./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8 --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 32bit --witnessprinter.graph.data.programhash 46dd66c9a206199cd5bc220ec6fbc33cff9c3bf85e99aafe68b123163a041adf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:01:02,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:01:02,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:01:02,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:01:02,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:01:02,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:01:02,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:01:02,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:01:02,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:01:02,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:01:02,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:01:02,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:01:02,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:01:02,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:01:02,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:01:02,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:01:02,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:01:02,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:01:02,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:01:02,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:01:02,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:01:02,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:01:02,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:01:02,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:01:02,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:01:02,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:01:02,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:01:02,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:01:02,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:01:02,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:01:02,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:01:02,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:01:02,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:01:02,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:01:02,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:01:02,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:01:02,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:01:02,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:01:02,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:01:02,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:01:02,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:01:02,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:01:02,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:01:02,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:01:02,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:01:02,179 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:01:02,179 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:01:02,179 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:01:02,179 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:01:02,180 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:01:02,180 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:01:02,180 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:01:02,180 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:01:02,181 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:01:02,181 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:01:02,181 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:01:02,181 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:01:02,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:01:02,183 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:01:02,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:01:02,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:01:02,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:01:02,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:01:02,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:01:02,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:01:02,184 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:01:02,185 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:01:02,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:01:02,185 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:01:02,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:01:02,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:01:02,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:01:02,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:01:02,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:01:02,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:01:02,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:01:02,187 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:01:02,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:01:02,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:01:02,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:01:02,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:01:02,189 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_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46dd66c9a206199cd5bc220ec6fbc33cff9c3bf85e99aafe68b123163a041adf [2021-11-07 02:01:02,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:01:02,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:01:02,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:01:02,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:01:02,583 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:01:02,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c [2021-11-07 02:01:02,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data/c6ede8652/41dc981fdf7a46bf940675da04e78f6a/FLAG0ecc1f7e5 [2021-11-07 02:01:03,401 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:01:03,402 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c [2021-11-07 02:01:03,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data/c6ede8652/41dc981fdf7a46bf940675da04e78f6a/FLAG0ecc1f7e5 [2021-11-07 02:01:03,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data/c6ede8652/41dc981fdf7a46bf940675da04e78f6a [2021-11-07 02:01:03,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:01:03,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:01:03,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:03,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:01:03,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:01:03,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:03" (1/1) ... [2021-11-07 02:01:03,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638873f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:03, skipping insertion in model container [2021-11-07 02:01:03,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:03" (1/1) ... [2021-11-07 02:01:03,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:01:03,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:01:04,038 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2021-11-07 02:01:04,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:04,067 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) [2021-11-07 02:01:04,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@702129e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:04, skipping insertion in model container [2021-11-07 02:01:04,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:04,069 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:01:04,072 INFO L168 Benchmark]: Toolchain (without parser) took 519.06 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 52.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:04,079 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 86.0 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:01:04,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.20 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 52.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:04,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 86.0 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.20 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 52.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1050]: 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_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8 --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 32bit --witnessprinter.graph.data.programhash 46dd66c9a206199cd5bc220ec6fbc33cff9c3bf85e99aafe68b123163a041adf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:01:06,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:01:06,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:01:06,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:01:06,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:01:06,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:01:06,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:01:06,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:01:06,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:01:06,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:01:06,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:01:06,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:01:06,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:01:06,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:01:06,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:01:06,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:01:06,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:01:06,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:01:06,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:01:06,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:01:06,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:01:06,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:01:06,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:01:06,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:01:06,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:01:06,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:01:06,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:01:06,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:01:06,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:01:06,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:01:06,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:01:06,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:01:06,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:01:06,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:01:06,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:01:06,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:01:06,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:01:06,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:01:06,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:01:06,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:01:06,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:01:06,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:01:06,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:01:06,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:01:06,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:01:06,860 