41:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2021-11-19 14:41:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2021-11-19 14:41:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2021-11-19 14:41:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-19 14:41:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-19 14:41:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2021-11-19 14:41:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2021-11-19 14:41:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2021-11-19 14:41:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2021-11-19 14:41:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 14:41:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 14:41:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 14:41:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 14:41:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:41:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:41:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-19 14:41:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-19 14:41:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:41:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:41:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 14:41:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 14:41:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 14:41:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 14:41:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:41:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:41:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:41:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:41:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2021-11-19 14:41:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2021-11-19 14:41:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:41:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:41:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2021-11-19 14:41:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2021-11-19 14:41:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:41:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:41:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2021-11-19 14:41:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2021-11-19 14:41:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:41:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-19 14:41:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-19 14:41:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:41:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:41:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-19 14:41:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-19 14:41:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:41:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:41:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2021-11-19 14:41:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2021-11-19 14:41:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2021-11-19 14:41:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2021-11-19 14:41:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2021-11-19 14:41:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2021-11-19 14:41:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2021-11-19 14:41:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2021-11-19 14:41:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-19 14:41:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-19 14:41:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:41:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:41:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:41:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:41:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 14:41:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 14:41:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2021-11-19 14:41:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2021-11-19 14:41:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2021-11-19 14:41:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2021-11-19 14:41:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:41:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:41:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-19 14:41:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-19 14:41:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2021-11-19 14:41:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2021-11-19 14:41:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2021-11-19 14:41:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2021-11-19 14:41:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:41:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:41:19,754 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:41:19,762 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:41:20,910 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:52:54,711 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:52:54,829 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:52:54,853 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:52:54,853 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 14:52:54,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:54 BoogieIcfgContainer [2021-11-19 14:52:54,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:52:54,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:52:54,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:52:54,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:52:54,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:41:12" (1/3) ... [2021-11-19 14:52:54,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2378bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:52:54, skipping insertion in model container [2021-11-19 14:52:54,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:41:17" (2/3) ... [2021-11-19 14:52:54,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2378bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:52:54, skipping insertion in model container [2021-11-19 14:52:54,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:54" (3/3) ... [2021-11-19 14:52:54,871 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-19 14:52:54,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:52:54,879 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 14:52:54,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:52:54,961 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 14:52:54,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 14:52:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 2201 states, 1501 states have (on average 1.2771485676215857) internal successors, (1917), 1549 states have internal predecessors, (1917), 578 states have call successors, (578), 122 states have call predecessors, (578), 121 states have return successors, (569), 556 states have call predecessors, (569), 569 states have call successors, (569) [2021-11-19 14:52:55,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-19 14:52:55,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:52:55,066 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:52:55,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:52:55,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:52:55,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1326805439, now seen corresponding path program 1 times [2021-11-19 14:52:55,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:52:55,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373699139] [2021-11-19 14:52:55,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:52:55,105 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:52:55,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:52:55,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:52:55,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:52:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:52:58,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 2241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:52:58,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:52:59,193 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-19 14:52:59,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:52:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-19 14:52:59,757 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:52:59,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373699139] [2021-11-19 14:52:59,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373699139] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:52:59,762 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:52:59,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:52:59,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681056714] [2021-11-19 14:52:59,771 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:52:59,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:52:59,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:52:59,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:52:59,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:52:59,832 