./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH --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 da5766c1ca12341f0994689f6bf08ae5600fa9a989c5b43eb2692fd9555b0295 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:55:55,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:55:55,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:55:55,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:55:55,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:55:55,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:55:55,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:55:55,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:55:55,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:55:55,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:55:55,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:55:55,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:55:55,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:55:55,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:55:55,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:55:55,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:55:55,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:55:55,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:55:55,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:55:55,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:55:55,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:55:55,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:55:55,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:55:55,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:55:55,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:55:55,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:55:55,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:55:55,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:55:55,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:55:55,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:55:55,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:55:55,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:55:55,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:55:55,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:55:55,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:55:55,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:55:55,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:55:55,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:55:55,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:55:55,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:55:55,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:55:55,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:55:55,430 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:55:55,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:55:55,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:55:55,432 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:55:55,433 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:55:55,433 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:55:55,433 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:55:55,433 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:55:55,439 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:55:55,440 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:55:55,441 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:55:55,441 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:55:55,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:55:55,442 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:55:55,442 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:55:55,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:55:55,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:55:55,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:55:55,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:55:55,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:55:55,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:55:55,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:55:55,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:55:55,445 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:55:55,445 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:55:55,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:55:55,445 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:55:55,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:55:55,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:55:55,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:55:55,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:55:55,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:55:55,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:55:55,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:55:55,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:55:55,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:55:55,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:55:55,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:55:55,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:55:55,450 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_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da5766c1ca12341f0994689f6bf08ae5600fa9a989c5b43eb2692fd9555b0295 [2021-11-03 04:55:55,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:55:55,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:55:55,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:55:55,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:55:55,750 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:55:55,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c [2021-11-03 04:55:55,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data/9fdf00428/b91e4d0f45474f449e8455803cbaff56/FLAGfe6c45532 [2021-11-03 04:55:56,500 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:55:56,502 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c [2021-11-03 04:55:56,540 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data/9fdf00428/b91e4d0f45474f449e8455803cbaff56/FLAGfe6c45532 [2021-11-03 04:55:56,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data/9fdf00428/b91e4d0f45474f449e8455803cbaff56 [2021-11-03 04:55:56,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:55:56,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:55:56,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:55:56,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:55:56,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:55:56,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:55:56" (1/1) ... [2021-11-03 04:55:56,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b17140c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:56, skipping insertion in model container [2021-11-03 04:55:56,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:55:56" (1/1) ... [2021-11-03 04:55:56,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:55:56,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:55:57,206 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_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c[65397,65410] [2021-11-03 04:55:57,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:55:57,250 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) [2021-11-03 04:55:57,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@30f02af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:57, skipping insertion in model container [2021-11-03 04:55:57,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:55:57,254 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:55:57,258 INFO L168 Benchmark]: Toolchain (without parser) took 536.23 ms. Allocated memory is still 96.5 MB. Free memory was 57.4 MB in the beginning and 61.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:55:57,259 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory was 75.9 MB in the beginning and 75.8 MB in the end (delta: 42.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:55:57,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.08 ms. Allocated memory is still 96.5 MB. Free memory was 57.2 MB in the beginning and 61.8 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:55:57,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory was 75.9 MB in the beginning and 75.8 MB in the end (delta: 42.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 534.08 ms. Allocated memory is still 96.5 MB. Free memory was 57.2 MB in the beginning and 61.8 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 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_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH --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 da5766c1ca12341f0994689f6bf08ae5600fa9a989c5b43eb2692fd9555b0295 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:55:59,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:55:59,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:55:59,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:55:59,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:55:59,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:55:59,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:55:59,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:55:59,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:55:59,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:55:59,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:55:59,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:55:59,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:55:59,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:55:59,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:55:59,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:55:59,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:55:59,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:55:59,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:55:59,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:55:59,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:55:59,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:55:59,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:55:59,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:55:59,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:55:59,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:55:59,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:55:59,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:55:59,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:55:59,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:55:59,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:55:59,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:55:59,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:55:59,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:55:59,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:55:59,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:55:59,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:55:59,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:55:59,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:55:59,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:55:59,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:55:59,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:55:59,646 