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:01:06,860 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:01:06,861 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:01:06,861 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:01:06,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:01:06,861 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:01:06,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:01:06,864 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:01:06,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:01:06,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:01:06,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:01:06,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:01:06,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:01:06,866 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:01:06,866 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:01:06,866 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:01:06,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:01:06,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:01:06,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:01:06,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:01:06,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:01:06,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:01:06,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:01:06,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:01:06,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:01:06,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:01:06,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:01:06,869 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:01:06,870 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:01:06,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:01:06,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:01:06,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:01:06,871 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_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46dd66c9a206199cd5bc220ec6fbc33cff9c3bf85e99aafe68b123163a041adf [2021-11-07 02:01:07,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:01:07,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:01:07,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:01:07,314 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:01:07,316 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:01:07,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c [2021-11-07 02:01:07,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data/1384857ca/9563eaa5ae9d4c1db30ea5b7fece9517/FLAG0563fa53c [2021-11-07 02:01:08,200 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:01:08,201 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c [2021-11-07 02:01:08,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data/1384857ca/9563eaa5ae9d4c1db30ea5b7fece9517/FLAG0563fa53c [2021-11-07 02:01:08,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/data/1384857ca/9563eaa5ae9d4c1db30ea5b7fece9517 [2021-11-07 02:01:08,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:01:08,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:01:08,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:08,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:01:08,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:01:08,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:08" (1/1) ... [2021-11-07 02:01:08,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f95ed83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:08, skipping insertion in model container [2021-11-07 02:01:08,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:08" (1/1) ... [2021-11-07 02:01:08,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:01:08,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:01:08,914 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2021-11-07 02:01:08,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:08,965 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:01:08,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:01:09,079 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2021-11-07 02:01:09,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:09,092 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:01:09,232 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2021-11-07 02:01:09,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:09,255 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:01:09,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09 WrapperNode [2021-11-07 02:01:09,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:09,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:01:09,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:01:09,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:01:09,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:01:09,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:01:09,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:01:09,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:01:09,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:01:09,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:01:09,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:01:09,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:01:09,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (1/1) ... [2021-11-07 02:01:09,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:01:09,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:01:09,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:01:09,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:01:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:01:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:01:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:01:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:01:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:01:09,903 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:01:18,245 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-07 02:01:18,246 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-07 02:01:18,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:01:18,255 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 02:01:18,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:01:18 BoogieIcfgContainer [2021-11-07 02:01:18,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:01:18,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:01:18,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:01:18,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:01:18,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:01:08" (1/3) ... [2021-11-07 02:01:18,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298b1f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:01:18, skipping insertion in model container [2021-11-07 02:01:18,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:09" (2/3) ... [2021-11-07 02:01:18,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298b1f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:01:18, skipping insertion in model container [2021-11-07 02:01:18,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:01:18" (3/3) ... [2021-11-07 02:01:18,266 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-2.c [2021-11-07 02:01:18,272 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:01:18,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:01:18,339 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:01:18,348 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 [2021-11-07 02:01:18,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:01:18,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:18,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 02:01:18,394 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:18,395 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:01:18,395 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:01:18,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:18,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-11-07 02:01:18,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:18,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139474741] [2021-11-07 02:01:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:18,426 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:18,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:18,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:18,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:01:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:18,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:01:18,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:18,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:19,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:19,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139474741] [2021-11-07 02:01:19,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139474741] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:19,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:19,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:01:19,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188365813] [2021-11-07 02:01:19,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:01:19,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:19,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:01:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:19,064 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:19,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:19,191 INFO L93 Difference]: Finished difference Result 488 states and 825 transitions. [2021-11-07 02:01:19,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:01:19,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 