INFO L87 Difference]: Start difference. First operand has 2201 states, 1501 states have (on average 1.2771485676215857) internal successors, (1917), 1549 states have internal predecessors, (1917), 578 states have call successors, (578), 122 states have call predecessors, (578), 121 states have return successors, (569), 556 states have call predecessors, (569), 569 states have call successors, (569) Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:53:02,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:53:09,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:53:09,685 INFO L93 Difference]: Finished difference Result 8449 states and 11950 transitions. [2021-11-19 14:53:09,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:53:09,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 183 [2021-11-19 14:53:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:53:09,783 INFO L225 Difference]: With dead ends: 8449 [2021-11-19 14:53:09,783 INFO L226 Difference]: Without dead ends: 6256 [2021-11-19 14:53:09,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 362 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 14:53:09,815 INFO L933 BasicCegarLoop]: 4082 mSDtfsCounter, 5795 mSDsluCounter, 7476 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5795 SdHoareTripleChecker+Valid, 11558 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:53:09,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5795 Valid, 11558 Invalid, 1219 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 1192 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-19 14:53:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2021-11-19 14:53:10,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 6248. [2021-11-19 14:53:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6248 states, 4256 states have (on average 1.2636278195488722) internal successors, (5378), 4394 states have internal predecessors, (5378), 1632 states have call successors, (1632), 359 states have call predecessors, (1632), 358 states have return successors, (1629), 1590 states have call predecessors, (1629), 1629 states have call successors, (1629) [2021-11-19 14:53:10,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6248 states to 6248 states and 8639 transitions. [2021-11-19 14:53:10,429 INFO L78 Accepts]: Start accepts. Automaton has 6248 states and 8639 transitions. Word has length 183 [2021-11-19 14:53:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:53:10,431 INFO L470 AbstractCegarLoop]: Abstraction has 6248 states and 8639 transitions. [2021-11-19 14:53:10,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 14:53:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 6248 states and 8639 transitions. [2021-11-19 14:53:10,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-19 14:53:10,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:10,445 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:53:10,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:53:10,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:53:10,661 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:53:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:10,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1835195274, now seen corresponding path program 1 times [2021-11-19 14:53:10,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:53:10,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965031105] [2021-11-19 14:53:10,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:10,667 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:53:10,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:53:10,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:53:10,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:53:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:14,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 2328 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:53:14,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:53:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-19 14:53:15,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:53:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-19 14:53:15,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:53:15,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965031105] [2021-11-19 14:53:15,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965031105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:53:15,738 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:53:15,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:53:15,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366050144] [2021-11-19 14:53:15,751 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:53:15,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:53:15,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:53:15,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:53:15,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:53:15,758 INFO L87 Difference]: Start difference. First operand 6248 states and 8639 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-19 14:53:18,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:53:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:53:24,746 INFO L93 Difference]: Finished difference Result 19327 states and 26628 transitions. [2021-11-19 14:53:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:53:24,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 204 [2021-11-19 14:53:24,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:53:25,061 INFO L225 Difference]: With dead ends: 19327 [2021-11-19 14:53:25,061 INFO L226 Difference]: Without dead ends: 13112 [2021-11-19 14:53:25,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 404 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 14:53:25,106 INFO L933 BasicCegarLoop]: 3944 mSDtfsCounter, 5073 mSDsluCounter, 5245 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 9189 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:53:25,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5073 Valid, 9189 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1104 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-19 14:53:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13112 states. [2021-11-19 14:53:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13112 to 13094. [2021-11-19 14:53:25,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13094 states, 8922 states have (on average 1.2592468056489576) internal successors, (11235), 9208 states have internal predecessors, (11235), 3370 states have call successors, (3370), 803 states have call predecessors, (3370), 800 states have return successors, (3367), 3271 states have call predecessors, (3367), 3367 states have call successors, (3367) [2021-11-19 14:53:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13094 states to 13094 states and 17972 transitions. [2021-11-19 14:53:26,070 INFO L78 Accepts]: Start accepts. Automaton has 13094 states and 17972 transitions. Word has length 204 [2021-11-19 14:53:26,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:53:26,071 INFO L470 AbstractCegarLoop]: Abstraction has 13094 states and 17972 transitions. [2021-11-19 14:53:26,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-19 14:53:26,073 INFO L276 IsEmpty]: Start isEmpty. Operand 13094 states and 17972 transitions. [2021-11-19 14:53:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-19 14:53:26,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:26,087 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:53:26,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:53:26,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:53:26,301 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:53:26,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:26,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1603314900, now seen corresponding path program 1 times [2021-11-19 14:53:26,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:53:26,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738415722] [2021-11-19 14:53:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:26,308 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:53:26,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:53:26,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:53:26,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:53:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:29,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 2302 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:53:30,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:53:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-19 14:53:30,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:53:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2021-11-19 14:53:31,076 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:53:31,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738415722] [2021-11-19 14:53:31,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738415722] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:53:31,077 