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:55:59,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:55:59,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:55:59,648 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:55:59,648 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:55:59,649 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:55:59,649 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:55:59,649 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:55:59,650 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:55:59,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:55:59,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:55:59,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:55:59,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:55:59,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:55:59,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:55:59,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:55:59,653 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:55:59,654 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:55:59,654 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:55:59,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:55:59,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:55:59,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:55:59,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:55:59,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:55:59,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:55:59,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:55:59,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:55:59,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:55:59,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:55:59,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:55:59,657 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:55:59,657 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:55:59,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:55:59,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:55:59,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:55:59,658 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_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da5766c1ca12341f0994689f6bf08ae5600fa9a989c5b43eb2692fd9555b0295 [2021-11-03 04:56:00,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:56:00,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:56:00,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:56:00,072 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:56:00,074 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:56:00,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c [2021-11-03 04:56:00,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data/76395dd86/d4843fefb4c24f5088e0a794396bf70f/FLAG823ec9748 [2021-11-03 04:56:00,891 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:56:00,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c [2021-11-03 04:56:00,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data/76395dd86/d4843fefb4c24f5088e0a794396bf70f/FLAG823ec9748 [2021-11-03 04:56:01,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/data/76395dd86/d4843fefb4c24f5088e0a794396bf70f [2021-11-03 04:56:01,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:56:01,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:56:01,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:01,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:56:01,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:56:01,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:01,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f8cc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01, skipping insertion in model container [2021-11-03 04:56:01,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:01,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:56:01,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:56:01,560 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_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c[65397,65410] [2021-11-03 04:56:01,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:01,588 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:56:01,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:56:01,684 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_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c[65397,65410] [2021-11-03 04:56:01,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:01,695 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:56:01,821 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_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-2.c[65397,65410] [2021-11-03 04:56:01,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:01,864 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:56:01,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01 WrapperNode [2021-11-03 04:56:01,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:01,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:56:01,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:56:01,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:56:01,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:01,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:01,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:56:01,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:56:01,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:56:01,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:56:01,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:01,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:01,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:01,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:02,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:02,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:02,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:02,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:56:02,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:56:02,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:56:02,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:56:02,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (1/1) ... [2021-11-03 04:56:02,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:56:02,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:56:02,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:56:02,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:56:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:56:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:56:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:56:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:56:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:56:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:56:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:56:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:56:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:56:02,411 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:56:11,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-03 04:56:11,732 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-03 04:56:11,750 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:56:11,750 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 04:56:11,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:56:11 BoogieIcfgContainer [2021-11-03 04:56:11,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:56:11,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:56:11,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:56:11,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:56:11,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:56:01" (1/3) ... [2021-11-03 04:56:11,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1c85d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:56:11, skipping insertion in model container [2021-11-03 04:56:11,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:01" (2/3) ... [2021-11-03 04:56:11,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1c85d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:56:11, skipping insertion in model container [2021-11-03 04:56:11,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:56:11" (3/3) ... [2021-11-03 04:56:11,765 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-2.c [2021-11-03 04:56:11,770 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:56:11,770 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:56:11,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:56:11,822 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 [2021-11-03 04:56:11,822 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 04:56:11,850 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) [2021-11-03 04:56:11,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:56:11,860 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:11,860 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] [2021-11-03 04:56:11,861 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:11,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:11,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-11-03 04:56:11,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:11,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839453325] [2021-11-03 04:56:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:11,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:11,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:11,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:11,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:56:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:12,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:56:12,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:12,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:12,446 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:12,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839453325] [2021-11-03 