02:01:19,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:19,207 INFO L225 Difference]: With dead ends: 488 [2021-11-07 02:01:19,208 INFO L226 Difference]: Without dead ends: 315 [2021-11-07 02:01:19,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:19,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-07 02:01:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2021-11-07 02:01:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.5031847133757963) internal successors, (472), 314 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 472 transitions. [2021-11-07 02:01:19,276 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 472 transitions. Word has length 24 [2021-11-07 02:01:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:19,276 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 472 transitions. [2021-11-07 02:01:19,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 472 transitions. [2021-11-07 02:01:19,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 02:01:19,281 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:19,281 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-11-07 02:01:19,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:19,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:19,497 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:01:19,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:19,498 INFO L85 PathProgramCache]: Analyzing trace with hash -919689487, now seen corresponding path program 1 times [2021-11-07 02:01:19,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:19,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44204014] [2021-11-07 02:01:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:19,499 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:19,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:19,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:19,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:01:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:19,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:01:19,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:20,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:20,301 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:20,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44204014] [2021-11-07 02:01:20,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44204014] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:20,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:20,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:01:20,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361302544] [2021-11-07 02:01:20,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:01:20,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:20,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:01:20,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:20,306 INFO L87 Difference]: Start difference. First operand 315 states and 472 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:22,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:22,469 INFO L93 Difference]: Finished difference Result 724 states and 1092 transitions. [2021-11-07 02:01:22,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:01:22,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 02:01:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:22,474 INFO L225 Difference]: With dead ends: 724 [2021-11-07 02:01:22,475 INFO L226 Difference]: Without dead ends: 517 [2021-11-07 02:01:22,477 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2021-11-07 02:01:22,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2021-11-07 02:01:22,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 516 states have (on average 1.496124031007752) internal successors, (772), 516 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:22,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 772 transitions. [2021-11-07 02:01:22,531 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 772 transitions. Word has length 60 [2021-11-07 02:01:22,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:22,532 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 772 transitions. [2021-11-07 02:01:22,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:22,532 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 772 transitions. [2021-11-07 02:01:22,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 02:01:22,552 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:22,552 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:01:22,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:22,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:22,753 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:01:22,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash -874096830, now seen corresponding path program 1 times [2021-11-07 02:01:22,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:22,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715255669] [2021-11-07 02:01:22,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:22,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:22,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:22,757 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:22,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:01:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:23,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:01:23,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:23,501 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 02:01:23,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 02:01:23,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:23,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715255669] [2021-11-07 02:01:23,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715255669] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:23,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:23,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:01:23,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935590949] [2021-11-07 02:01:23,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:01:23,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:23,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:01:23,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:23,907 INFO L87 Difference]: Start difference. First operand 517 states and 772 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:26,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:26,151 INFO L93 Difference]: Finished difference Result 1227 states and 1837 transitions. [2021-11-07 02:01:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:01:26,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-07 02:01:26,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:26,159 INFO L225 Difference]: With dead ends: 1227 [2021-11-07 02:01:26,159 INFO L226 Difference]: Without dead ends: 818 [2021-11-07 02:01:26,162 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:26,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2021-11-07 02:01:26,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 719. [2021-11-07 02:01:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 718 states have (on average 1.4916434540389971) internal successors, (1071), 718 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:26,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1071 transitions. [2021-11-07 02:01:26,240 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1071 transitions. Word has length 99 [2021-11-07 02:01:26,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:26,249 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 1071 transitions. [2021-11-07 02:01:26,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:26,249 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1071 transitions. [2021-11-07 02:01:26,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-07 02:01:26,260 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:26,260 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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] [2021-11-07 02:01:26,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:26,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:26,469 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:01:26,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:26,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1561396444, now seen corresponding path program 1 times [2021-11-07 02:01:26,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:26,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558567836] [2021-11-07 02:01:26,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:26,472 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:26,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:26,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:26,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:01:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:27,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:01:27,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:39,949 WARN L207 SmtUtils]: Spent 12.21 s on a formula simplification that was a NOOP. DAG size: 19 [2021-11-07 02:01:39,950 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:01:39,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 4938 treesize of output 4458 [2021-11-07 02:02:20,286 WARN L207 SmtUtils]: Spent 40.29 s on a formula simplification that was a NOOP. DAG size: 23 [2021-11-07 02:02:20,287 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:20,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 4439 treesize of output 4067 [2021-11-07 02:15:05,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-07 02:15:05,212 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-07 02:15:05,214 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:05,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558567836] [2021-11-07 02:15:05,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-07 02:15:05,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1418115498] [2021-11-07 02:15:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:05,215 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:15:05,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:15:05,217 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:15:05,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eb651a4-b3b6-4d7c-9e78-041c48ed2d1c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process