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:53:31,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:53:31,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966858697] [2021-11-19 14:53:31,077 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:53:31,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:53:31,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:53:31,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:53:31,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:53:31,079 INFO L87 Difference]: Start difference. First operand 13094 states and 17972 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-19 14:53:33,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:53:34,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:53:34,855 INFO L93 Difference]: Finished difference Result 36923 states and 50685 transitions. [2021-11-19 14:53:34,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:53:34,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 215 [2021-11-19 14:53:34,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:53:35,078 INFO L225 Difference]: With dead ends: 36923 [2021-11-19 14:53:35,078 INFO L226 Difference]: Without dead ends: 23862 [2021-11-19 14:53:35,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 427 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 14:53:35,162 INFO L933 BasicCegarLoop]: 3517 mSDtfsCounter, 2804 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 6450 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:53:35,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2804 Valid, 6450 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 14:53:35,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23862 states. [2021-11-19 14:53:36,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23862 to 23847. [2021-11-19 14:53:36,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23847 states, 16258 states have (on average 1.25698117849674) internal successors, (20436), 16799 states have internal predecessors, (20436), 6122 states have call successors, (6122), 1470 states have call predecessors, (6122), 1465 states have return successors, (6119), 5930 states have call predecessors, (6119), 6119 states have call successors, (6119) [2021-11-19 14:53:36,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23847 states to 23847 states and 32677 transitions. [2021-11-19 14:53:36,858 INFO L78 Accepts]: Start accepts. Automaton has 23847 states and 32677 transitions. Word has length 215 [2021-11-19 14:53:36,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:53:36,860 INFO L470 AbstractCegarLoop]: Abstraction has 23847 states and 32677 transitions. [2021-11-19 14:53:36,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-19 14:53:36,861 INFO L276 IsEmpty]: Start isEmpty. Operand 23847 states and 32677 transitions. [2021-11-19 14:53:36,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-19 14:53:36,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:36,878 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 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] [2021-11-19 14:53:36,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:53:37,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:53:37,093 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:53:37,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:37,094 INFO L85 PathProgramCache]: Analyzing trace with hash -132170973, now seen corresponding path program 1 times [2021-11-19 14:53:37,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:53:37,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043016237] [2021-11-19 14:53:37,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:37,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:53:37,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:53:37,102 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:53:37,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:53:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:40,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:53:40,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:53:42,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-11-19 14:53:42,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:53:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-11-19 14:53:43,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:53:43,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043016237] [2021-11-19 14:53:43,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043016237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:53:43,499 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:53:43,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 14:53:43,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762610555] [2021-11-19 14:53:43,500 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:53:43,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:53:43,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:53:43,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:53:43,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:53:43,502 INFO L87 Difference]: Start difference. First operand 23847 states and 32677 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:53:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:53:45,158 INFO L93 Difference]: Finished difference Result 23847 states and 32677 transitions. [2021-11-19 14:53:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:53:45,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 244 [2021-11-19 14:53:45,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:53:45,314 INFO L225 Difference]: With dead ends: 23847 [2021-11-19 14:53:45,314 INFO L226 Difference]: Without dead ends: 23776 [2021-11-19 14:53:45,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:53:45,336 INFO L933 BasicCegarLoop]: 2974 mSDtfsCounter, 2868 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 5948 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:53:45,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2868 Valid, 5948 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:53:45,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23776 states. [2021-11-19 14:53:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23776 to 23722. [2021-11-19 14:53:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23722 states, 16175 states have (on average 1.2545904173106646) internal successors, (20293), 16698 states have internal predecessors, (20293), 6083 states have call successors, (6083), 1463 states have call predecessors, (6083), 1463 states have return successors, (6083), 5913 states have call predecessors, (6083), 6083 states have call successors, (6083) [2021-11-19 14:53:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23722 states to 23722 states and 32459 transitions. [2021-11-19 14:53:46,927 INFO L78 Accepts]: Start accepts. Automaton has 23722 states and 32459 transitions. Word has length 244 [2021-11-19 14:53:46,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:53:46,928 INFO L470 AbstractCegarLoop]: Abstraction has 23722 states and 32459 transitions. [2021-11-19 14:53:46,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:53:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 23722 states and 32459 transitions. [2021-11-19 14:53:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-19 14:53:47,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:47,010 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 14, 14, 14, 14, 14, 14, 5, 5, 5, 3, 3, 3, 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] [2021-11-19 14:53:47,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:53:47,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:53:47,233 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:53:47,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1245421237, now seen corresponding path program 1 times [2021-11-19 14:53:47,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:53:47,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209383888] [2021-11-19 14:53:47,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:47,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:53:47,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:53:47,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:53:47,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:53:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:50,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 2507 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:53:50,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:53:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-19 14:53:51,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:53:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2021-11-19 14:53:52,205 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:53:52,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209383888] [2021-11-19 14:53:52,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209383888] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:53:52,206 