04:56:12,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839453325] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:12,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:12,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:56:12,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166354587] [2021-11-03 04:56:12,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:56:12,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:12,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:56:12,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:56:12,469 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) [2021-11-03 04:56:12,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:12,594 INFO L93 Difference]: Finished difference Result 488 states and 825 transitions. [2021-11-03 04:56:12,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:56:12,596 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 [2021-11-03 04:56:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:12,609 INFO L225 Difference]: With dead ends: 488 [2021-11-03 04:56:12,609 INFO L226 Difference]: Without dead ends: 315 [2021-11-03 04:56:12,612 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 [2021-11-03 04:56:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-03 04:56:12,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2021-11-03 04:56:12,666 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) [2021-11-03 04:56:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 472 transitions. [2021-11-03 04:56:12,670 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 472 transitions. Word has length 24 [2021-11-03 04:56:12,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:12,670 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 472 transitions. [2021-11-03 04:56:12,671 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) [2021-11-03 04:56:12,671 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 472 transitions. [2021-11-03 04:56:12,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:56:12,675 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:12,675 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-03 04:56:12,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:12,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:12,888 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1013386387, now seen corresponding path program 1 times [2021-11-03 04:56:12,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:12,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25906699] [2021-11-03 04:56:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:12,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:12,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:12,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:12,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:56:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:13,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:56:13,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:13,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:13,548 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:13,548 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:13,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25906699] [2021-11-03 04:56:13,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25906699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:13,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:13,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:56:13,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747481647] [2021-11-03 04:56:13,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:56:13,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:13,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:56:13,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:56:13,552 INFO L87 Difference]: Start difference. First operand 315 states and 472 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-03 04:56:15,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:15,654 INFO L93 Difference]: Finished difference Result 621 states and 935 transitions. [2021-11-03 04:56:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:56:15,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-11-03 04:56:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:15,657 INFO L225 Difference]: With dead ends: 621 [2021-11-03 04:56:15,657 INFO L226 Difference]: Without dead ends: 414 [2021-11-03 04:56:15,659 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:56:15,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-03 04:56:15,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2021-11-03 04:56:15,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 1.4963680387409202) internal successors, (618), 413 states have internal predecessors, (618), 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) [2021-11-03 04:56:15,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 618 transitions. [2021-11-03 04:56:15,713 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 618 transitions. Word has length 58 [2021-11-03 04:56:15,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:15,713 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 618 transitions. [2021-11-03 04:56:15,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-03 04:56:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 618 transitions. [2021-11-03 04:56:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 04:56:15,718 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:15,718 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-03 04:56:15,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:15,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:15,931 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:15,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:15,932 INFO L85 PathProgramCache]: Analyzing trace with hash 734843988, now seen corresponding path program 1 times [2021-11-03 04:56:15,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:15,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184150620] [2021-11-03 04:56:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:15,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:15,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:15,940 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:15,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:56:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:16,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:56:16,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:16,564 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 04:56:16,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 04:56:16,868 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:16,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184150620] [2021-11-03 04:56:16,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184150620] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:16,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:16,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:56:16,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319925063] [2021-11-03 04:56:16,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:56:16,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:16,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:56:16,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:56:16,871 INFO L87 Difference]: Start difference. First operand 414 states and 618 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2021-11-03 04:56:19,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:19,063 INFO L93 Difference]: Finished difference Result 1020 states and 1528 transitions. [2021-11-03 04:56:19,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:56:19,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 76 [2021-11-03 04:56:19,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:19,069 INFO L225 Difference]: With dead ends: 1020 [2021-11-03 04:56:19,070 INFO L226 Difference]: Without dead ends: 714 [2021-11-03 04:56:19,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:56:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-11-03 04:56:19,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 616. [2021-11-03 04:56:19,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 615 states have (on average 1.4926829268292683) internal successors, (918), 615 states have internal predecessors, (918), 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) [2021-11-03 04:56:19,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 918 transitions. [2021-11-03 04:56:19,117 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 918 transitions. Word has length 76 [2021-11-03 04:56:19,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:19,117 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 918 transitions. [2021-11-03 04:56:19,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2021-11-03 04:56:19,118 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 918 transitions. [2021-11-03 04:56:19,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-03 04:56:19,126 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:19,126 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1] [2021-11-03 04:56:19,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:19,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:19,340 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:19,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:19,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1308457232, now seen corresponding path program 1 times [2021-11-03 04:56:19,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:19,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692301957] [2021-11-03 04:56:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:19,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:19,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:19,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:19,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25864ae-11d3-4a0d-aa28-4e2a4e0e157a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:56:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:20,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:56:20,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:29,253 WARN L207 SmtUtils]: Spent 8.81 s on a formula simplification that was a NOOP. DAG size: 19 [2021-11-03 04:56:29,254 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:56:29,255 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 [2021-11-03 04:57:09,326 WARN L207 SmtUtils]: Spent 40.03 s on a formula simplification that was a NOOP. DAG size: 23 [2021-11-03 04:57:09,327 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:09,327 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 4355 treesize of output 3963