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:53:52,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:53:52,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520864170] [2021-11-19 14:53:52,206 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:53:52,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:53:52,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:53:52,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:53:52,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:53:52,210 INFO L87 Difference]: Start difference. First operand 23722 states and 32459 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-19 14:53:54,676 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 14:54:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:02,914 INFO L93 Difference]: Finished difference Result 66412 states and 90822 transitions. [2021-11-19 14:54:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:54:02,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 291 [2021-11-19 14:54:02,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:03,445 INFO L225 Difference]: With dead ends: 66412 [2021-11-19 14:54:03,445 INFO L226 Difference]: Without dead ends: 44380 [2021-11-19 14:54:03,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 578 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 14:54:03,557 INFO L933 BasicCegarLoop]: 5682 mSDtfsCounter, 5432 mSDsluCounter, 4214 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 524 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5432 SdHoareTripleChecker+Valid, 9896 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:03,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5432 Valid, 9896 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 1206 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-19 14:54:03,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44380 states. [2021-11-19 14:54:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44380 to 44372. [2021-11-19 14:54:06,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44372 states, 30225 states have (on average 1.2523738626964434) internal successors, (37853), 31204 states have internal predecessors, (37853), 11369 states have call successors, (11369), 2777 states have call predecessors, (11369), 2777 states have return successors, (11369), 11043 states have call predecessors, (11369), 11369 states have call successors, (11369) [2021-11-19 14:54:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44372 states to 44372 states and 60591 transitions. [2021-11-19 14:54:06,884 INFO L78 Accepts]: Start accepts. Automaton has 44372 states and 60591 transitions. Word has length 291 [2021-11-19 14:54:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:06,885 INFO L470 AbstractCegarLoop]: Abstraction has 44372 states and 60591 transitions. [2021-11-19 14:54:06,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 4 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-19 14:54:06,886 INFO L276 IsEmpty]: Start isEmpty. Operand 44372 states and 60591 transitions. [2021-11-19 14:54:06,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-19 14:54:06,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:06,951 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 14, 14, 14, 14, 14, 14, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:07,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:54:07,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:54:07,162 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:07,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:07,162 INFO L85 PathProgramCache]: Analyzing trace with hash -286237096, now seen corresponding path program 1 times [2021-11-19 14:54:07,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:54:07,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353007650] [2021-11-19 14:54:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:07,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:54:07,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:54:07,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:54:07,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:54:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:10,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 2466 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:54:10,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:54:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 978 trivial. 0 not checked. [2021-11-19 14:54:11,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:54:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1119 trivial. 0 not checked. [2021-11-19 14:54:12,019 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:54:12,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353007650] [2021-11-19 14:54:12,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353007650] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:54:12,019 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:54:12,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:54:12,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311502299] [2021-11-19 14:54:12,020 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:54:12,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:54:12,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:54:12,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:54:12,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:54:12,021 INFO L87 Difference]: Start difference. First operand 44372 states and 60591 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2021-11-19 14:54:14,414 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 14:54:24,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:24,255 INFO L93 Difference]: Finished difference Result 129144 states and 176428 transitions. [2021-11-19 14:54:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:54:24,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 298 [2021-11-19 14:54:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:24,899 INFO L225 Difference]: With dead ends: 129144 [2021-11-19 14:54:24,900 INFO L226 Difference]: Without dead ends: 86462 [2021-11-19 14:54:25,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 592 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 14:54:25,107 INFO L933 BasicCegarLoop]: 5912 mSDtfsCounter, 6022 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 642 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6022 SdHoareTripleChecker+Valid, 10538 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:25,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6022 Valid, 10538 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 1159 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-19 14:54:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86462 states. [2021-11-19 14:54:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86462 to 86458. [2021-11-19 14:54:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86458 states, 58907 states have (on average 1.2526694620333747) internal successors, (73791), 60806 states have internal predecessors, (73791), 22135 states have call successors, (22135), 5415 states have call predecessors, (22135), 5415 states have return successors, (22135), 21517 states have call predecessors, (22135), 22135 states have call successors, (22135) [2021-11-19 14:54:30,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86458 states to 86458 states and 118061 transitions. [2021-11-19 14:54:30,791 INFO L78 Accepts]: Start accepts. Automaton has 86458 states and 118061 transitions. Word has length 298 [2021-11-19 14:54:30,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:30,793 INFO L470 AbstractCegarLoop]: Abstraction has 86458 states and 118061 transitions. [2021-11-19 14:54:30,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2021-11-19 14:54:30,793 INFO L276 IsEmpty]: Start isEmpty. Operand 86458 states and 118061 transitions. [2021-11-19 14:54:31,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-19 14:54:31,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:31,352 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 14, 14, 14, 14, 14, 14, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:31,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:54:31,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:54:31,554 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:31,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:31,555 INFO L85 PathProgramCache]: Analyzing trace with hash 620660613, now seen corresponding path program 1 times [2021-11-19 14:54:31,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:54:31,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585973509] [2021-11-19 14:54:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:31,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:54:31,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:54:31,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:54:31,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbedff6-6f06-4637-b5db-2724c3e03af3/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process